Severe Thunderstorms for the Center of the Nation; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

A round of severe thunderstorms are forecast across areas of the Southern Plains, Mississippi Valley and Great Lakes this afternoon and tonight; The threat for flash flooding will also accompany these storms. The rainfall for the Great Lakes region could prolong the ongoing flooding. Where the rain is needed, the Southern High Plains, critical fire weather concerns through today. Read More >

Current conditions at

Greenville Downtown Airport (KGMU)

Lat: 34.85°NLon: 82.35°WElev: 1010ft.

Fair

65°F

18°C

Humidity 61%
Wind Speed Calm
Barometer 29.98 in (1014.0 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 18 Apr 3:53 am EDT
Extended Forecast for

Simpsonville SC

  • Today

    Today: Sunny, with a high near 90. Light and variable wind becoming southwest 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 58. West wind around 9 mph.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers, mainly before 10am.  Partly sunny, with a high near 68. North wind 13 to 16 mph, with gusts as high as 29 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Clear, with a low around 44. North wind 5 to 10 mph, with gusts as high as 18 mph.

    Low: 44 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 75. West northwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 44.

    Low: 44 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 90. Light and variable wind becoming southwest 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Partly cloudy, with a low around 58. West wind around 9 mph.
Sunday
A 30 percent chance of showers, mainly before 10am. Partly sunny, with a high near 68. North wind 13 to 16 mph, with gusts as high as 29 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Clear, with a low around 44. North wind 5 to 10 mph, with gusts as high as 18 mph.
Monday
Sunny, with a high near 75. West northwest wind 6 to 10 mph, with gusts as high as 18 mph.
Monday Night
Clear, with a low around 44.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Clear, with a low around 54.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 57.
Friday
Sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Simpsonville SC
 34.73°N 82.25°W (Elev. 810 ft)
2:24 am EDT Apr 18, 2026
4am EDT Apr 18, 2026-6pm EDT Apr 24, 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