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

23°F

-5°C

Humidity 85%
Wind Speed S 9 mph
Barometer 30.01 in (1017.3 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 2 Dec 6:54 pm CST
Extended Forecast for

Mendon IL

  • Tonight

    Tonight: Increasing clouds, with a temperature rising to around 27 by 4am. South wind 8 to 10 mph.

    Low: 21 °F⇑

    Increasing
    Clouds

  • Wednesday

    Wednesday: A 30 percent chance of snow, mainly after 3pm. Cloudy, with a high near 35. Southwest wind 8 to 13 mph becoming north in the afternoon. Winds could gust as high as 22 mph.

    High: 35 °F

    Cloudy then
    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 3. North wind 8 to 14 mph, with gusts as high as 23 mph.

    Low: 3 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny and cold, with a high near 16. North wind 5 to 7 mph becoming calm in the morning.

    High: 16 °F

    Cold

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 6. Light southeast wind becoming south 5 to 9 mph in the evening.

    Low: 6 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 31.

    High: 31 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Chance Snow

Detailed Forecast

Tonight
Increasing clouds, with a temperature rising to around 27 by 4am. South wind 8 to 10 mph.
Wednesday
A 30 percent chance of snow, mainly after 3pm. Cloudy, with a high near 35. Southwest wind 8 to 13 mph becoming north in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Mostly cloudy, with a low around 3. North wind 8 to 14 mph, with gusts as high as 23 mph.
Thursday
Sunny and cold, with a high near 16. North wind 5 to 7 mph becoming calm in the morning.
Thursday Night
Mostly clear, with a low around 6. Light southeast wind becoming south 5 to 9 mph in the evening.
Friday
Mostly sunny, with a high near 31.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Mostly cloudy, with a high near 31.
Saturday Night
A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 22.
Sunday
A 20 percent chance of snow. Mostly cloudy, with a high near 28.
Sunday Night
Mostly cloudy, with a low around 13.
Monday
Mostly cloudy, with a high near 30.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 23.
Tuesday
Partly sunny, with a high near 36.
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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:
4:51 pm CST Dec 2, 2025
Forecast Valid:
7pm CST Dec 2, 2025-6pm CST Dec 9, 2025
 
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