Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Current conditions at

Macomb Municipal Airport (KMQB)

Lat: 40.52°NLon: 90.65°WElev: 679ft.

Overcast

81°F

27°C

Humidity 86%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 25 Jul 2:15 pm CDT
Extended Forecast for

Colchester IL

Extreme Heat Watch July 26, 09:00pm until July 27, 10:00pm
Extreme Heat Warning July 26, 11:00am until July 26, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
Extreme Heat Warning
  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 88. Calm wind becoming west around 5 mph.

    High: 88 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 10am.  Partly sunny, with a high near 92. Heat index values as high as 107. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 92 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 10pm.  Partly cloudy, with a low around 76. Southwest wind around 5 mph.

    Low: 76 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 88. Calm wind becoming west around 5 mph.
Tonight
Partly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm.
Sunday
A 20 percent chance of showers and thunderstorms after 10am. Partly sunny, with a high near 92. Heat index values as high as 107. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 76. Southwest wind around 5 mph.
Monday
Mostly sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 67.
Friday
Mostly sunny, with a high near 86.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Colchester IL
 40.42°N 90.81°W (Elev. 666 ft)
2:01 pm CDT Jul 25, 2026
2pm CDT Jul 25, 2026-6pm CDT Jul 31, 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