Rock Hill, South Carolina Weather Conditions

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Current Conditions

  • 81°
  • Clear
  • Wind: NE 5 mph
  • Humidity: 47%
  • Visibility: 10.0 miles
  • Dew Point: 59°
  • Pressure: 30.01 in. -
  • Heat Index: 81

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Next 12 Hours

5  pm
8  pm
11  pm
2  am
5  am
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Fog
Fog
81°
72°
64°
63°
57°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Partly Cloudy
  • High: 81 °
  • Low: 57 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 84 °
  • Low: 63 °
  • Partly Cloudy
  • Monday
  • Partly Cloudy
  • High: 77 °
  • Low: 55 °
  • Partly Cloudy
  • Tuesday
  • Partly Cloudy
  • High: 75 °
  • Low: 52 °
  • Partly Cloudy
  • Wednesday
  • Partly Cloudy
  • High: 73 °
  • Low: 59 °
  • Partly Cloudy

Forecast for Rock Hill, South Carolina

Updated: 5:00 PM EDT on September 20, 2014

  • Saturday

    Partly cloudy in the morning, then clear. High of 81F. Winds from the NNE at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Fog overnight. Low of 57F. Winds less than 5 mph.

  • Sunday

    Partly cloudy in the morning, then clear. High of 84F. Winds from the West at 5 to 10 mph.

  • Sunday Night

    Partly cloudy. Low of 63F. Winds from the WSW at 5 to 10 mph.

  • Monday

    Partly cloudy. High of 77F. Winds from the North at 5 to 15 mph.

  • Monday Night

    Clear in the evening, then partly cloudy. Low of 55F. Winds from the NNE at 5 to 10 mph.

  • Tuesday

    Partly cloudy. High of 75F. Winds from the NE at 5 to 10 mph.

  • Tuesday Night

    Clear in the evening, then partly cloudy. Low of 52F. Winds from the NE at 5 to 10 mph.

  • Wednesday

    Partly cloudy. High of 73F. Winds from the NE at 10 to 15 mph.

  • Wednesday Night

    Clear. Low of 59F. Winds from the NE at 5 to 10 mph.

  • Thursday

    Overcast. High of 72F. Winds from the NE at 10 to 15 mph.

  • Thursday Night

    Mostly cloudy. Low of 61F. Winds from the NE at 10 to 15 mph.

  • Friday

    Mostly cloudy with a chance of rain. High of 75F. Winds from the NE at 10 to 15 mph. Chance of rain 20%.

  • Friday Night

    Clear. Low of 63F. Winds from the NE at 10 to 15 mph.

  • Saturday

    Overcast with a chance of rain. High of 77F. Winds from the NE at 10 to 15 mph. Chance of rain 70% with rainfall amounts near 0.5 in. possible.

  • Saturday Night

    Overcast with a chance of rain. Fog overnight. Low of 57F. Winds from the NE at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.9 in. possible.

  • Sunday

    Overcast with a chance of rain. High of 77F. Winds from the NE at 5 to 10 mph. Chance of rain 60%.

  • Sunday Night

    Overcast with a chance of rain. Fog overnight. Low of 59F. Winds from the NE at 5 to 10 mph. Chance of rain 40%.

  • Monday

    Mostly cloudy. High of 77F. Winds less than 5 mph.

  • Monday Night

    Partly cloudy. Low of 61F. Winds less than 5 mph.

  • Tuesday

    Clear. High of 79F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Low of 61F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 79F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Low of 61F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Winthrop University, Rock Hill, SC

Updated: 6:02 PM EDT

Temperature: 79.9 °F Dew Point: 52 °F Humidity: 38% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Twinoaks Observatory, Rock Hill, SC

Updated: 6:00 PM EDT

Temperature: 80.7 °F Dew Point: 61 °F Humidity: 51% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Walter Elisha Park Area, Fort Mill, SC

Updated: 6:00 PM EDT

Temperature: 80.2 °F Dew Point: 57 °F Humidity: 45% Wind: NE at 1.6 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Luna Hill, Tega Cay, SC

Updated: 6:02 PM EDT

Temperature: 78.1 °F Dew Point: 60 °F Humidity: 54% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Derby Downs, York, SC

Updated: 5:50 PM EDT

Temperature: 82.2 °F Dew Point: 64 °F Humidity: 55% Wind: Calm Pressure: 29.92 in Hourly Precipitation: - Heat Index: 84 °F Graphs

Location: Richburg, Chester, SC

Updated: 6:02 PM EDT

Temperature: 80.4 °F Dew Point: 64 °F Humidity: 57% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Bartlett Tree Research Laboratories, Charlotte, NC

Updated: 5:59 PM EDT

Temperature: 84.8 °F Dew Point: 64 °F Humidity: 50% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Van Wyck, SC

Updated: 6:02 PM EDT

Temperature: 78.6 °F Dew Point: 61 °F Humidity: 55% Wind: NE at 1.0 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Bridgehampton, Charlotte, NC

Updated: 5:59 PM EDT

Temperature: 79.0 °F Dew Point: 60 °F Humidity: 53% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Hilton Pond Center for Piedmont Natural History, York, SC

Updated: 6:02 PM EDT

Temperature: 83.9 °F Dew Point: 66 °F Humidity: 55% Wind: NNE at 1.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Firethorne Country Club, Waxhaw, NC

Updated: 6:02 PM EDT

Temperature: 81.8 °F Dew Point: 62 °F Humidity: 51% Wind: Calm Pressure: 29.35 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Cardinal Woods, Pineville, NC

Updated: 6:02 PM EDT

Temperature: 82.0 °F Dew Point: 64 °F Humidity: 55% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Chastain Village, Fort Mill, SC

Updated: 5:57 PM EDT

Temperature: 79.7 °F Dew Point: 63 °F Humidity: 57% Wind: NNW at 1.7 mph Pressure: 29.73 in Hourly Precipitation: - Heat Index: 81 °F Graphs

Location: Riverpointe, Charlotte, NC

Updated: 6:01 PM EDT

Temperature: 79.3 °F Dew Point: 61 °F Humidity: 54% Wind: Calm Pressure: 29.41 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Oakbrook, Marvin, NC

Updated: 5:54 PM EDT

Temperature: 77.6 °F Dew Point: 67 °F Humidity: 70% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Walnut Creek, Charlotte, NC

Updated: 6:02 PM EDT

Temperature: 79.4 °F Dew Point: 55 °F Humidity: 43% Wind: ENE at 2.0 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Hunter Oaks, Waxhaw, NC

Updated: 6:02 PM EDT

Temperature: 80.4 °F Dew Point: 33 °F Humidity: 18% Wind: Calm Pressure: 29.37 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Ballantyne, Charlotte, NC

Updated: 6:02 PM EDT

Temperature: 78.0 °F Dew Point: 61 °F Humidity: 56% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Innisfree, Charlotte, NC

Updated: 6:02 PM EDT

Temperature: 77.7 °F Dew Point: 59 °F Humidity: 53% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Inverness at Piper Glen, Charlotte, NC

Updated: 5:51 PM EDT

Temperature: 77.0 °F Dew Point: 60 °F Humidity: 55% Wind: Calm Pressure: 29.89 in Hourly Precipitation: - Heat Index: 79 °F Graphs

Location: Providence Grove, Waxhaw, NC

Updated: 2:48 PM EDT

Temperature: 81.5 °F Dew Point: 66 °F Humidity: 60% Wind: Calm Pressure: 30.00 in Hourly Precipitation: - Heat Index: 84 °F Graphs

Location: Johnson Land & Cattle Co, Richburg, SC

Updated: 5:52 PM EDT

Temperature: 79.8 °F Dew Point: 62 °F Humidity: 54% Wind: NE at 2.0 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Farmbrook, Waxhaw, NC

Updated: 5:55 PM EDT

Temperature: 76.5 °F Dew Point: 66 °F Humidity: 71% Wind: Calm Pressure: 29.84 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Beverly Woods Neighborhood (PWS), Charlotte, NC

Updated: 6:00 PM EDT

Temperature: 78.2 °F Dew Point: 63 °F Humidity: 59% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Yorkmount, Charlotte, NC

Updated: 5:59 PM EDT

Temperature: 78.1 °F Dew Point: 34 °F Humidity: 40% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: SoCltColRea, Charlotte, NC

Updated: 5:48 PM EDT

Temperature: 79.7 °F Dew Point: 63 °F Humidity: 56% Wind: Calm Pressure: 30.01 in Hourly Precipitation: - Heat Index: 81 °F Graphs

Location: Roney SouthPark Mountainbrook, Charlotte, NC

Updated: 6:02 PM EDT

Temperature: 75.4 °F Dew Point: 62 °F Humidity: 62% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Providence Springs, Charlotte, NC

Updated: 5:53 PM EDT

Temperature: 82.8 °F Dew Point: 59 °F Humidity: 45% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Greenville-Spartanburg SC 
515 PM EDT Sat Sep 20 2014 


Synopsis... 
a weak ridge of high pressure will linger atop the region through 
tonight. Temperatures will warm on Sunday before a cold front 
crosses the Carolinas later that night. Cool and dry high pressure 
will then spread across the region and remain in place through at 
least middle week. 


&& 


Near term /through Sunday/... 
as of 5 PM...forecast in really good shape. Some Ridgetop convection... 
but nothing showing up on kgsp radar. Cannot totally rule out a few 
sprinkles on the ridgetops...but the chance is not high enough to 
mention right now. No changes. 


Previous discussion... 


As of 235 PM...despite model output showing mountain convection...atmos 
should remain capped this afternoon and evening with only ridge top cumulus 
developing. There will also be some jet stream cirrus associated 
with the low pressure system moving up the southeastern coast. Guidance 
suggests a good night for at least patchy dense Mountain Valley fog... 
while most areas outside of the mountains generally too dry. Skies should 
be mostly clear with lows near to slightly below normal. 


An upper trough digs toward the area Sunday pushing a front into the 
mountains by the end of the period. Little in the way of precipitation is 
expected until very late in the period...then only across the mountains 
where moisture...forcing and instability will be better. Low level 
flow remains westerly keeping areas outside of the mountains drier with a low 
level warm nose keeping the atmos generally capped with only weak 
elevated instability at best. Bring chance pop into the Tennessee border 
counties by late afternoon...with slight chance across the rest of the 
mountains...and a dry forecast elsewhere. Cannot rule out an isolated severe 
wind gust across the mountains given the increasing shear and dry middle 
levels...but chance is low. Highs will be 5 to 10 degrees above normal 
as thicknesses increase significantly ahead of the front along with 
the increasing westerly low level flow. 


&& 


Short term /Sunday night through Tuesday/... 
as of 145 PM EDT Saturday...the short term forecast period 
initializes Sunday evening amidst an upper trough ejecting to the east 
across the Great Lakes region with a weak surface low sliding 
through southern Ontario. A cold front will be draped from this 
parent surface low southwest along the Appalachian Mountains. 
Closer to home...a weak upper/surface low off the Carolina coastline 
will migrate northward with no significant impacts expected. There 
remains some uncertainty regarding the amount of ongoing convection 
at forecast initialization. The usually more aggressive/unstable 
NAM indicates nearly 1000j/kg SBCAPE across the warm sector with 
convection spread out across the high terrain and NC 
Piedmont...likely tied to the prefrontal surface trough as a focusing 
mechanism. The GFS/European model (ecmwf) favor a more stable solution with little 
to no prefrontal trough focused activity. Although shear will be 
increasing...the best upper jet dynamics will pass by to the 
north...therefore decided to lean toward the more subtle solutions 
of the GFS/ECMWF. The front will sweep through the region during 
the overnight hours with overall convective coverage expected to 
dissipate with loss of heating. The front looks to clear the 
forecast area by not later than noon on Monday before any diurnal heating 
induced instability can play a factor. 


Behind the front on Monday afternoon...upper trough axis and 
associated vorticity maxima will slide through the southern/central 
Apps. Moderate to strong northwest flow through the profile will 
lead to the possibility of a few upslope induced showers along The 
Spine of the Apps. Thus the forecast will feature chance level probability of precipitation 
across the high terrain Sunday night tapering to slight chance probability of precipitation 
across the remainder of the forecast area through Monday morning to 
account for passage of the front and weak northwest upslope flow 
showers along the Tennessee line. The above mentioned upper features will 
slide east late in the day making way for rising heights and 
Canadian high pressure at the surface that will last through the 
period. This will yield more fall like conditions with temperatures 
generally 8-10 degrees below normal amongst drier northerly flow. 


&& 


Long term /Tuesday night through Saturday/... 
as of 2 PM Saturday...the medium range forecast picks up at 00z on 
Wednesday with heights steadily rising as a broad and steep upper 
ridge spreads across the region. This impressive ridge is expected 
to remain in place through new day 7 over the eastern half of the Continental U.S. 
While another steep upper trough digs down over the West Coast by 
the end of the medium range. 


At the surface...strong Canadian high pressure will be centered to our 
north with cool and dry air over the forecast area. Over the next couple 
of days...the long range guidance suggests that this high will 
gradually drift eastward with some deeper layer moisture encroaching 
upon the County warning forecast area from the south and east. The models differ with 
regards to how far northwest this deeper moisture will expand. The European model (ecmwf) 
continues to show greater coverage over the County warning forecast area on Friday and most of 
Sat while the newer run of the GFS keeps the moisture plume more to 
the south on Friday and then expands it farther north on Sat. 
Interestingly...the latest 12z run of the CMC model keeps the deeper 
moisture even farther south than the GFS through its forecast ending time 
of 12z Friday. Based on the mixed model spread towards the end of the 
forecast period...I did not make any major changes to the sensible forecast. 
I gradually increased probability of precipitation to slight chance during the latter part 
of Thursday and keep them there for Friday. I did include an area of solid 
chance values over the far southern zones for Sat afternoon into Sat 
evening...otherwise most other areas still only carry slight chance. 
Temperatures were changed little with values remaining a few degrees below 
climatology for late sept. 


&& 


Aviation /21z Saturday through Thursday/... 
at kclt and all but kavl...VFR. Few convective cumulus with jet stream 
cirrus this afternoon. Cumulus diminishes this evening but cirrus 
remains. Convective cumulus returns with heating Sunday. Northeasterly wind 
becomes light northerly overnight then increases from the west-northwest with mixing 
Sunday. 


Kavl...ridge top cumulus this afternoon dissipates this evening leaving 
some cirrus in place. All parameters show a good night for valley 
fog. Have gone LIFR around daybreak to indicate this...but vlifr 
quite possible. Fog should burn off quickly after daybreak with cumulus 
developing again with heating. Southerly wind this afternoon becomes calm 
overnight then picks up from the north with mixing Sunday. 


Outlook..a cold front will bring a chance for restrictions mainly 
over the mountains Sunday night and Monday morning. High pressure builds 
back in early next week. 


Confidence table... 


21-03z 03-09z 09-15z 15-21z 
kclt high 100% high 100% high 100% high 100% 
kgsp high 100% high 100% high 100% high 100% 
kavl high 100% high 88% medium 69% high 100% 
khky high 100% high 100% high 100% high 100% 
kgmu high 100% high 100% high 100% high 100% 
kand high 100% high 100% high 100% high 100% 


The percentage reflects the number of guidance members agreeing 
with the scheduled taf issuance flight rule category. Complete 
hourly experimental aviation forecast consistency tables and ensemble 
forecasts are available at the following link: (must be lower case) 


Www.Weather.Gov/gsp/aviation_tables 


&& 


Gsp watches/warnings/advisories... 
Georgia...none. 
NC...none. 
SC...none. 


&& 


$$ 
Synopsis...jpt 
near term...PM/rwh 
short term...cdg 
long term...jpt 
aviation...rwh 












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