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 47%
Wind Speed SE 15 mph
Barometer 30.27 in (1025.4 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 24 Mar 9:54 am CDT
Extended Forecast for

Mendon IL

  • Today

    Today: Partly sunny, with a high near 60. South wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 60 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. Southeast wind 6 to 9 mph.

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 77. South wind 8 to 15 mph.

    High: 77 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62. South wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of rain between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 86. Southwest wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 86 °F

    Sunny then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, mainly before 1am, then a chance of rain after 4am. Mostly cloudy, with a low around 40. Chance of precipitation is 70%.

    Low: 40 °F

    Showers
    Likely

  • Friday

    Friday: A 30 percent chance of rain before 7am. Partly sunny, with a high near 50.

    High: 50 °F

    Chance Rain
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 60. South wind 7 to 13 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 45. Southeast wind 6 to 9 mph.
Wednesday
Partly sunny, with a high near 77. South wind 8 to 15 mph.
Wednesday Night
Partly cloudy, with a low around 62. South wind 8 to 11 mph, with gusts as high as 20 mph.
Thursday
A chance of rain between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 86. Southwest wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Thursday Night
Showers and thunderstorms likely, mainly before 1am, then a chance of rain after 4am. Mostly cloudy, with a low around 40. Chance of precipitation is 70%.
Friday
A 30 percent chance of rain before 7am. Partly sunny, with a high near 50.
Friday Night
Mostly clear, with a low around 30.
Saturday
Sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Partly sunny, with a high near 63.
Sunday Night
Partly cloudy, with a low around 47.
Monday
A 20 percent chance of rain. Mostly sunny, with a high near 76.
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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:
2:56 am CDT Mar 24, 2026
Forecast Valid:
10am CDT Mar 24, 2026-6pm CDT Mar 30, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation