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.

Mostly Cloudy

46°F

8°C

Humidity 44%
Wind Speed E 9 mph
Barometer 30.14 in (1021.1 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 12 Feb 5:54 pm CST
Extended Forecast for

Mendon IL

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 33. Southeast wind around 8 mph.

    Low: 33 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 57. South wind 5 to 8 mph becoming light and variable in the afternoon.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 36. Calm wind becoming east around 5 mph after midnight.

    Low: 36 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 50 percent chance of rain after noon. Cloudy, with a high near 53. Southeast wind 5 to 7 mph.

    High: 53 °F

    Cloudy then
    Chance Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 40. East wind around 7 mph becoming northeast after midnight. Chance of precipitation is 60%.

    Low: 40 °F

    Rain Likely
    then Chance
    Rain

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 33. Southeast wind around 8 mph.
Friday
Sunny, with a high near 57. South wind 5 to 8 mph becoming light and variable in the afternoon.
Friday Night
Increasing clouds, with a low around 36. Calm wind becoming east around 5 mph after midnight.
Saturday
A 50 percent chance of rain after noon. Cloudy, with a high near 53. Southeast wind 5 to 7 mph.
Saturday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 40. East wind around 7 mph becoming northeast after midnight. Chance of precipitation is 60%.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 37.
Washington's Birthday
Partly sunny, with a high near 61.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Mostly cloudy, with a high near 64.
Tuesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 53.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
A 20 percent chance of rain. Partly cloudy, with a low around 40.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 57.
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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:
5:11 pm CST Feb 12, 2026
Forecast Valid:
6pm CST Feb 12, 2026-6pm CST Feb 19, 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