National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Quincy Regional Airport-Baldwin Field (KUIN)

Lat: 39.94°NLon: 91.2°WElev: 759ft.

Fair

72°F

22°C

Humidity 41%
Wind Speed SW 9 mph
Barometer 30.15 in (1020.5 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 9 Apr 11:54 am CDT
Extended Forecast for

Mendon IL

  • This Afternoon

    This Afternoon: A slight chance of showers between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 77. Southwest wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Low around 52. South wind 7 to 13 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%.

    Low: 52 °F

    Chance
    T-storms then
    Showers

  • Friday

    Friday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 62. Northwest wind around 11 mph becoming north in the afternoon. Chance of precipitation is 60%.

    High: 62 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 46. East wind 7 to 9 mph.

    Low: 46 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers. Mostly cloudy, with a high near 68. Southeast wind around 11 mph, with gusts as high as 20 mph.

    High: 68 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.

    High: 75 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.

    Low: 64 °F

    Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.

    High: 83 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A slight chance of showers between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 77. Southwest wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Low around 52. South wind 7 to 13 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%.
Friday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 62. Northwest wind around 11 mph becoming north in the afternoon. Chance of precipitation is 60%.
Friday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 46. East wind 7 to 9 mph.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 68. Southeast wind around 11 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 61.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.
Monday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Monday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Tuesday
Showers and thunderstorms. High near 79. Chance of precipitation is 80%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mendon IL
 40.08°N 91.29°W (Elev. 702 ft)
Last Update:
11:51 am CDT Apr 9, 2026
Forecast Valid:
12pm CDT Apr 9, 2026-6pm CDT Apr 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