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

27°F

-3°C

Humidity 85%
Wind Speed SE 12 mph
Barometer 30.05 in (1018.7 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 17 Mar 11:54 pm CDT
Extended Forecast for

Mendon IL

  • Overnight

    Overnight: A 20 percent chance of snow before 1am. Cloudy, with a low around 25. South wind 11 to 13 mph, with gusts as high as 23 mph.

    Low: 25 °F

    Slight Chance
    Snow

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 56. South wind 6 to 9 mph becoming west in the afternoon.

    High: 56 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 42. South wind 5 to 8 mph.

    Low: 42 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 66. South wind 7 to 9 mph becoming north in the afternoon.

    High: 66 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. North wind 5 to 7 mph becoming east after midnight.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of snow before 1am. Cloudy, with a low around 25. South wind 11 to 13 mph, with gusts as high as 23 mph.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 56. South wind 6 to 9 mph becoming west in the afternoon.
Wednesday Night
Increasing clouds, with a low around 42. South wind 5 to 8 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 66. South wind 7 to 9 mph becoming north in the afternoon.
Thursday Night
Partly cloudy, with a low around 42. North wind 5 to 7 mph becoming east after midnight.
Friday
Mostly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Partly sunny, with a high near 72.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Partly sunny, with a high near 51.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
Partly sunny, with a high near 55.
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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:
10:21 pm CDT Mar 17, 2026
Forecast Valid:
12am CDT Mar 18, 2026-6pm CDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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