National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Heat Building in the Western U.S.

A cold front pressing east across the central U.S. will be the focus for areas of strong to severe thunderstorms and excessive rainfall through this weekend. Strong to severe thunderstorms my bring damaging winds, hail, and a few tornadoes while excessive rainfall may lead to areas of flooding. Heat will build across the western U.S. with heat-related watches, warnings, and advisories issued. Read More >

Hazardous Weather Conditions

Current conditions at

Union County Airport - Troy Shelton Field (K35A)

Lat: 34.69°NLon: 81.64°WElev: 610ft.

Fair

86°F

30°C

Humidity 68%
Wind Speed N 3 mph
Barometer 30.13 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 13 Jul 12:35 pm EDT
Extended Forecast for

4 Miles W Blair SC

  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 97. Heat index values as high as 103. Calm wind.

    High: 97 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 3pm. Increasing clouds and hot, with a high near 95. Heat index values as high as 104. Calm wind.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 5am, then a slight chance of showers. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 92. Light southeast wind. Chance of precipitation is 60%.

    High: 92 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

    Low: 71 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 91. Chance of precipitation is 60%.

    High: 91 °F

    Chance
    Showers then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 10pm. Mostly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 97. Heat index values as high as 103. Calm wind.
Tonight
Mostly clear, with a low around 72. Calm wind.
Monday
A 20 percent chance of showers and thunderstorms after 3pm. Increasing clouds and hot, with a high near 95. Heat index values as high as 104. Calm wind.
Monday Night
A chance of showers and thunderstorms before 5am, then a slight chance of showers. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 92. Light southeast wind. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Wednesday
A chance of showers, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 91. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 10pm. Mostly cloudy, with a low around 71.
Thursday
A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 72.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Blair SC
 34.51°N 81.42°W (Elev. 276 ft)
Last Update:
6:23 am EDT Jul 13, 2025
Forecast Valid:
12pm EDT Jul 13, 2025-6pm EDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation