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

Hazardous Weather Conditions

Current conditions at

Greenville Downtown Airport (KGMU)

Lat: 34.85°NLon: 82.35°WElev: 1010ft.

A Few Clouds

34°C

94°F

Humidity 43%
Wind Speed Vrbl 7 km/h
Barometer 1015.9 mb (30.04 in)
Dewpoint 20°C (68°F)
Visibility 16 km
Heat Index37°C (99°F)
Last update 14 Jul 4:53 pm EDT
Extended Forecast for

Simpsonville SC

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 35. Calm wind.

    High: 35 °C

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly between 1am and 2am. Partly cloudy, with a low around 23. Calm wind. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Low: 23 °C

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 33. Calm wind becoming south southeast 5 to 10 km/h in the afternoon. Chance of precipitation is 60%. New rainfall amounts between 2.5 and 5 mm possible.

    High: 33 °C

    Partly Sunny
    then T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 2am, then a chance of showers. Mostly cloudy, with a low around 22. East southeast wind 3 to 8 km/h. Chance of precipitation is 60%. New rainfall amounts between 7.5 mm and 1 cm possible.

    Low: 22 °C

    T-storms
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 32. South wind 5 to 13 km/h. Chance of precipitation is 60%.

    High: 32 °C

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 2am, then a chance of showers. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.

    Low: 22 °C

    T-storms
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 32. Chance of precipitation is 50%.

    High: 32 °C

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before 10pm. Mostly cloudy, with a low around 23.

    Low: 23 °C

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 33.

    High: 33 °C

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 35. Calm wind.
Tonight
A 30 percent chance of showers and thunderstorms, mainly between 1am and 2am. Partly cloudy, with a low around 23. Calm wind. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Tuesday
Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 33. Calm wind becoming south southeast 5 to 10 km/h in the afternoon. Chance of precipitation is 60%. New rainfall amounts between 2.5 and 5 mm possible.
Tuesday Night
Showers and thunderstorms likely before 2am, then a chance of showers. Mostly cloudy, with a low around 22. East southeast wind 3 to 8 km/h. Chance of precipitation is 60%. New rainfall amounts between 7.5 mm and 1 cm possible.
Wednesday
Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 32. South wind 5 to 13 km/h. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely before 2am, then a chance of showers. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Thursday
A chance of showers between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 32. Chance of precipitation is 50%.
Thursday Night
A 40 percent chance of showers and thunderstorms before 10pm. Mostly cloudy, with a low around 23.
Friday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 33.
Friday Night
A 30 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 23.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 34.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 23.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 34.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 23.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 34.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Simpsonville SC
 34.71°N 82.25°W (Elev. 860 m)
Last Update:
5:11 pm EDT Jul 14, 2025
Forecast Valid:
5pm EDT Jul 14, 2025-6pm EDT Jul 21, 2025
 
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