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

49°F

9°C

Humidity 50%
Wind Speed S 13 mph
Barometer 29.80 in (1009.1 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 9 Mar 2:54 am CDT
Extended Forecast for

Mendon IL

  • Overnight

    Overnight: Clear, with a low around 48. Southwest wind around 14 mph, with gusts as high as 23 mph.

    Low: 48 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 76. Southwest wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. Southwest wind 8 to 10 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of rain between 1pm and 4pm, then a chance of rain and thunderstorms after 4pm. Mostly sunny, with a high near 81. South wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    High: 81 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 44. Southwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.

    Low: 44 °F

    T-storms

  • Wednesday

    Wednesday: Rain likely and possibly a thunderstorm before 7am, then rain likely between 7am and 1pm. Cloudy, with a temperature falling to around 45 by 5pm. Breezy. Chance of precipitation is 70%.

    High: 55 °F⇓

    Rain Likely
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 44. Breezy.

    Low: 44 °F

    Slight Chance
    Rain and
    Breezy

Detailed Forecast

Overnight
Clear, with a low around 48. Southwest wind around 14 mph, with gusts as high as 23 mph.
Monday
Sunny, with a high near 76. Southwest wind 13 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 57. Southwest wind 8 to 10 mph.
Tuesday
A chance of rain between 1pm and 4pm, then a chance of rain and thunderstorms after 4pm. Mostly sunny, with a high near 81. South wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 44. Southwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.
Wednesday
Rain likely and possibly a thunderstorm before 7am, then rain likely between 7am and 1pm. Cloudy, with a temperature falling to around 45 by 5pm. Breezy. Chance of precipitation is 70%.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
Mostly sunny, with a high near 53.
Thursday Night
A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 44. Breezy.
Friday
Mostly cloudy, with a high near 56.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
Mostly cloudy, with a high near 60.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 42.
Sunday
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 59.
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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:
1:26 am CDT Mar 9, 2026
Forecast Valid:
3am CDT Mar 9, 2026-6pm CDT Mar 15, 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