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

Heavy Rainfall for Portions of the West and Central U.S.; Monitoring Fire Weather Conditions for New England

Tropical moisture continues to flow across portions of the Great Basin, desert Southwest and California. Isolated instances of flash flooding remains possible. Meanwhile, a storm and associated frontal boundary will focus showers and thunderstorms for the center of the nation. For New England, dry and breezy conditions could enhance favorable fire weather conditions. Read More >

Hazardous Weather Conditions

Current conditions at

Macomb Municipal Airport (KMQB)

Lat: 40.52°NLon: 90.65°WElev: 679ft.

Fair

63°F

17°C

Humidity 98%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 20 Sep 12:55 am CDT
Extended Forecast for

Colchester IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 60. West wind around 5 mph becoming calm.

    Low: 60 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 80. Calm wind becoming southeast around 5 mph in the morning. Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Calm wind becoming west around 5 mph in the morning. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 50 percent chance of showers. Mostly cloudy, with a high near 78.

    High: 78 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 60. West wind around 5 mph becoming calm.
Saturday
A slight chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 80. Calm wind becoming southeast around 5 mph in the morning. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm. Chance of precipitation is 40%.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Calm wind becoming west around 5 mph in the morning. Chance of precipitation is 30%.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 62.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 61.
Tuesday
A 50 percent chance of showers. Mostly cloudy, with a high near 78.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 61.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 76.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 58.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 74.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Colchester IL
 40.42°N 90.78°W (Elev. 669 ft)
Last Update:
12:00 am CDT Sep 20, 2025
Forecast Valid:
12am CDT Sep 20, 2025-6pm CDT Sep 26, 2025
 
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