National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Monroe County Airport (KMNV)

Lat: 35.55°NLon: 84.38°WElev: 1031ft.

Fair

73°F

23°C

Humidity 38%
Wind Speed S 16 G 26 mph
Barometer 29.98 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 20 Mar 5:15 pm EDT
Extended Forecast for

Madisonville TN

  • Tonight

    Tonight: Increasing clouds, with a low around 53. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 80. Southwest wind 5 to 10 mph.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly clear, with a low around 56. South wind around 5 mph.

    Low: 56 °F

    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 84. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. Southwest wind around 10 mph, with gusts as high as 25 mph.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 70. West wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 70 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. Northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 53. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 80. Southwest wind 5 to 10 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly clear, with a low around 56. South wind around 5 mph.
Sunday
Sunny, with a high near 84. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 58. Southwest wind around 10 mph, with gusts as high as 25 mph.
Monday
Partly sunny, with a high near 70. West wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 41. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 68.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 45.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 65.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
A 20 percent chance of showers. Mostly clear, with a low around 53.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Madisonville TN
 35.51°N 84.37°W (Elev. 1010 ft)
Last Update:
2:26 pm EDT Mar 20, 2026
Forecast Valid:
5pm EDT Mar 20, 2026-6pm EDT Mar 27, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation