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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Greenville Downtown Airport (KGMU)

Lat: 34.85°NLon: 82.35°WElev: 1010ft.

Fair

73°F

23°C

Humidity 87%
Wind Speed Calm
Barometer 30.01 in (1015.0 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 28 Aug 1:53 am EDT
Extended Forecast for

Mauldin SC

  • Overnight

    Overnight: Mostly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 88. Calm wind becoming southeast around 5 mph in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Patchy Fog
    then Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 1am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 68. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Showers
    Likely then
    Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: Showers and thunderstorms likely before 4pm, then a slight chance of showers between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 85. Northeast wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 2am. Mostly cloudy, with a low around 69. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 70. Calm wind.
Friday
A 40 percent chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 88. Calm wind becoming southeast around 5 mph in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely, mainly before 1am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 68. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and thunderstorms likely before 4pm, then a slight chance of showers between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 85. Northeast wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 2am. Mostly cloudy, with a low around 69. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 71.
Tuesday
Sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Sunny and hot, with a high near 95.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
Sunny and hot, with a high near 96.
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ABOUT THIS FORECAST

 
Point Forecast:
Mauldin SC
 34.78°N 82.3°W (Elev. 896 ft)
Last Update:
2:23 am EDT Aug 28, 2026
Forecast Valid:
2am EDT Aug 28, 2026-6pm EDT Sep 3, 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