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

72°F

22°C

Humidity 94%
Wind Speed W 9 mph
Barometer 29.87 in (1010.9 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 15 Oct 2:54 pm CDT
Extended Forecast for

Mendon IL

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 71. West wind around 9 mph.

    High: 71 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 46. Northwest wind 14 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.

    Low: 46 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers, mainly before 3pm. Increasing clouds, with a high near 54. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 32 mph.

    High: 54 °F

    Breezy.
    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. North wind 6 to 15 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 58. Light and variable wind.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 71. West wind around 9 mph.
Tonight
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 46. Northwest wind 14 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers, mainly before 3pm. Increasing clouds, with a high near 54. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 32 mph.
Friday Night
Partly cloudy, with a low around 36. North wind 6 to 15 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 58. Light and variable wind.
Saturday Night
Clear, with a low around 39.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 44.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Mostly sunny, with a high near 78.
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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:
2:26 pm CDT Oct 15, 2026
Forecast Valid:
3pm CDT Oct 15, 2026-6pm CDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

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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