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

Hazardous Weather Conditions

Current conditions at

Quincy Regional Airport-Baldwin Field (KUIN)

Lat: 39.94°NLon: 91.2°WElev: 759ft.

Overcast

23°F

-5°C

Humidity 85%
Wind Speed S 5 mph
Barometer 30.31 in (1027.5 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 1 Dec 10:54 am CST
Extended Forecast for

Mendon IL

Winter Weather Advisory until December 1, 09:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until December 1, 09:00pm

    NOW until 9:00pm Mon

    Winter Weather Advisory

  • Today

    High: 25 °F

    Snow

  • Tonight

    Tonight: Snow, mainly before 8pm. Low around 14. Calm wind becoming west around 6 mph in the evening. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 14 °F

    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 26. West wind 5 to 8 mph becoming south in the afternoon.

    High: 26 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22. South wind 7 to 10 mph.

    Low: 22 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 35. South wind 8 to 10 mph becoming northwest in the afternoon.

    High: 35 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 2.

    Low: 2 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny and cold, with a high near 15.

    High: 15 °F

    Cold

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 4.

    Low: 4 °F

    Mostly Cloudy

Detailed Forecast

Today
Snow, mainly after noon. High near 25. South wind 3 to 6 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Snow, mainly before 8pm. Low around 14. Calm wind becoming west around 6 mph in the evening. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Tuesday
Partly sunny, with a high near 26. West wind 5 to 8 mph becoming south in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 22. South wind 7 to 10 mph.
Wednesday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 35. South wind 8 to 10 mph becoming northwest in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 2.
Thursday
Sunny and cold, with a high near 15.
Thursday Night
Mostly cloudy, with a low around 4.
Friday
A 20 percent chance of snow. Partly sunny, with a high near 31.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
Partly sunny, with a high near 33.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Mostly cloudy, with a high near 28.
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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:
10:36 am CST Dec 1, 2025
Forecast Valid:
11am CST Dec 1, 2025-6pm CST Dec 7, 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