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.

Overcast

70°F

21°C

Humidity 93%
Wind Speed N 20 G 35 mph
Barometer 29.78 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 1 Aug 3:55 pm CDT
Extended Forecast for

Marietta IL

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Cloudy, with a high near 73. North wind around 18 mph, with gusts as high as 31 mph.

    High: 73 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 63. Breezy, with a north wind 13 to 22 mph, with gusts as high as 30 mph.

    Low: 63 °F

    Slight Chance
    T-storms and
    Breezy then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 80. North wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. North wind around 6 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 82. Calm wind.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 61. Calm wind.

    Low: 61 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. Calm wind.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Cloudy, with a high near 73. North wind around 18 mph, with gusts as high as 31 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 63. Breezy, with a north wind 13 to 22 mph, with gusts as high as 30 mph.
Sunday
Mostly sunny, with a high near 80. North wind 11 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 61. North wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 82. Calm wind.
Monday Night
Clear, with a low around 61. Calm wind.
Tuesday
Sunny, with a high near 84. Calm wind.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 66.
Friday
Mostly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 68.
Saturday
Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marietta IL
 40.5°N 90.41°W (Elev. 650 ft)
Last Update:
1:26 pm CDT Aug 1, 2026
Forecast Valid:
4pm CDT Aug 1, 2026-6pm CDT Aug 8, 2026
 
Forecast Discussion
 
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Additional Resources

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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