Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Current conditions at

Greenville Downtown Airport (KGMU)

Lat: 34.85°NLon: 82.35°WElev: 1010ft.

Fair

93°F

34°C

Humidity 47%
Wind Speed NA
Barometer 30.09 in (1017.5 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 29 Jun 2:53 pm EDT
Extended Forecast for

5 Miles SW Slater-Marietta SC

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 93. Heat index values as high as 100. Calm wind.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms between 1pm and 2pm.  Mostly sunny, with a high near 93. Heat index values as high as 100. Light east wind.  Chance of precipitation is 20%.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

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

    Low: 74 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95. Light and variable wind.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

  • Thursday

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

    High: 97 °F

    Hot

  • Thursday Night

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

    Low: 74 °F

    Mostly Clear

  • Friday

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

    High: 97 °F

    Hot

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. Heat index values as high as 100. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Partly cloudy, with a low around 75. Calm wind.
Tuesday
A slight chance of showers and thunderstorms between 1pm and 2pm. Mostly sunny, with a high near 93. Heat index values as high as 100. Light east wind. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 74. Light and variable wind.
Wednesday
Sunny and hot, with a high near 95. Light and variable wind.
Wednesday Night
Clear, with a low around 75.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Mostly clear, with a low around 74.
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 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Slater-Marietta SC
 34.98°N 82.55°W (Elev. 1001 ft)
2:24 pm EDT Jun 29, 2026
3pm EDT Jun 29, 2026-6pm EDT Jul 6, 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