Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Mostly Cloudy

75°F

24°C

Humidity 89%
Wind Speed Vrbl 3 mph
Barometer 30.22 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 16 Sep 5:15 pm CDT
Extended Forecast for

2 Miles SW Carthage IL

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 5am.  Partly cloudy, with a low around 70. Northeast wind around 5 mph becoming southeast after midnight.

    Low: 70 °F

    Partly Cloudy
    then Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 11am.  Partly sunny, with a high near 85. Northeast wind around 5 mph becoming southeast in the afternoon.  Chance of precipitation is 50%.

    High: 85 °F

    Chance
    T-storms then
    Partly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers between 1am and 3am.  Mostly cloudy, with a low around 69. East wind around 5 mph.  Chance of precipitation is 20%.

    Low: 69 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers before 1pm. The rain could be heavy at times.  Mostly cloudy, then gradually becoming sunny, with a high near 86. East wind 5 to 10 mph becoming south in the afternoon.

    High: 86 °F

    Heavy Rain

  • Friday Night

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

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 68. Chance of precipitation is 70%.

    Low: 68 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm.  Mostly cloudy, with a high near 78. Chance of precipitation is 50%.

    High: 78 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 70. Northeast wind around 5 mph becoming southeast after midnight.
Thursday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 11am. Partly sunny, with a high near 85. Northeast wind around 5 mph becoming southeast in the afternoon. Chance of precipitation is 50%.
Thursday Night
A slight chance of showers between 1am and 3am. Mostly cloudy, with a low around 69. East wind around 5 mph. Chance of precipitation is 20%.
Friday
A 40 percent chance of showers before 1pm. The rain could be heavy at times. Mostly cloudy, then gradually becoming sunny, with a high near 86. East wind 5 to 10 mph becoming south in the afternoon.
Friday Night
Mostly clear, with a low around 72.
Saturday
Partly sunny, with a high near 88.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 50%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 74.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 60.
Tuesday
Partly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 75.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Carthage IL
 40.41°N 91.16°W (Elev. 673 ft)
5:16 pm CDT Sep 16, 2026
5pm CDT Sep 16, 2026-6pm CDT Sep 23, 2026
 
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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