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

79°F

26°C

Humidity 44%
Wind Speed S 14 mph
Barometer 30.14 in (1020.1 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 4 Oct 10:54 am CDT
Extended Forecast for

Mendon IL

  • Today

    Today: Sunny, with a high near 87. South wind 13 to 15 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 64. South wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 87. South wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. South wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 87. Southwest wind around 7 mph.

    High: 87 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 71.

    High: 71 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 87. South wind 13 to 15 mph.
Tonight
Clear, with a low around 64. South wind 8 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 87. South wind 10 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 64. South wind 8 to 10 mph, with gusts as high as 20 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 87. Southwest wind around 7 mph.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Sunny, with a high near 71.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 72.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 76.
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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 am CDT Oct 4, 2025
Forecast Valid:
11am CDT Oct 4, 2025-6pm CDT Oct 10, 2025
 
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