Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Fog/Mist

41°F

5°C

Humidity 100%
Wind Speed NW 2 mph
Barometer 29.94 in
Dewpoint 41°F (5°C)
Visibility 4.00 mi
Last update 26 Dec 8:15 pm CST
Extended Forecast for

Fort Madison IA

Dense Fog Advisory December 26, 08:24pm until December 27, 12:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory December 26, 08:24pm until December 27, 12:00pm

    NOW until 12:00pm Sat

    Dense Fog Advisory

  • Tonight

    Low: 41 °F

    Patchy Fog

  • Saturday

    Saturday: Areas of fog before 7am.  Otherwise, mostly cloudy, with a high near 55. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 55 °F

    Areas Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: A chance of showers between midnight and 3am, then a chance of showers and thunderstorms after 3am.  Cloudy, with a temperature rising to around 61 by 5am. South wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before noon, then rain likely and possibly a thunderstorm between noon and 3pm, then rain likely after 3pm.  Cloudy, with a high near 57. Breezy, with a south wind 5 to 10 mph becoming northwest 15 to 25 mph in the afternoon. Winds could gust as high as 35 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 57 °F

    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 15. Blustery.

    Low: 15 °F

    Mostly Cloudy
    and Blustery

  • Monday

    Monday: Partly sunny, with a high near 23. Blustery.

    High: 23 °F

    Partly Sunny
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 16.

    Low: 16 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

Detailed Forecast

Tonight
Patchy fog after 9pm. Otherwise, cloudy, with a low around 41. Calm wind becoming southeast around 5 mph after midnight.
Saturday
Areas of fog before 7am. Otherwise, mostly cloudy, with a high near 55. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
A chance of showers between midnight and 3am, then a chance of showers and thunderstorms after 3am. Cloudy, with a temperature rising to around 61 by 5am. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Sunday
Showers likely and possibly a thunderstorm before noon, then rain likely and possibly a thunderstorm between noon and 3pm, then rain likely after 3pm. Cloudy, with a high near 57. Breezy, with a south wind 5 to 10 mph becoming northwest 15 to 25 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Mostly cloudy, with a low around 15. Blustery.
Monday
Partly sunny, with a high near 23. Blustery.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Partly cloudy, with a low around 26.
Wednesday
Partly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 14.
New Year's Day
Mostly sunny, with a high near 22.
Thursday Night
Mostly clear, with a low around 11.
Friday
Mostly sunny, with a high near 26.
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Madison IA
 40.61°N 91.36°W (Elev. 518 ft)
7:42 pm CST Dec 26, 2025
8pm CST Dec 26, 2025-6pm CST Jan 2, 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