Areas of Excessive Rainfall and Extreme Heat; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding Tuesday. Hot to extremely hot temperatures are in place through Tuesday across much of the western U.S. and northern New England. Tropical Storm Erin is forecast to become a Major Hurricane by this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

Current conditions at

Fort Payne, Isbell Field Airport (K4A9)

Lat: 34.47°NLon: 85.72°WElev: 876ft.

Overcast

77°F

25°C

Humidity 87%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 12 Aug 3:55 am CDT
Extended Forecast for

Collinsville AL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers and thunderstorms, mainly before 4pm. Some of the storms could produce heavy rainfall.  High near 82. Calm wind becoming southeast around 5 mph in the morning.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 82 °F

    Chance
    T-storms then
    Heavy Rain

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 72. Calm wind.  New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 1pm.  Mostly cloudy, with a high near 86. Calm wind becoming south southwest around 5 mph.  Chance of precipitation is 70%.

    High: 86 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 71. Calm wind.  Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 10am.  Partly sunny, with a high near 88. Chance of precipitation is 50%.

    High: 88 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Calm wind.
Tuesday
Showers and thunderstorms, mainly before 4pm. Some of the storms could produce heavy rainfall. High near 82. Calm wind becoming southeast around 5 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Calm wind. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 86. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 70%.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 88. Chance of precipitation is 50%.
Thursday Night
Partly cloudy, with a low around 71.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90.
Friday Night
Partly cloudy, with a low around 71.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 72.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 91.
Sunday Night
Mostly clear, with a low around 72.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Collinsville AL
 34.27°N 85.86°W (Elev. 804 ft)
3:50 am CDT Aug 12, 2025
4am CDT Aug 12, 2025-6pm CDT Aug 18, 2025
 
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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