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

45°F

7°C

Humidity 34%
Wind Speed Calm
Barometer 30.04 in (1017.2 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 16 Nov 11:54 pm CST
Extended Forecast for

Mendon IL

  • Overnight

    Overnight: Cloudy early, then gradual clearing, with a low around 37. East wind 3 to 7 mph.

    Low: 37 °F

    Gradual
    Clearing

  • Monday

    Monday: Scattered showers after 5pm. Increasing clouds, with a high near 57. Southeast wind 7 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 57 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers and thunderstorms before 3am, then isolated showers between 3am and 4am. Cloudy, with a low around 47. Southeast wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 47 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 62. Southeast wind 8 to 10 mph becoming northeast in the afternoon.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. Northeast wind 6 to 8 mph.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain after midnight. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.

    High: 63 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.

    Low: 52 °F

    Rain Likely

Detailed Forecast

Overnight
Cloudy early, then gradual clearing, with a low around 37. East wind 3 to 7 mph.
Monday
Scattered showers after 5pm. Increasing clouds, with a high near 57. Southeast wind 7 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Monday Night
Scattered showers and thunderstorms before 3am, then isolated showers between 3am and 4am. Cloudy, with a low around 47. Southeast wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Tuesday
Partly sunny, with a high near 62. Southeast wind 8 to 10 mph becoming northeast in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 42. Northeast wind 6 to 8 mph.
Wednesday
Partly sunny, with a high near 57.
Wednesday Night
A 50 percent chance of rain after midnight. Mostly cloudy, with a low around 46.
Thursday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.
Thursday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Friday
A 50 percent chance of rain. Partly sunny, with a high near 60.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 42.
Saturday
Partly sunny, with a high near 53.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Mostly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mendon IL
 40.08°N 91.29°W (Elev. 702 ft)
Last Update:
9:26 pm CST Nov 16, 2025
Forecast Valid:
12am CST Nov 17, 2025-6pm CST Nov 23, 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