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

Quincy Regional Airport-Baldwin Field (KUIN)

Lat: 39.94°NLon: 91.2°WElev: 759ft.

Fair

41°F

5°C

Humidity 55%
Wind Speed NW 7 mph
Barometer 29.78 in (1008.9 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 25 Feb 9:54 am CST
Extended Forecast for

Mendon IL

  • Today

    Today: Increasing clouds, with a high near 47. North wind 5 to 8 mph.

    High: 47 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Rain likely, possibly mixing with snow after midnight, then gradually ending. Mostly cloudy, with a low around 30. Northeast wind 5 to 7 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 30 °F

    Rain Likely
    then Chance
    Rain/Snow

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 53. East wind 6 to 8 mph becoming west in the afternoon.

    High: 53 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Clear, with a low around 34. South wind 6 to 9 mph.

    Low: 34 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 68. Southwest wind 8 to 16 mph, with gusts as high as 28 mph.

    High: 68 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of snow after midnight. Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A slight chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 40%.

    High: 38 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

Detailed Forecast

Today
Increasing clouds, with a high near 47. North wind 5 to 8 mph.
Tonight
Rain likely, possibly mixing with snow after midnight, then gradually ending. Mostly cloudy, with a low around 30. Northeast wind 5 to 7 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 53. East wind 6 to 8 mph becoming west in the afternoon.
Thursday Night
Clear, with a low around 34. South wind 6 to 9 mph.
Friday
Sunny, with a high near 68. Southwest wind 8 to 16 mph, with gusts as high as 28 mph.
Friday Night
Mostly clear, with a low around 35.
Saturday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 51.
Saturday Night
A 20 percent chance of snow after midnight. Partly cloudy, with a low around 25.
Sunday
A slight chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 40%.
Sunday Night
A chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 50%.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mendon IL
 40.08°N 91.29°W (Elev. 702 ft)
Last Update:
10:26 am CST Feb 25, 2026
Forecast Valid:
10am CST Feb 25, 2026-6pm CST Mar 3, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation