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

Severe Thunderstorm and Heavy Rainfall Threat Tonight; Heat Continues on Tuesday Across the Eastern U.S.

Severe weather and flash flooding threats continue across the Central Plains and Midwest into tonight. Very large hail, strong tornadoes and damaging winds are expected. An early season heat wave will continue to challenge temperature records across the eastern U.S. through Wednesday. Read More >

Current conditions at

Monroe County Airport (KMNV)

Lat: 35.55°NLon: 84.38°WElev: 1031ft.

77°F

25°C

Humidity 61%
Wind Speed Calm
Barometer 30.19 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 18 May 10:55 pm EDT
Extended Forecast for

2 Miles SW Madisonville TN

  • Tonight

    Tonight: Mostly clear, with a low around 65. South wind around 5 mph.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89. South wind around 5 mph.

    High: 89 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 64. Southwest wind around 5 mph becoming calm.

    Low: 64 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 83. Calm wind becoming southwest around 5 mph. Chance of precipitation is 80%.

    High: 83 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Low around 63. Calm wind. Chance of precipitation is 80%.

    Low: 63 °F

    Showers then
    Chance
    T-storms

  • Friday

    Friday: Showers likely, then showers and possibly a thunderstorm after 8am. High near 82. Chance of precipitation is 80%.

    High: 82 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 63. Chance of precipitation is 80%.

    Low: 63 °F

    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 65. South wind around 5 mph.
Tuesday
Mostly sunny, with a high near 89. South wind around 5 mph.
Tuesday Night
Mostly cloudy, with a low around 64. Southwest wind around 5 mph becoming calm.
Wednesday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 40%.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 83. Calm wind becoming southwest around 5 mph. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Low around 63. Calm wind. Chance of precipitation is 80%.
Friday
Showers likely, then showers and possibly a thunderstorm after 8am. High near 82. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 63. Chance of precipitation is 80%.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 8am. Mostly cloudy, with a high near 82. Chance of precipitation is 70%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Sunday
Showers and thunderstorms likely. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Memorial Day
Showers and thunderstorms likely. Partly sunny, with a high near 84. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Madisonville TN
 35.51°N 84.37°W (Elev. 1010 ft)
Last Update:
7:06 pm EDT May 18, 2026
Forecast Valid:
11pm EDT May 18, 2026-6pm EDT May 25, 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