National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Quincy Regional Airport-Baldwin Field (KUIN)

Lat: 39.94°NLon: 91.2°WElev: 759ft.

Partly Cloudy

65°F

18°C

Humidity 90%
Wind Speed S 9 mph
Barometer 29.84 in (1010.0 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 17 Apr 5:54 am CDT
Extended Forecast for

Mendon IL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 84. Breezy, with a south wind 10 to 20 mph, with gusts as high as 32 mph.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then showers likely. Low around 43. South wind 16 to 18 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%.

    Low: 43 °F

    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers before 10am. Partly sunny, then gradually becoming sunny, with a high near 55. Northwest wind around 17 mph, with gusts as high as 29 mph.

    High: 55 °F

    Slight Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. West wind 7 to 13 mph, with gusts as high as 22 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 62. Northwest wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 84. Breezy, with a south wind 10 to 20 mph, with gusts as high as 32 mph.
Tonight
Showers and thunderstorms before 1am, then showers likely. Low around 43. South wind 16 to 18 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%.
Saturday
A 20 percent chance of showers before 10am. Partly sunny, then gradually becoming sunny, with a high near 55. Northwest wind around 17 mph, with gusts as high as 29 mph.
Saturday Night
Mostly clear, with a low around 36. West wind 7 to 13 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 62. Northwest wind 7 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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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:
5:41 am CDT Apr 17, 2026
Forecast Valid:
6am CDT Apr 17, 2026-6pm CDT Apr 23, 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