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Hazardous Weather Conditions

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Mostly Cloudy

77°F

25°C

Humidity 89%
Wind Speed S 7 mph
Barometer 30.03 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 6 Aug 4:55 pm CDT
Extended Forecast for

2 Miles WSW Pontoosuc IL

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, increasing clouds, with a low around 71. South wind around 5 mph becoming calm.

    Low: 71 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 86 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 11pm. Increasing clouds, with a low around 72. West wind around 5 mph.

    Low: 72 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 85. Northwest wind around 5 mph becoming southeast in the afternoon.

    High: 85 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 73 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.

    High: 88 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 71. South wind around 5 mph becoming calm.
Friday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 11pm. Increasing clouds, with a low around 72. West wind around 5 mph.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 85. Northwest wind around 5 mph becoming southeast in the afternoon.
Saturday Night
A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 76.
Monday
Mostly sunny, with a high near 89.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75.
Tuesday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Wednesday
A 50 percent chance of showers. Partly sunny, with a high near 84.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 70.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Pontoosuc IL
 40.61°N 91.24°W (Elev. 653 ft)
Last Update:
2:21 pm CDT Aug 6, 2026
Forecast Valid:
5pm CDT Aug 6, 2026-6pm CDT Aug 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation