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.

Overcast

13°F

-11°C

Humidity 73%
Wind Speed NW 18 mph
Barometer 30.58 in
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill-4°F (-20°C)
Last update 23 Feb 5:35 am CST
Extended Forecast for

Marietta IL

  • Overnight

    Overnight: A chance of flurries. Mostly cloudy, with a low around 10. Wind chill values between -2 and 3. North northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 10 °F

    Chance
    Flurries

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 29. Wind chill values between -5 and 5. North northwest wind 7 to 14 mph, with gusts as high as 24 mph.

    High: 29 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 20 mph.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 50. Breezy, with a south wind 11 to 21 mph becoming west southwest in the afternoon. Winds could gust as high as 33 mph.

    High: 50 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Northwest wind 9 to 11 mph, with gusts as high as 24 mph.

    Low: 24 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 44. Northwest wind 5 to 9 mph, with gusts as high as 17 mph.

    High: 44 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Rain and snow likely, becoming all snow after 3am. Mostly cloudy, with a low around 26. North northeast wind 5 to 8 mph becoming east in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 26 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of flurries. Mostly cloudy, with a low around 10. Wind chill values between -2 and 3. North northwest wind around 15 mph, with gusts as high as 25 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 29. Wind chill values between -5 and 5. North northwest wind 7 to 14 mph, with gusts as high as 24 mph.
Monday Night
Partly cloudy, with a low around 18. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 50. Breezy, with a south wind 11 to 21 mph becoming west southwest in the afternoon. Winds could gust as high as 33 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Northwest wind 9 to 11 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 44. Northwest wind 5 to 9 mph, with gusts as high as 17 mph.
Wednesday Night
Rain and snow likely, becoming all snow after 3am. Mostly cloudy, with a low around 26. North northeast wind 5 to 8 mph becoming east in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Mostly sunny, with a high near 42.
Thursday Night
Mostly clear, with a low around 24.
Friday
Sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 32.
Saturday
Mostly sunny, with a high near 54.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
A chance of snow. Partly sunny, with a high near 42.
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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:
5:37 am CST Feb 23, 2026
Forecast Valid:
5am CST Feb 23, 2026-6pm CST Mar 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation