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 and Breezy

78°F

26°C

Humidity 43%
Wind Speed SW 21 G 31 mph
Barometer 29.90 in (1012.2 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 21 Apr 4:54 pm CDT
Extended Forecast for

Mendon IL

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Southwest wind 14 to 17 mph, with gusts as high as 30 mph.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. Southwest wind around 11 mph, with gusts as high as 20 mph.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. South wind 8 to 10 mph.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 82. South wind 11 to 18 mph, with gusts as high as 31 mph.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 61. South wind 14 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.

    Low: 61 °F

    Chance
    T-storms then
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 75. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 51.

    Low: 51 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 59. Southwest wind 14 to 17 mph, with gusts as high as 30 mph.
Wednesday
Mostly sunny, with a high near 78. Southwest wind around 11 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 59. South wind 8 to 10 mph.
Thursday
Mostly sunny, with a high near 82. South wind 11 to 18 mph, with gusts as high as 31 mph.
Thursday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 61. South wind 14 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 75. Chance of precipitation is 50%.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 52.
Sunday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 76.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 66.
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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:
5:51 pm CDT Apr 21, 2026
Forecast Valid:
5pm CDT Apr 21, 2026-6pm CDT Apr 28, 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