Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Union County Airport - Troy Shelton Field (K35A)

Lat: 34.69°NLon: 81.64°WElev: 610ft.

Fair

89°F

32°C

Humidity 54%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 19 Aug 12:55 pm EDT
Extended Forecast for

5 Miles W Blair SC

  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 95. Calm wind.

    High: 95 °F

    Hot

  • Tonight

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

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97. Heat index values as high as 102. Calm wind.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before midnight.  Clear during the early evening, then becoming mostly cloudy, with a low around 72. Calm wind.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm.  Mostly sunny, with a high near 93. Calm wind.  Chance of precipitation is 60%.

    High: 93 °F

    Mostly Sunny
    then T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 1am. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a low around 69. Chance of precipitation is 70%.

    Low: 69 °F

    Heavy Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 95. Calm wind.
Tonight
Mostly clear, with a low around 72. Calm wind.
Thursday
Sunny and hot, with a high near 97. Heat index values as high as 102. Calm wind.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before midnight. Clear during the early evening, then becoming mostly cloudy, with a low around 72. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm. Mostly sunny, with a high near 93. Calm wind. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely, mainly before 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Saturday
Mostly sunny, with a high near 90.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 68.
Monday
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 69.
Tuesday
Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Blair SC
 34.49°N 81.43°W (Elev. 348 ft)
6:53 am EDT Aug 19, 2026
1pm EDT Aug 19, 2026-6pm EDT Aug 25, 2026
 
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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