Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast and Breezy

13°F

-11°C

Humidity 64%
Wind Speed W 24 G 46 mph
Barometer 30.01 in (1017.1 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill-6°F (-21°C)
Last update 29 Dec 4:54 am CST
Extended Forecast for

Mount Zion IL

Wind Advisory December 29, 05:05am until December 29, 03:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory December 29, 05:05am until December 29, 03:00pm

    NOW until 3:00pm Mon

    Wind Advisory

  • Today

    High: 22 °F

    Partly Sunny
    and Windy

  • Tonight

    Tonight: Partly cloudy, with a low around 12. Wind chill values between -2 and 3. Northwest wind 11 to 18 mph, with gusts as high as 26 mph.

    Low: 12 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 30. Wind chill values between -1 and 9. West southwest wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 30 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 25. West wind around 11 mph, with gusts as high as 18 mph.

    Low: 25 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 35. West northwest wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 35 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 18. North wind around 9 mph.

    Low: 18 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 27. Northwest wind 6 to 9 mph.

    High: 27 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 22. Wind chill values between -8 and 2. Windy, with a west northwest wind 27 to 32 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 47 mph.
Tonight
Partly cloudy, with a low around 12. Wind chill values between -2 and 3. Northwest wind 11 to 18 mph, with gusts as high as 26 mph.
Tuesday
Increasing clouds, with a high near 30. Wind chill values between -1 and 9. West southwest wind 10 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 25. West wind around 11 mph, with gusts as high as 18 mph.
Wednesday
Mostly cloudy, with a high near 35. West northwest wind 10 to 14 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly cloudy, with a low around 18. North wind around 9 mph.
New Year's Day
Mostly sunny, with a high near 27. Northwest wind 6 to 9 mph.
Thursday Night
Partly cloudy, with a low around 16.
Friday
Partly sunny, with a high near 32.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
Mostly sunny, with a high near 34.
Saturday Night
Partly cloudy, with a low around 18.
Sunday
Mostly sunny, with a high near 36.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Zion IL
 39.77°N 88.89°W (Elev. 650 ft)
3:23 am CST Dec 29, 2025
5am CST Dec 29, 2025-6pm CST Jan 4, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database