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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Hazardous Weather Conditions

Current conditions at

Huntsville, Madison County Executive Airport (KMDQ)

Lat: 34.86°NLon: 86.56°WElev: 755ft.

Fair

71°F

22°C

Humidity 98%
Wind Speed NA
Barometer 30.19 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 18 Sep 5:35 am CDT
Extended Forecast for

3 Miles N Huntsville AL

Heat Advisory September 18, 05:49am until September 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 18, 05:49am until September 19, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Today

    High: 98 °F

    Hot

  • Tonight

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

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 97. Heat index values as high as 101. Calm wind.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 95. South wind around 5 mph becoming calm.

    High: 95 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 71. Chance of precipitation is 40%.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming north northeast around 5 mph.
Tonight
Mostly clear, with a low around 73. Calm wind.
Saturday
Sunny and hot, with a high near 97. Heat index values as high as 101. Calm wind.
Saturday Night
Partly cloudy, with a low around 72. Calm wind.
Sunday
Sunny, with a high near 95. South wind around 5 mph becoming calm.
Sunday Night
Mostly clear, with a low around 72.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.
Monday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 71. Chance of precipitation is 40%.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Huntsville AL
 34.76°N 86.61°W (Elev. 801 ft)
Last Update:
4:50 am CDT Sep 18, 2026
Forecast Valid:
5am CDT Sep 18, 2026-6pm CDT Sep 24, 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