Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast from parts of the central High Plains into the Upper Midwest, and across parts of the Northeast. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Current conditions at

Greenville Spartanburg International Airport (KGSP)

Lat: 34.91°NLon: 82.21°WElev: 955ft.

Overcast

82°F

28°C

Humidity 74%
Wind Speed W 3 mph
Barometer 30.13 in (1018.8 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 30 Jun 10:53 pm EDT
Extended Forecast for

3 Miles SE Glassy Mountain SC

  • Tonight

    Tonight: Partly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 102. Calm wind becoming east around 5 mph in the afternoon.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 74. Light and variable wind.

    Low: 74 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and hot, with a high near 97. Heat index values as high as 103. Calm wind becoming east around 6 mph in the afternoon.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 74. East southeast wind around 5 mph becoming calm  in the evening.

    Low: 74 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Independence Day

    Independence Day: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 74. Calm wind.
Wednesday
Sunny and hot, with a high near 95. Heat index values as high as 102. Calm wind becoming east around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 74. Light and variable wind.
Thursday
Sunny and hot, with a high near 97. Heat index values as high as 103. Calm wind becoming east around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 74. East southeast wind around 5 mph becoming calm in the evening.
Friday
Sunny and hot, with a high near 97.
Friday Night
Mostly clear, with a low around 74.
Independence Day
Sunny and hot, with a high near 97.
Saturday Night
Mostly clear, with a low around 74.
Sunday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Monday
Showers and thunderstorms likely. Mostly sunny, with a high near 90. Chance of precipitation is 60%.
Monday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 72. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Glassy Mountain SC
 35.1°N 82.29°W (Elev. 1047 ft)
6:54 pm EDT Jun 30, 2026
11pm EDT Jun 30, 2026-6pm EDT Jul 7, 2026
 
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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