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

Greenville Downtown Airport (KGMU)

Lat: 34.85°NLon: 82.35°WElev: 1010ft.

Overcast

75°F

24°C

Humidity 96%
Wind Speed S 6 mph
Barometer 29.84 in (1009.4 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Last update 2 Aug 9:53 am EDT
Extended Forecast for

Simpsonville SC

  • Today

    Today: Showers and possibly a thunderstorm before 4pm, then showers and thunderstorms likely between 4pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 83. South southwest wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Showers
    Likely then
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 70. South southwest wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    T-storms
    Likely then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 86. South southwest wind 5 to 9 mph.

    High: 86 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 70. South southwest wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 85. Calm wind becoming south southeast around 6 mph in the afternoon. Chance of precipitation is 80%.

    High: 85 °F

    Chance
    Showers then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.

    Low: 69 °F

    T-storms
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers between 9am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 50%.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Showers and possibly a thunderstorm before 4pm, then showers and thunderstorms likely between 4pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 83. South southwest wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 70. South southwest wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Partly sunny, with a high near 86. South southwest wind 5 to 9 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 70. South southwest wind around 5 mph becoming calm in the evening.
Tuesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 85. Calm wind becoming south southeast around 6 mph in the afternoon. Chance of precipitation is 80%.
Tuesday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Wednesday
A chance of showers between 9am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 50%.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 70.
Thursday
A 50 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87.
Thursday Night
A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 70.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Simpsonville SC
 34.73°N 82.25°W (Elev. 810 ft)
Last Update:
5:59 am EDT Aug 2, 2026
Forecast Valid:
10am EDT Aug 2, 2026-6pm EDT Aug 8, 2026
 
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