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.

Overcast

21°F

-6°C

Humidity 92%
Wind Speed SW 8 mph
Barometer 30.08 in (1019.7 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 2 Dec 7:54 am CST
Extended Forecast for

Mendon IL

  • Today

    Today: Mostly cloudy, with a high near 26. Southwest wind 5 to 9 mph.

    High: 26 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. South wind 8 to 11 mph.

    Low: 21 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 34. South wind 8 to 14 mph becoming north in the afternoon. Winds could gust as high as 22 mph.

    High: 34 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 1. Wind chill values as low as -10. North wind 8 to 14 mph, with gusts as high as 23 mph.

    Low: 1 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny and cold, with a high near 15. North wind 5 to 7 mph becoming light and variable in the afternoon.

    High: 15 °F

    Cold

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 2.

    Low: 2 °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 19.

    Low: 19 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 31.

    High: 31 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 26. Southwest wind 5 to 9 mph.
Tonight
Mostly cloudy, with a low around 21. South wind 8 to 11 mph.
Wednesday
A 40 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 34. South wind 8 to 14 mph becoming north in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Mostly cloudy, with a low around 1. Wind chill values as low as -10. North wind 8 to 14 mph, with gusts as high as 23 mph.
Thursday
Sunny and cold, with a high near 15. North wind 5 to 7 mph becoming light and variable in the afternoon.
Thursday Night
Mostly clear, with a low around 2.
Friday
Mostly sunny, with a high near 31.
Friday Night
Mostly cloudy, with a low around 19.
Saturday
Mostly cloudy, with a high near 31.
Saturday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 20.
Sunday
A 20 percent chance of snow. Mostly cloudy, with a high near 26.
Sunday Night
Mostly cloudy, with a low around 12.
Monday
Mostly cloudy, with a high near 32.
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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:
4:46 am CST Dec 2, 2025
Forecast Valid:
8am CST Dec 2, 2025-6pm CST Dec 8, 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