Lake Effect Snow in the Lower Great Lakes; Unsettled Pattern in the Pacific Northwest

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. Lake Effect Snow Warnings have been issued. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest this afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Overcast

48°F

9°C

Humidity 46%
Wind Speed E 14 mph
Barometer 30.16 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 12 Feb 2:35 pm CST
Extended Forecast for

4 Miles SSW Denmark IA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 50. Southeast wind 5 to 10 mph.

    High: 50 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 30. Southeast wind around 5 mph.

    Low: 30 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 55. South wind around 5 mph becoming calm  in the afternoon.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 34. Calm wind becoming east around 5 mph.

    Low: 34 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 30 percent chance of rain after noon.  Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A 30 percent chance of rain before midnight.  Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain
    then Partly
    Cloudy

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 50. Southeast wind 5 to 10 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 30. Southeast wind around 5 mph.
Friday
Sunny, with a high near 55. South wind around 5 mph becoming calm in the afternoon.
Friday Night
Increasing clouds, with a low around 34. Calm wind becoming east around 5 mph.
Saturday
A 30 percent chance of rain after noon. Mostly cloudy, with a high near 53.
Saturday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 35.
Sunday
Sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 34.
Washington's Birthday
Partly sunny, with a high near 59.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Mostly cloudy, with a high near 63.
Tuesday Night
Mostly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Denmark IA
 40.7°N 91.35°W (Elev. 725 ft)
1:37 pm CST Feb 12, 2026
2pm CST Feb 12, 2026-6pm CST Feb 18, 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