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

Areas of Heavy to Excessive Rainfall Which May Bring Flooding

An area of thunderstorms and heavy rains may produce flash flooding in the central and southern Plains, specifically southeast Kansas, into the morning. Monsoon moisture will continue to produce areas of heavy rainfall and the potential for flooding and debris flows across the northern Intermountain West. Heavy rain continues across portions of southwest and south-central Alaska. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Fair

66°F

19°C

Humidity 68%
Wind Speed SE 7 mph
Barometer 30.14 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 27 Aug 9:35 pm CDT
Extended Forecast for

2 Miles WSW Pontoosuc IL

  • Tonight

    Tonight: Mostly clear, with a low around 59. South wind around 5 mph.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83. Southwest wind around 5 mph becoming northwest in the afternoon.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. Calm wind becoming east around 5 mph after midnight.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 78. East wind around 5 mph.

    High: 78 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 59. South wind around 5 mph.
Thursday
Sunny, with a high near 83. Southwest wind around 5 mph becoming northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 62. Calm wind becoming east around 5 mph after midnight.
Friday
Mostly sunny, with a high near 78. East wind around 5 mph.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Mostly cloudy, with a low around 61.
Sunday
Partly sunny, with a high near 77.
Sunday Night
Mostly cloudy, with a low around 59.
Labor Day
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Pontoosuc IL
 40.61°N 91.24°W (Elev. 653 ft)
Last Update:
8:15 pm CDT Aug 27, 2025
Forecast Valid:
9pm CDT Aug 27, 2025-6pm CDT Sep 3, 2025
 
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