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

Macomb Municipal Airport (KMQB)

Lat: 40.52°NLon: 90.65°WElev: 679ft.

Fair

65°F

18°C

Humidity 55%
Wind Speed SW 7 mph
Barometer 29.79 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 3 May 7:35 pm CDT
Extended Forecast for

Colchester IL

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 49. West wind 5 to 10 mph.

    Low: 49 °F

    Decreasing
    Clouds

  • Monday

    Monday: A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 80. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 80 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 4am, then showers likely after 4am. Increasing clouds, with a low around 49. Southwest wind around 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely. Cloudy, with a high near 56. North wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    High: 56 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 49. West wind 5 to 10 mph.
Monday
A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 80. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
A slight chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 4am, then showers likely after 4am. Increasing clouds, with a low around 49. Southwest wind around 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers likely. Cloudy, with a high near 56. North wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly cloudy, with a high near 59.
Wednesday Night
Mostly cloudy, with a low around 40.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 46.
Friday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Colchester IL
 40.42°N 90.78°W (Elev. 669 ft)
Last Update:
5:51 pm CDT May 3, 2026
Forecast Valid:
7pm CDT May 3, 2026-6pm CDT May 10, 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