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

Hazardous Weather Conditions

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Fair

36°F

2°C

Humidity 81%
Wind Speed Calm
Barometer 30.29 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 20 Apr 2:35 am CDT
Extended Forecast for

2 Miles ENE Carthage IL

Freeze Warning April 20, 02:57am until April 20, 09:00am
Click here for hazard details and duration
Freeze Warning
  •  
    Freeze Warning April 20, 02:57am until April 20, 09:00am

    NOW until 9:00am Mon

    Freeze Warning

  • Overnight

    Low: 37 °F

    Areas Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 65. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 65 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 51. South wind around 10 mph, with gusts as high as 25 mph.

    Low: 51 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 79. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 79 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 80. Breezy.

    High: 80 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

Detailed Forecast

Overnight
Areas of frost after 4am. Otherwise, mostly clear, with a steady temperature around 37. Northeast wind around 5 mph.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 65. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Increasing clouds, with a low around 51. South wind around 10 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 79. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 80. Breezy.
Thursday Night
Showers and possibly a thunderstorm. Low around 58. Breezy. Chance of precipitation is 90%.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 69.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Mostly cloudy, with a low around 46.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Carthage IL
 40.43°N 91.1°W (Elev. 676 ft)
Last Update:
2:21 am CDT Apr 20, 2026
Forecast Valid:
2am CDT Apr 20, 2026-6pm CDT Apr 26, 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