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

Tri-Township Airport (KSFY)

Lat: 42.05°NLon: 90.11°WElev: 614ft.

Fog

46°F

8°C

Humidity 95%
Wind Speed S 3 mph
Barometer 29.74 in
Dewpoint 44°F (7°C)
Visibility 0.25 mi
Last update 10 Mar 4:15 am CDT
Extended Forecast for

Mount Carroll IL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 10am. Otherwise, increasing clouds, with a high near 57. East wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 57 °F

    Patchy Fog
    then Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then a chance of showers. Low around 36. North wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 36 °F

    Showers then
    Chance
    T-storms

  • Wednesday

    Wednesday: Rain likely, mainly before 1pm. Mostly cloudy, with a high near 41. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    High: 41 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming clear, with a low around 24. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 36. Breezy. Chance of precipitation is 60%.

    Low: 36 °F

    Rain Likely
    and Breezy

  • Friday

    Friday: Partly sunny, with a high near 48. Breezy.

    High: 48 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 50.

    High: 50 °F

    Cloudy

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 10am. Otherwise, increasing clouds, with a high near 57. East wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
Showers and thunderstorms before 4am, then a chance of showers. Low around 36. North wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Wednesday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 41. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Wednesday Night
Mostly cloudy, then gradually becoming clear, with a low around 24. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 48.
Thursday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 36. Breezy. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 48. Breezy.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
Cloudy, with a high near 50.
Saturday Night
A chance of rain before 1am, then rain and snow likely. Cloudy, with a low around 32. Chance of precipitation is 60%.
Sunday
Rain and snow likely. Cloudy, with a high near 41. Breezy. Chance of precipitation is 70%.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 14.
Monday
Partly sunny, with a high near 27.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Carroll IL
 42.09°N 89.98°W (Elev. 778 ft)
Last Update:
4:16 am CDT Mar 10, 2026
Forecast Valid:
4am CDT Mar 10, 2026-6pm CDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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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