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

Macomb Municipal Airport (KMQB)

Lat: 40.52°NLon: 90.65°WElev: 679ft.

Fair

32°F

0°C

Humidity 64%
Wind Speed S 12 mph
Barometer 29.85 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 5 Dec 1:55 pm CST
Extended Forecast for

Marietta IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 32. South wind 8 to 10 mph, with gusts as high as 21 mph.

    High: 32 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 26. South southwest wind 5 to 7 mph becoming west northwest after midnight. Winds could gust as high as 16 mph.

    Low: 26 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 31. West northwest wind around 5 mph becoming calm in the morning.

    High: 31 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow, mainly after midnight. Low around 25. East southeast wind 3 to 8 mph. Winds could gust as high as 17 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 25 °F

    Chance Snow
    then Snow

  • Sunday

    Sunday: A 40 percent chance of snow before noon. Mostly cloudy, with a temperature falling to around 21 by 5pm. North wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 29 °F⇓

    Chance Snow
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 4. North wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 16 mph.

    Low: 4 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 24. Calm wind becoming south around 6 mph in the afternoon.

    High: 24 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 32. South wind 8 to 10 mph, with gusts as high as 21 mph.
Tonight
Mostly cloudy, with a low around 26. South southwest wind 5 to 7 mph becoming west northwest after midnight. Winds could gust as high as 16 mph.
Saturday
Partly sunny, with a high near 31. West northwest wind around 5 mph becoming calm in the morning.
Saturday Night
Snow, mainly after midnight. Low around 25. East southeast wind 3 to 8 mph. Winds could gust as high as 17 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Sunday
A 40 percent chance of snow before noon. Mostly cloudy, with a temperature falling to around 21 by 5pm. North wind 9 to 11 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 4. North wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 16 mph.
Monday
Partly sunny, with a high near 24. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
A 30 percent chance of rain. Cloudy, with a low around 29.
Wednesday
A chance of rain. Mostly cloudy, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 18.
Thursday
Mostly cloudy, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marietta IL
 40.5°N 90.41°W (Elev. 650 ft)
Last Update:
1:42 pm CST Dec 5, 2025
Forecast Valid:
2pm CST Dec 5, 2025-6pm CST Dec 11, 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