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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Guntersville Municipal Airport (K8A1)

Lat: 34.4°NLon: 86.27°WElev: 600ft.

Fair

97°F

36°C

Humidity 39%
Wind Speed NE 9 mph
Barometer 30.12 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 18 Sep 1:35 pm CDT
Extended Forecast for

4 Miles SSE Grant AL

Heat Advisory September 18, 01:53pm until September 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 18, 01:53pm until September 19, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • This Afternoon

    High: 95 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Sunny, with a high near 96. Heat index values as high as 105. Calm wind.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 93. Calm wind.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A slight chance of showers between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 95. Heat index values as high as 106. Calm wind. Chance of precipitation is 20%.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 74. Calm wind.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Sunny, with a high near 96. Heat index values as high as 105. Calm wind.
Saturday Night
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. Calm wind.
Sunday
Sunny, with a high near 93. Calm wind.
Sunday Night
Partly cloudy, with a low around 73.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90.
Tuesday Night
A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Grant AL
 34.45°N 86.23°W (Elev. 594 ft)
Last Update:
1:50 pm CDT Sep 18, 2026
Forecast Valid:
1pm 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