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

Greenville Spartanburg International Airport (KGSP)

Lat: 34.91°NLon: 82.21°WElev: 955ft.

Partly Cloudy

86°F

30°C

Humidity 57%
Wind Speed NE 6 mph
Barometer 30.04 in (1015.8 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 19 Aug 11:53 am EDT
Extended Forecast for

Startex SC

  • Today

    Today: Sunny, with a high near 93. Northeast wind around 6 mph becoming calm  in the afternoon.

    High: 93 °F

    Sunny

  • 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 95. Heat index values as high as 102. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 95 °F

    Hot

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 71. Light and variable wind.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 5pm.  Partly sunny, with a high near 91. North northeast wind around 5 mph becoming southeast in the afternoon.  Chance of precipitation is 60%.

    High: 91 °F

    Mostly Sunny
    then T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before midnight.  Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    T-storms
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 93. Northeast wind around 6 mph becoming calm in the afternoon.
Tonight
Mostly clear, with a low around 72. Calm wind.
Thursday
Sunny and hot, with a high near 95. Heat index values as high as 102. Calm wind becoming west northwest around 5 mph in the afternoon.
Thursday Night
A 40 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71. Light and variable wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 91. North northeast wind around 5 mph becoming southeast in the afternoon. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 90.
Saturday Night
Partly cloudy, with a low around 68.
Sunday
Sunny, with a high near 91.
Sunday Night
Mostly clear, with a low around 67.
Monday
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Mostly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Startex SC
 34.9°N 82.09°W (Elev. 804 ft)
6:53 am EDT Aug 19, 2026
11am EDT Aug 19, 2026-6pm EDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database