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

63°F

17°C

Humidity 70%
Wind Speed S 8 mph
Barometer 30.00 in (1015.7 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 11 Oct 8:54 am CDT
Extended Forecast for

Mendon IL

  • Today

    Today: Sunny, with a high near 87. South wind around 8 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 69. South wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 69 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Partly sunny, then gradually becoming sunny, with a high near 90. Southwest wind 11 to 16 mph, with gusts as high as 25 mph.

    High: 90 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 72. Southwest wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 72 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 87. West wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 87 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.

    Low: 66 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 75. Chance of precipitation is 70%.

    High: 75 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.

    Low: 61 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 71. Chance of precipitation is 70%.

    High: 71 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 87. South wind around 8 mph.
Tonight
Partly cloudy, with a low around 69. South wind 6 to 9 mph, with gusts as high as 20 mph.
Columbus Day
Partly sunny, then gradually becoming sunny, with a high near 90. Southwest wind 11 to 16 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 72. Southwest wind 10 to 13 mph, with gusts as high as 23 mph.
Tuesday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 87. West wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 75. Chance of precipitation is 70%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 71. Chance of precipitation is 70%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Mendon IL
 40.08°N 91.29°W (Elev. 702 ft)
Last Update:
5:26 am CDT Oct 11, 2026
Forecast Valid:
9am CDT Oct 11, 2026-6pm CDT Oct 17, 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