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

29°F

-2°C

Humidity 66%
Wind Speed SW 10 mph
Barometer 30.32 in (1027.4 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 12 Jan 12:54 am CST
Extended Forecast for

Mendon IL

  • Overnight

    Overnight: Mostly clear, with a low around 26. Southwest wind around 11 mph.

    Low: 26 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 48. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36. Southwest wind 7 to 11 mph.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 56. West wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 56 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33. West wind 11 to 16 mph, with gusts as high as 28 mph.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 39. Breezy.

    High: 39 °F

    Mostly Cloudy
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 17. Blustery.

    Low: 17 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 28.

    Low: 28 °F

    Slight Chance
    Snow then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 26. Southwest wind around 11 mph.
Monday
Mostly sunny, with a high near 48. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.
Monday Night
Partly cloudy, with a low around 36. Southwest wind 7 to 11 mph.
Tuesday
Partly sunny, with a high near 56. West wind 13 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 33. West wind 11 to 16 mph, with gusts as high as 28 mph.
Wednesday
Mostly cloudy, with a high near 39. Breezy.
Wednesday Night
Partly cloudy, with a low around 17. Blustery.
Thursday
Mostly sunny, with a high near 32.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 28.
Friday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 39.
Friday Night
Mostly cloudy, with a low around 19.
Saturday
Mostly cloudy, with a high near 27.
Saturday Night
Partly cloudy, with a low around 12.
Sunday
Mostly sunny, with a high near 29.
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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:
12:31 am CST Jan 12, 2026
Forecast Valid:
1am CST Jan 12, 2026-6pm CST Jan 18, 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