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

Knoxville Downtown Airport (KDKX)

Lat: 35.97°NLon: 83.87°WElev: 827ft.

Fog

73°F

23°C

Humidity 100%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 73°F (23°C)
Visibility 0.25 mi
Last update 29 Jun 3:15 am EDT
Extended Forecast for

3 Miles N Seymour TN

  • Overnight

    Overnight: A slight chance of showers before 4am, then a slight chance of showers after 5am.  Mostly cloudy, with a low around 72. Calm wind.  Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly before 2pm.  Mostly sunny and hot, with a high near 90. Heat index values as high as 98. Calm wind.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 92. Heat index values as high as 102. Calm wind.

    High: 92 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 94. Calm wind.

    High: 94 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 2pm.  Sunny and hot, with a high near 95.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Mostly clear, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A slight chance of showers before 4am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 20%.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 2pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 98. Calm wind.
Monday Night
Mostly clear, with a low around 73. Calm wind.
Tuesday
Mostly sunny and hot, with a high near 92. Heat index values as high as 102. Calm wind.
Tuesday Night
Mostly clear, with a low around 74. Calm wind.
Wednesday
Sunny and hot, with a high near 94. Calm wind.
Wednesday Night
Mostly clear, with a low around 74. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 95.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly clear, with a low around 73.
Friday
A 40 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 94.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 73.
Independence Day
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Seymour TN
 35.9°N 83.78°W (Elev. 1260 ft)
2:26 am EDT Jun 29, 2026
3am 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