Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Hazardous Weather Conditions

Current conditions at

Greeneville-Greene County Municipal Airport (KGCY)

Lat: 36.2°NLon: 82.81°WElev: 1608ft.

Mostly Cloudy

72°F

22°C

Humidity 94%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 29 Jun 4:15 am EDT
Extended Forecast for

3 Miles SSW Surgoinsville TN

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly between 2pm and 4pm.  Mostly sunny and hot, with a high near 90. Heat index values as high as 102. Calm wind.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 93. Heat index values as high as 107. Calm wind.

    High: 93 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 96. Calm wind.

    High: 96 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 2pm.  Sunny and hot, with a high near 97. Calm wind.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 2am.  Mostly clear, with a low around 71.

    Low: 71 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 2pm.  Sunny and hot, with a high near 95.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 102. Calm wind.
Tonight
Partly cloudy, with a low around 70. Calm wind.
Tuesday
Mostly sunny and hot, with a high near 93. Heat index values as high as 107. Calm wind.
Tuesday Night
Mostly clear, with a low around 71. Calm wind.
Wednesday
Sunny and hot, with a high near 96. Calm wind.
Wednesday Night
Mostly clear, with a low around 72. Calm wind.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 97. Calm wind.
Thursday Night
A 20 percent chance of showers and thunderstorms before 2am. Mostly clear, with a low around 71.
Friday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 95.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly clear, with a low around 71.
Independence Day
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 94.
Saturday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Surgoinsville TN
 36.43°N 82.89°W (Elev. 1171 ft)
2:26 am EDT Jun 29, 2026
4am EDT Jun 29, 2026-6pm EDT Jul 5, 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