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

75°F

24°C

Humidity 46%
Wind Speed S 8 mph
Barometer 30.06 in (1017.4 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 10 Oct 10:54 am CDT
Extended Forecast for

Mendon IL

  • Today

    Today: Sunny, with a high near 85. South wind around 9 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 58. Southeast wind 5 to 9 mph.

    Low: 58 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 86. Southeast wind 5 to 7 mph.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 68. South wind 6 to 9 mph.

    Low: 68 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Sunny, with a high near 88. Southwest wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly clear, with a low around 61.

    Low: 61 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 74. Chance of precipitation is 60%.

    High: 74 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 85. South wind around 9 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 58. Southeast wind 5 to 9 mph.
Sunday
Sunny, with a high near 86. Southeast wind 5 to 7 mph.
Sunday Night
Partly cloudy, with a low around 68. South wind 6 to 9 mph.
Columbus Day
Sunny, with a high near 88. Southwest wind 10 to 14 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 69.
Tuesday
Sunny, with a high near 82.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly clear, with a low around 61.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 74. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers. Partly sunny, with a high near 73.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 53.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 65.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mendon IL
 40.08°N 91.29°W (Elev. 702 ft)
Last Update:
8:36 am CDT Oct 10, 2026
Forecast Valid:
10am CDT Oct 10, 2026-6pm CDT Oct 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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