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

44°F

7°C

Humidity 55%
Wind Speed E 14 mph
Barometer 30.27 in (1025.4 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 7 Apr 8:54 pm CDT
Extended Forecast for

Mendon IL

  • Tonight

    Tonight: A chance of sprinkles before 10pm. Mostly cloudy, with a low around 41. Southeast wind around 14 mph, with gusts as high as 26 mph.

    Low: 41 °F

    Chance
    Sprinkles

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72. Breezy, with a south wind 15 to 22 mph, with gusts as high as 36 mph.

    High: 72 °F

    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: A chance of showers, with thunderstorms also possible after 4am. Increasing clouds, with a low around 53. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of thunderstorms before 1pm, then a chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 72. Southwest wind around 8 mph. Chance of precipitation is 40%.

    High: 72 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 53. Southeast wind 6 to 10 mph becoming west after midnight. Chance of precipitation is 70%.

    Low: 53 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.

    High: 63 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers. Partly sunny, with a high near 69.

    High: 69 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of sprinkles before 10pm. Mostly cloudy, with a low around 41. Southeast wind around 14 mph, with gusts as high as 26 mph.
Wednesday
Mostly sunny, with a high near 72. Breezy, with a south wind 15 to 22 mph, with gusts as high as 36 mph.
Wednesday Night
A chance of showers, with thunderstorms also possible after 4am. Increasing clouds, with a low around 53. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Thursday
A slight chance of thunderstorms before 1pm, then a chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 72. Southwest wind around 8 mph. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 53. Southeast wind 6 to 10 mph becoming west after midnight. Chance of precipitation is 70%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 48.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 69.
Saturday Night
Mostly cloudy, with a low around 59.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 50%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Breezy.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 74. Chance of precipitation is 70%.
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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:
8:06 pm CDT Apr 7, 2026
Forecast Valid:
9pm CDT Apr 7, 2026-6pm CDT Apr 14, 2026
 
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