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

51°F

11°C

Humidity 35%
Wind Speed NW 10 mph
Barometer 29.99 in (1015.8 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 13 Mar 5:54 pm CDT
Extended Forecast for

Mendon IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. Northwest wind 6 to 11 mph becoming east after midnight.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 57. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 57 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 1am. Increasing clouds, with a low around 52. Southeast wind 13 to 17 mph, with gusts as high as 28 mph.

    Low: 52 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: Rain likely and possibly a thunderstorm before 1pm, then rain between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 66. Breezy, with a south wind 18 to 22 mph becoming southwest in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 90%.

    High: 66 °F

    Breezy.
    Showers
    Likely then
    Showers

  • Sunday Night

    Sunday Night: Rain and snow, becoming all snow after 10pm. Some thunder is also possible. Low around 16. Blustery, with a northwest wind 24 to 29 mph, with gusts as high as 49 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 16 °F

    Blustery.
    Rain/Snow
    then Snow

  • Monday

    Monday: A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 23. Blustery.

    High: 23 °F

    Chance Snow
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 9. Blustery.

    Low: 9 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.

    Low: 27 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 34. Northwest wind 6 to 11 mph becoming east after midnight.
Saturday
Partly sunny, with a high near 57. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
A 20 percent chance of rain after 1am. Increasing clouds, with a low around 52. Southeast wind 13 to 17 mph, with gusts as high as 28 mph.
Sunday
Rain likely and possibly a thunderstorm before 1pm, then rain between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 66. Breezy, with a south wind 18 to 22 mph becoming southwest in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 90%.
Sunday Night
Rain and snow, becoming all snow after 10pm. Some thunder is also possible. Low around 16. Blustery, with a northwest wind 24 to 29 mph, with gusts as high as 49 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Monday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 23. Blustery.
Monday Night
Mostly clear, with a low around 9. Blustery.
Tuesday
Mostly sunny, with a high near 34.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.
Wednesday
Sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 36.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 65.
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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:
4:41 pm CDT Mar 13, 2026
Forecast Valid:
6pm CDT Mar 13, 2026-6pm CDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation