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.

Mostly Cloudy

67°F

19°C

Humidity 73%
Wind Speed S 14 mph
Barometer 30.03 in (1016.3 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 22 Apr 11:54 am CDT
Extended Forecast for

Mendon IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 73. Southwest wind around 11 mph.

    High: 73 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 60. South wind 7 to 10 mph.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers and thunderstorms between 4pm and 5pm. Mostly sunny, with a high near 82. South wind 10 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 82 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms between 7pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 61. South wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.

    Low: 61 °F

    Chance
    T-storms then
    Showers

  • Friday

    Friday: Showers likely before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Partly sunny, with a high near 75. South wind around 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    High: 75 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 74.

    High: 74 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 73. Southwest wind around 11 mph.
Tonight
Partly cloudy, with a low around 60. South wind 7 to 10 mph.
Thursday
A slight chance of showers and thunderstorms between 4pm and 5pm. Mostly sunny, with a high near 82. South wind 10 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms between 7pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 61. South wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
Friday
Showers likely before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Partly sunny, with a high near 75. South wind around 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Friday Night
Mostly clear, with a low around 51.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Mostly cloudy, with a low around 51.
Sunday
A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 74.
Sunday Night
Showers and possibly a thunderstorm. Low around 59. Breezy. Chance of precipitation is 80%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 75. Chance of precipitation is 70%.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 48.
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:
12:01 pm CDT Apr 22, 2026
Forecast Valid:
12pm CDT Apr 22, 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