Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Current conditions at

Greenville Downtown Airport (KGMU)

Lat: 34.85°NLon: 82.35°WElev: 1010ft.

Fair

79°F

26°C

Humidity 77%
Wind Speed Calm
Barometer 30.09 in (1017.6 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 29 Jun 7:53 am EDT
Extended Forecast for

Fountain Inn SC

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 2pm.  Increasing clouds, with a high near 93. Calm wind becoming north northeast around 6 mph.

    High: 93 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 73. Light east northeast wind.

    Low: 73 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 93. East northeast wind 3 to 6 mph.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 73. Light east wind.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 94. Light and variable wind.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 93. Calm wind becoming north northeast around 6 mph.
Tonight
Partly cloudy, with a low around 73. Light east northeast wind.
Tuesday
Sunny, with a high near 93. East northeast wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 73. Light east wind.
Wednesday
Sunny, with a high near 94. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
Sunny and hot, with a high near 95.
Thursday Night
Mostly clear, with a low around 73.
Friday
Sunny and hot, with a high near 95.
Friday Night
Mostly clear, with a low around 74.
Independence Day
Sunny and hot, with a high near 96.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
Fountain Inn SC
 34.71°N 82.23°W (Elev. 850 ft)
6:34 am EDT Jun 29, 2026
7am EDT Jun 29, 2026-6pm EDT Jul 5, 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