Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Monroe County Airport (KMNV)

Lat: 35.55°NLon: 84.38°WElev: 1031ft.

Fair

88°F

31°C

Humidity 52%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 19 Aug 6:15 pm EDT
Extended Forecast for

4 Miles SSW Madisonville TN

  • Tonight

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

    Low: 70 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly before 9am.  Mostly sunny and hot, with a high near 90. Heat index values as high as 96. Calm wind becoming south around 5 mph.

    High: 90 °F

    Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, mainly before 2am.  Increasing clouds, with a low around 69. Calm wind.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 88. Calm wind.  Chance of precipitation is 60%.

    High: 88 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am.  Partly cloudy, with a low around 67. Calm wind.  Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 89. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 89 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 70. Calm wind.
Thursday
A 40 percent chance of showers and thunderstorms, mainly before 9am. Mostly sunny and hot, with a high near 90. Heat index values as high as 96. Calm wind becoming south around 5 mph.
Thursday Night
Showers and thunderstorms likely, mainly before 2am. Increasing clouds, with a low around 69. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 88. Calm wind. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 67. Calm wind. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 89. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 66. Calm wind.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 64.
Monday
Mostly sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 65.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Madisonville TN
 35.47°N 84.38°W (Elev. 1020 ft)
2:26 pm EDT Aug 19, 2026
6pm EDT Aug 19, 2026-6pm EDT Aug 26, 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