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

Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk into the Weekend on the East Coast; Flash Flooding Possible in the Southeast

A dangerous, record heat wave continues for the Desert Southwest and the Central Valley of California through Saturday, and the Pacific Northwest through Tuesday. Coastal flooding is expected through tonight at high tide along the Eastern Seaboard from Erin, while the high rip current risk and dangerous surf continue through the weekend. Flash flooding possible today in Georgia and South Carolina. Read More >

Hazardous Weather Conditions

Current conditions at

Greenville Downtown Airport (KGMU)

Lat: 34.85°NLon: 82.35°WElev: 1010ft.

Overcast

77°F

25°C

Humidity 85%
Wind Speed NE 9 mph
Barometer 30.06 in (1016.8 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 22 Aug 12:53 pm EDT
Extended Forecast for

Greenville SC

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly between 3pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Cloudy, with a high near 79. East northeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 4am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 68. Northeast wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth 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, mainly between 3pm and 4pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 80. East wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then T-storms
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms between 9pm and 11pm, then a slight chance of showers. Mostly cloudy, with a low around 68. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 40%.

    High: 83 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly between 3pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Cloudy, with a high near 79. East northeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 4am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 68. Northeast wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and thunderstorms likely, mainly between 3pm and 4pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 80. East wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms between 9pm and 11pm, then a slight chance of showers. Mostly cloudy, with a low around 68. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A slight chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 40%.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66.
Monday
Sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Mostly cloudy, with a low around 61.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Greenville SC
 34.83°N 82.38°W (Elev. 883 ft)
Last Update:
12:44 pm EDT Aug 22, 2025
Forecast Valid:
1pm EDT Aug 22, 2025-6pm EDT Aug 28, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation