Rock Hill, South Carolina Weather Conditions

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Current Conditions

  • 77°
  • Clear
  • Wind: Variable 7 mph
  • Humidity: 62%
  • Visibility: 10.0 miles
  • Dew Point: 63°
  • Pressure: 29.90 in. -

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Next 12 Hours

2  pm
5  pm
8  pm
11  pm
2  am
Clear
Clear
Partly Cloudy
Partly Cloudy
Clear
Clear
Fog
Fog
Fog
Fog
77°
79°
68°
68°
64°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Fog
  • High: 81 °
  • Low: 64 °
  • Fog
  • Wednesday
  • Partly Cloudy
  • High: 82 °
  • Low: 64 °
  • Partly Cloudy
  • Thursday
  • Partly Cloudy
  • High: 82 °
  • Low: 64 °
  • Partly Cloudy
  • Friday
  • Chance of a Thunderstorm
  • High: 73 °
  • Low: 61 °
  • Chance of T-Storms
  • Saturday
  • Partly Cloudy
  • High: 68 °
  • Low: 54 °
  • Partly Cloudy

Forecast for Rock Hill, South Carolina

Updated: 11:00 AM EDT on September 30, 2014

  • Tuesday

    Partly cloudy. Fog early. High of 81F. Winds less than 5 mph.

  • Tuesday Night

    Partly cloudy. Fog overnight. Low of 64F. Winds less than 5 mph.

  • Wednesday

    Partly cloudy. Fog early. High of 82F. Winds less than 5 mph.

  • Wednesday Night

    Clear in the evening, then mostly cloudy. Low of 64F. Winds less than 5 mph.

  • Thursday

    Overcast in the morning, then partly cloudy. High of 82F. Winds less than 5 mph.

  • Thursday Night

    Overcast. Low of 64F. Winds from the South at 5 to 10 mph.

  • Friday

    Overcast with a chance of a thunderstorm and rain in the afternoon. High of 73F. Winds from the South at 10 to 15 mph. Chance of rain 50%.

  • Friday Night

    Overcast with a chance of a thunderstorm and rain in the evening, then mostly cloudy. Low of 61F. Winds from the WSW at 5 to 15 mph shifting to the NNW after midnight. Chance of rain 50%.

  • Saturday

    Partly cloudy. High of 68F. Winds from the NNW at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 54F. Winds from the NNW at 5 to 10 mph.

  • Sunday

    Clear. High of 70F. Winds from the SSW at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 48F. Winds from the SSW at 5 to 10 mph.

  • Monday

    Partly cloudy. High of 72F. Winds from the SW at 5 to 15 mph.

  • Monday Night

    Partly cloudy. Fog overnight. Low of 57F. Winds from the SW at 5 to 10 mph.

  • Tuesday

    Clear. High of 75F. Winds from the SW at 5 to 10 mph.

  • Tuesday Night

    Clear. Low of 54F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 75F. Winds less than 5 mph.

  • Wednesday Night

    Partly cloudy. Fog overnight. Low of 54F. Winds less than 5 mph.

  • Thursday

    Clear. High of 70F. Winds less than 5 mph.

  • Thursday Night

    Partly cloudy. Fog overnight. Low of 55F. Winds less than 5 mph.

  • Friday

    Clear. High of 68F. Winds less than 5 mph.

  • Friday Night

    Clear. Fog overnight. Low of 55F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Winthrop University, Rock Hill, SC

Updated: 1:50 PM EDT

Temperature: 78.8 °F Dew Point: 66 °F Humidity: 66% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Twinoaks Observatory, Rock Hill, SC

Updated: 1:30 PM EDT

Temperature: 78.0 °F Dew Point: 67 °F Humidity: 68% Wind: NE at 2.0 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Walter Elisha Park Area, Fort Mill, SC

Updated: 1:45 PM EDT

Temperature: 79.7 °F Dew Point: 61 °F Humidity: 53% Wind: Calm Pressure: 29.66 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Luna Hill, Tega Cay, SC

Updated: 1:50 PM EDT

Temperature: 75.1 °F Dew Point: 64 °F Humidity: 69% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Derby Downs, York, SC

Updated: 1:39 PM EDT

Temperature: 80.6 °F Dew Point: 68 °F Humidity: 66% Wind: Calm Pressure: 29.78 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: Richburg, Chester, SC

Updated: 1:50 PM EDT

Temperature: 86.4 °F Dew Point: 66 °F Humidity: 51% Wind: North at 1.6 mph Pressure: 29.73 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: Bartlett Tree Research Laboratories, Charlotte, NC

Updated: 1:49 PM EDT

Temperature: 78.7 °F Dew Point: 68 °F Humidity: 70% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Van Wyck, SC

Updated: 1:50 PM EDT

Temperature: 78.2 °F Dew Point: 67 °F Humidity: 68% Wind: NE at 1.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: River Hills Plantation, Lake Wylie, SC

Updated: 1:38 PM EDT

Temperature: 78.3 °F Dew Point: 67 °F Humidity: 69% Wind: Calm Pressure: 29.71 in Hourly Precipitation: - Heat Index: 80 °F Graphs

Location: Bridgehampton, Charlotte, NC

Updated: 1:50 PM EDT

Temperature: 79.8 °F Dew Point: 68 °F Humidity: 67% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

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

Updated: 1:50 PM EDT

Temperature: 79.0 °F Dew Point: 68 °F Humidity: 68% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Firethorne Country Club, Waxhaw, NC

Updated: 1:50 PM EDT

Temperature: 82.5 °F Dew Point: 66 °F Humidity: 58% Wind: NE at 2.8 mph Pressure: 29.23 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Cardinal Woods, Pineville, NC

Updated: 1:50 PM EDT

Temperature: 82.3 °F Dew Point: 69 °F Humidity: 65% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Chastain Village, Fort Mill, SC

Updated: 1:50 PM EDT

Temperature: 78.8 °F Dew Point: 67 °F Humidity: 68% Wind: WNW at 1.7 mph Pressure: 29.61 in Hourly Precipitation: - Heat Index: 81 °F Graphs

Location: Oakbrook, Marvin, NC

Updated: 1:45 PM EDT

Temperature: 80.4 °F Dew Point: 68 °F Humidity: 66% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Walnut Creek, Charlotte, NC

Updated: 1:50 PM EDT

Temperature: 77.6 °F Dew Point: -17 °F Humidity: 2% Wind: ENE at 5.8 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Ballantyne, Charlotte, NC

Updated: 1:50 PM EDT

Temperature: 78.0 °F Dew Point: 68 °F Humidity: 72% Wind: NNW at 3.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Innisfree, Charlotte, NC

Updated: 1:50 PM EDT

Temperature: 78.1 °F Dew Point: 64 °F Humidity: 63% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Inverness at Piper Glen, Charlotte, NC

Updated: 1:35 PM EDT

Temperature: 75.4 °F Dew Point: 64 °F Humidity: 67% Wind: Calm Pressure: 29.75 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Providence Grove, Waxhaw, NC

Updated: 1:44 PM EDT

Temperature: 81.3 °F Dew Point: 71 °F Humidity: 70% Wind: SSE at 2.2 mph Pressure: 29.80 in Hourly Precipitation: - Heat Index: 85 °F Graphs

Location: Johnson Land & Cattle Co, Richburg, SC

Updated: 1:42 PM EDT

Temperature: 78.4 °F Dew Point: 67 °F Humidity: 68% Wind: NNE at 2.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Waxaw - Lawson, Waxhaw, NC

Updated: 1:50 PM EDT

Temperature: 81.3 °F Dew Point: 67 °F Humidity: 61% Wind: ESE at 1.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Farmbrook, Waxhaw, NC

Updated: 1:41 PM EDT

Temperature: 78.8 °F Dew Point: 67 °F Humidity: 67% Wind: Calm Pressure: 29.74 in Hourly Precipitation: - Heat Index: 81 °F Graphs

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

Updated: 1:50 PM EDT

Temperature: 77.0 °F Dew Point: 64 °F Humidity: 65% Wind: SE at 1.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Yorkmount, Charlotte, NC

Updated: 1:49 PM EDT

Temperature: 75.0 °F Dew Point: 43 °F Humidity: 62% Wind: Calm Pressure: 29.15 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: SoCltColRea, Charlotte, NC

Updated: 1:42 PM EDT

Temperature: 80.2 °F Dew Point: 66 °F Humidity: 61% Wind: Calm Pressure: 29.90 in Hourly Precipitation: - Heat Index: 82 °F Graphs

Location: Roney SouthPark Mountainbrook, Charlotte, NC

Updated: 1:50 PM EDT

Temperature: 76.5 °F Dew Point: 62 °F Humidity: 62% Wind: NNE at 1.6 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 78 °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 
119 PM EDT Tuesday Sep 30 2014 


Synopsis... 
drier high pressure will build over the region on today and linger 
through Thursday. A cold front will arrive from the northwest on 
Friday with a cool and dry air mass moving back into the region over 
the weekend. 


&& 


Near term /through tonight/... 
1715 update...sky cover has been adjusted per the latest visible 
satellite imagery. Winds were updated with a blend of the latest NAM 
and adjmav guidance. 


At 1000 am EDT Tuesday...an upper trough axis was located over the 
eastern Seaboard...with one shortwave leaving the coast of the 
Carolinas and Georgia...and another moving into the Ohio River valley. An 
upper level ridge axis Washington moving from the plains to the MS River 
Valley. Surface fronts were located over the NE Gulf of Mexico...and 
the Ohio River valley. Satellite imagery showed areas of fog eroding 
in the Piedmont...while the NC mountain valleys showed less erosion. 


The northern shortwave is expected to reach the NC mountains by late 
this afternoon...but the surface front to the north is expected to 
stall over WV and Kentucky. Model time heights show limited low level 
moisture over our area. Some shallow instability will exist beneath 
a subsidence inversion aloft...but chances for precipitation remain 
quite low. High temperatures will run several degrees above normal 
in under slowly rising heights aloft. 


Previous discussion...a strong short wave and upper low diving down 
across the Great Lakes to the upper Ohio Valley will keep an upper 
trough axis along the East Coast through tonight. The pattern will 
support high pressure ridging down from the northwest with dry air 
gradually filtering in. For tonight...there could be more fog 
development...but mainly over the mountains temperatures were kept close to an 
average of the guidance...and slightly above normal. 


&& 


Short term /Wednesday through Thursday/... 
as of 310 am Tuesday...on Wednesday...a weak 500 mb ridge axis will 
slowly ripple east across the County Warning Area. At the surface...a weak Lee trough is 
forecast to develop during the afternoon...providing a weak pressure 
gradient across the southern appalachian region. Winds are expected 
to remain around 5 kts from the surface up to 850 mb. The combination of 
middle level ridging and weak flow across the terrain should favor dry 
conditions for most of the County Warning Area. However...a small pool of 
instability across the western NC mountains may support isolated late 
afternoon rain showers...highlighted with schc probability of precipitation. Temperatures are 
forecast to range around 5 degrees above normal. 


On Thursday...conditions will change very little from Wednesday. 
However...the center of a low level ridge will shift along the Atlantic 
coast through the daylight hours. As a result...low level winds across 
the County Warning Area will strengthen slightly from the south...reaching 15kts at 
850 mb. The south winds should advect Gulf moisture across the southern 
Appalachians. During the late afternoon...weak surface cape and south-southeast flow 
may support a few rain showers across the mountains high temperatures are 
forecast to range from the u70s within the mountain valleys to low 80s 
east. 


&& 


Long term /Thursday night through Monday/... 
as of 330 am Tuesday...medium range models time a surface cold front and 
associated l/west trough across the County Warning Area during the daylight hours Friday. 
0z GFS depicts the concurrence of several ingredients on Friday to 
support a pre-frontal band of convection. Between sunrise and middle 
morning...a band of 300 mb jet divergence will track overhead...running 
ahead of the trough axis. Veering low level flow will increase across the 
region as the cold front approaches. During the late 
afternoon...0-1km helicity is forecast to range from 150-200 m2/s2. 
In addition...cape values may range from 500-1000 j/kg. The forecast 
environment appears favorable for a band of convection to develop 
along and ahead of the cold front west of the mountains early Friday 
morning. The band should survive the passage across the 
mountains...supported by a broad field of cape...upper forcing...and low level 
shear. I will forecast probability of precipitation to range from cate to likely on Friday. 
Temperatures will be limited by cloud cover and high rainfall 
coverage...peaking around 5 degrees below normal. 


Saturday through Monday...high pressure will track from The 
Rockies...across the southern Mississippi River valley...off the 
East Coast. This airmass will feature dry and cool conditions. High 
pressure centered over the County Warning Area on Sunday will result in the coolest 
temperatures of the period. Morning lows on Sunday are forecast to range 
from the 40s across the mountains to low 50 east...highs around 70. 


&& 


Aviation /17z Tuesday through Saturday/... 
at kclt...model time heights suggest the predominant cloud layer 
will be around 4000 feet...but moisture may be too limited to support 
more than scattered low clouds...even at daybreak. Guidance supports 
another round of daybreak fog however. Confidence is too low to buy 
into IFR visibility at this time...so MVFR will be carried. VFR returns by 
middle morning. Generally light SW winds are expected. 


Elsewhere...cloud cover may increase with heating this afternoon... 
but not of sufficient coverage for a ceiling. Some limited instability 
wil be present...but not of a deep enough layer for convection...and 
rain chances will be too low to mention. Guidance supports another 
round of fog...but with confidence limited...only IFR visibility will be 
carried at kavl and khky...with MVFR at kand...and VFR at kgsp and 
kgmu. Winds will generally favor the S or SW at foothills site...and 
initially the north at kavl before it too sees winds back to the S. 


Outlook...fog/vsby concerns remain Thursday. A front will approach 
on Friday which could trigger some showers and thunderstorms...with 
associated restrictions possible. VFR returns on Saturday. 


Confidence table... 


17-23z 23-05z 05-11z 11-17z 
kclt high 100% high 100% high 91% high 94% 
kgsp high 100% high 100% high 97% high 94% 
kavl medium 62% low 55% low 58% low 57% 
khky high 100% high 94% high 91% high 97% 
kgmu high 100% high 100% high 100% high 100% 
kand high 100% high 100% high 83% high 97% 


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...Ned 
near term...jat/PM 
short term...Ned 
long term...Ned 
aviation...jat 












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