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

Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England. Read More >

Current conditions at

Greenville Downtown Airport (KGMU)

Lat: 34.85°NLon: 82.35°WElev: 1010ft.

Fair

76°F

24°C

Humidity 60%
Wind Speed N 9 mph
Barometer 29.93 in (1012.1 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 30 Jul 12:53 am EDT
Extended Forecast for

Donaldson Center Airport SC

  • Overnight

    Overnight: Clear, with a low around 67. North northeast wind 5 to 7 mph.

    Low: 67 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 88. North wind around 6 mph.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. North northeast wind around 7 mph.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 91. Northeast wind around 6 mph becoming light and variable in the afternoon.

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 71. Light east southeast wind.

    Low: 71 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely after 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 84. Chance of precipitation is 90%.

    High: 84 °F

    Showers
    Likely then
    T-storms

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 69. Chance of precipitation is 80%.

    Low: 69 °F

    T-storms then
    Showers

Detailed Forecast

Overnight
Clear, with a low around 67. North northeast wind 5 to 7 mph.
Thursday
Sunny, with a high near 88. North wind around 6 mph.
Thursday Night
Mostly clear, with a low around 67. North northeast wind around 7 mph.
Friday
Sunny, with a high near 91. Northeast wind around 6 mph becoming light and variable in the afternoon.
Friday Night
Partly cloudy, with a low around 71. Light east southeast wind.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 90.
Saturday Night
A chance of showers and thunderstorms, then showers likely after 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Sunday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 84. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 69. Chance of precipitation is 80%.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Donaldson Center Airport SC
 34.76°N 82.36°W (Elev. 896 ft)
Last Update:
7:10 pm EDT Jul 29, 2026
Forecast Valid:
1am EDT Jul 30, 2026-6pm EDT Aug 5, 2026
 
Forecast Discussion
 
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Additional Resources

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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