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

Hazardous Weather Conditions

Current conditions at

Macomb Municipal Airport (KMQB)

Lat: 40.52°NLon: 90.65°WElev: 679ft.

Fair

89°F

32°C

Humidity 67%
Wind Speed S 6 mph
Barometer 30.07 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 18 Aug 10:55 am CDT
Extended Forecast for

6 Miles SSE Colchester IL

Heat Advisory August 18, 12:00pm until August 18, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 92. Heat index values as high as 107. South wind 5 to 10 mph.

    High: 92 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind around 5 mph.

    Low: 72 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 89. Calm wind becoming northwest around 5 mph in the morning.

    High: 89 °F

    Chance
    T-storms and
    Patchy Fog
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69. North wind around 5 mph.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Today
A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 92. Heat index values as high as 107. South wind 5 to 10 mph.
Tonight
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind around 5 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 89. Calm wind becoming northwest around 5 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 69. North wind around 5 mph.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSE Colchester IL
 40.36°N 90.76°W (Elev. 650 ft)
Last Update:
11:01 am CDT Aug 18, 2025
Forecast Valid:
11am CDT Aug 18, 2025-6pm CDT Aug 24, 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