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

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Fair

57°F

14°C

Humidity 48%
Wind Speed SE 8 mph
Barometer 29.79 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 7 Jan 4:35 pm CST
Extended Forecast for

Carthage IL

  • This Afternoon

    This Afternoon: Sunny, with a steady temperature around 53. South wind around 10 mph.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 41. South wind around 10 mph.

    Low: 41 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Rain, mainly after 10am. High near 59. Breezy, with a southeast wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 59 °F

    Rain and
    Breezy

  • Thursday Night

    Thursday Night: Rain likely before midnight. Mostly cloudy, with a low around 41. Breezy, with a south wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%.

    Low: 41 °F

    Rain Likely
    and Breezy
    then Mostly
    Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 45.

    High: 45 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 50 percent chance of rain after midnight. Cloudy, with a low around 33.

    Low: 33 °F

    Cloudy then
    Chance Rain

  • Saturday

    Saturday: A chance of rain and snow before noon, then a chance of snow. Partly sunny, with a high near 38. Chance of precipitation is 40%.

    High: 38 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a steady temperature around 53. South wind around 10 mph.
Tonight
Increasing clouds, with a low around 41. South wind around 10 mph.
Thursday
Rain, mainly after 10am. High near 59. Breezy, with a southeast wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Rain likely before midnight. Mostly cloudy, with a low around 41. Breezy, with a south wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%.
Friday
Mostly cloudy, with a high near 45.
Friday Night
A 50 percent chance of rain after midnight. Cloudy, with a low around 33.
Saturday
A chance of rain and snow before noon, then a chance of snow. Partly sunny, with a high near 38. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 19.
Sunday
Mostly sunny, with a high near 30.
Sunday Night
Mostly clear, with a low around 22.
Monday
Mostly sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
Partly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Carthage IL
 40.43°N 91.13°W (Elev. 676 ft)
Last Update:
3:16 pm CST Jan 7, 2026
Forecast Valid:
4pm CST Jan 7, 2026-6pm CST Jan 13, 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