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

Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Fair

9°F

-13°C

Humidity 61%
Wind Speed SW 3 mph
Barometer 30.38 in
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Last update 27 Jan 9:55 pm CST
Extended Forecast for

2 Miles ENE Carthage IL

  • Tonight

    Tonight: Mostly clear, with a low around 3. Wind chill values as low as -10. Southwest wind around 5 mph.

    Low: 3 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 25. Wind chill values as low as -5. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 25 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 6. Wind chill values as low as -5. Northwest wind around 5 mph becoming north after midnight.

    Low: 6 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 17. Wind chill values as low as -5. North wind around 5 mph.

    High: 17 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 1.

    Low: 1 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 15.

    High: 15 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 1.

    Low: 1 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 20.

    High: 20 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 5.

    Low: 5 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 3. Wind chill values as low as -10. Southwest wind around 5 mph.
Wednesday
Partly sunny, with a high near 25. Wind chill values as low as -5. West wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Increasing clouds, with a low around 6. Wind chill values as low as -5. Northwest wind around 5 mph becoming north after midnight.
Thursday
Mostly cloudy, with a high near 17. Wind chill values as low as -5. North wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 1.
Friday
Mostly sunny, with a high near 15.
Friday Night
Partly cloudy, with a low around 1.
Saturday
Sunny, with a high near 20.
Saturday Night
Partly cloudy, with a low around 5.
Sunday
A 30 percent chance of snow after noon. Partly sunny, with a high near 26.
Sunday Night
Mostly cloudy, with a low around 16.
Monday
Partly sunny, with a high near 31.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
Partly sunny, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Carthage IL
 40.43°N 91.1°W (Elev. 676 ft)
Last Update:
8:46 pm CST Jan 27, 2026
Forecast Valid:
10pm CST Jan 27, 2026-6pm CST Feb 3, 2026
 
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