Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Current conditions at

Macomb Municipal Airport (KMQB)

Lat: 40.52°NLon: 90.65°WElev: 679ft.

Fair

88°F

31°C

Humidity 99%
Wind Speed Calm
Barometer 29.87 in
Dewpoint 87°F (31°C)
Visibility 10.00 mi
Heat Index120°F (49°C)
Last update 26 Jul 7:55 pm CDT
Extended Forecast for

4 Miles SSE Colchester IL

Extreme Heat Warning July 26, 08:03pm until July 27, 10:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 26, 08:03pm until July 27, 10:00pm

    NOW until 10:00pm Mon

    Extreme Heat Warning

  • Tonight

    Low: 76 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 94. Heat index values as high as 114. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 94 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Patchy smoke after 2am. Partly cloudy, with a low around 75. Southwest wind 5 to 10 mph becoming north after midnight.

    Low: 75 °F

    Mostly Clear
    then Patchy
    Smoke

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. North wind 5 to 10 mph.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 76. South wind around 5 mph.
Monday
Mostly sunny, with a high near 94. Heat index values as high as 114. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Patchy smoke after 2am. Partly cloudy, with a low around 75. Southwest wind 5 to 10 mph becoming north after midnight.
Tuesday
Mostly sunny, with a high near 87. North wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Clear, with a low around 65.
Thursday
Sunny, with a high near 87.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 68.
Friday
A 50 percent chance of showers. Partly sunny, with a high near 79.
Friday Night
A 40 percent chance of showers. Partly cloudy, with a low around 66.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Sunny, with a high near 82.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Colchester IL
 40.38°N 90.76°W (Elev. 600 ft)
4:46 pm CDT Jul 26, 2026
8pm CDT Jul 26, 2026-6pm CDT Aug 2, 2026
 
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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