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

37°F

3°C

Humidity 65%
Wind Speed E 12 mph
Barometer 30.10 in (1019.7 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 14 Mar 7:54 am CDT
Extended Forecast for

Mendon IL

  • Today

    Today: Partly sunny, with a high near 58. Southeast wind 10 to 16 mph, with gusts as high as 26 mph.

    High: 58 °F

    Partly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 51. Southeast wind 13 to 18 mph, with gusts as high as 30 mph.

    Low: 51 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain, mainly after noon. High near 64. Breezy, with a south wind 18 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 90%.

    High: 64 °F

    Breezy.
    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain and snow, becoming all snow after 10pm. Low around 15. Windy, with a northwest wind 24 to 30 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 15 °F

    Rain/Snow and
    Blustery then
    Snow and
    Windy

  • Monday

    Monday: A 20 percent chance of snow before 1pm. Mostly cloudy, with a high near 23. Blustery, with a northwest wind 22 to 28 mph, with gusts as high as 45 mph.

    High: 23 °F

    Slight Chance
    Snow and
    Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 8.

    Low: 8 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.

    Low: 28 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 58. Southeast wind 10 to 16 mph, with gusts as high as 26 mph.
Tonight
Increasing clouds, with a low around 51. Southeast wind 13 to 18 mph, with gusts as high as 30 mph.
Sunday
Rain, mainly after noon. High near 64. Breezy, with a south wind 18 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 90%.
Sunday Night
Rain and snow, becoming all snow after 10pm. Low around 15. Windy, with a northwest wind 24 to 30 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Monday
A 20 percent chance of snow before 1pm. Mostly cloudy, with a high near 23. Blustery, with a northwest wind 22 to 28 mph, with gusts as high as 45 mph.
Monday Night
Mostly clear, with a low around 8.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
A chance of snow before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 67.
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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:
7:31 am CDT Mar 14, 2026
Forecast Valid:
8am CDT Mar 14, 2026-6pm CDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation