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

56°F

13°C

Humidity 44%
Wind Speed NW 14 mph
Barometer 30.27 in (1025.2 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 5 Apr 5:54 pm CDT
Extended Forecast for

Mendon IL

  • Tonight

    Tonight: Clear, with a low around 39. Northwest wind 6 to 11 mph becoming southwest in the evening.

    Low: 39 °F

    Clear

  • Monday

    Monday: Increasing clouds, with a high near 53. North wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 53 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A chance of rain showers after 11pm, mixing with snow after 4am. Cloudy, with a low around 33. Northeast wind around 10 mph. Chance of precipitation is 30%.

    Low: 33 °F

    Slight Chance
    Showers then
    Chance
    Rain/Snow

  • Tuesday

    Tuesday: A chance of snow showers before 1pm, then a slight chance of rain and snow showers between 1pm and 4pm, then a slight chance of rain showers after 4pm. Mostly cloudy, with a high near 46. East wind around 11 mph. Chance of precipitation is 30%.

    High: 46 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41. East wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    Showers

  • Thursday

    Thursday: A 50 percent chance of showers. Partly sunny, with a high near 71.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 39. Northwest wind 6 to 11 mph becoming southwest in the evening.
Monday
Increasing clouds, with a high near 53. North wind 7 to 13 mph, with gusts as high as 20 mph.
Monday Night
A chance of rain showers after 11pm, mixing with snow after 4am. Cloudy, with a low around 33. Northeast wind around 10 mph. Chance of precipitation is 30%.
Tuesday
A chance of snow showers before 1pm, then a slight chance of rain and snow showers between 1pm and 4pm, then a slight chance of rain showers after 4pm. Mostly cloudy, with a high near 46. East wind around 11 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 41. East wind 10 to 14 mph, with gusts as high as 24 mph.
Wednesday
Mostly sunny, with a high near 72.
Wednesday Night
A 30 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 55.
Thursday
A 50 percent chance of showers. Partly sunny, with a high near 71.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 67. Chance of precipitation is 50%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 73.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
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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:
5:36 pm CDT Apr 5, 2026
Forecast Valid:
6pm CDT Apr 5, 2026-6pm CDT Apr 12, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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