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

Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fog/Mist

30°F

-1°C

Humidity 88%
Wind Speed SE 8 mph
Barometer 29.95 in (1014.8 mb)
Dewpoint 27°F (-3°C)
Visibility 6.00 mi
Wind Chill22°F (-6°C)
Last update 6 Dec 10:54 pm CST
Extended Forecast for

Oreana IL

Winter Weather Advisory until December 7, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until December 7, 06:00am

    NOW until 6:00am Sun

    Winter Weather Advisory

  • Tonight

    Low: 26 °F

    Chance
    Rain/Freezing
    Rain and
    Patchy Fog

  • Sunday

    Sunday: A chance of rain and snow before 9am, then a slight chance of rain between 9am and noon. Areas of fog before 1pm. Otherwise, cloudy, with a temperature falling to around 27 by 5pm. South wind 7 to 16 mph becoming north in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 40%.

    High: 33 °F⇓

    Chance
    Rain/Snow and
    Areas Fog
    then Patchy
    Fog

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 12. Wind chill values between 3 and 8. North northeast wind 6 to 14 mph, with gusts as high as 17 mph.

    Low: 12 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 25. Wind chill values between 5 and 15. North northeast wind around 6 mph becoming south in the afternoon.

    High: 25 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a temperature falling to near 17 by 8pm, then rising to around 26 during the remainder of the night. South wind 6 to 11 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 23 mph.

    Low: 17 °F⇑

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 41. South southwest wind 16 to 18 mph, with gusts as high as 23 mph.

    High: 41 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 34. Breezy, with a southwest wind 16 to 22 mph, with gusts as high as 28 mph.

    Low: 34 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 40. Breezy.

    High: 40 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Tonight
A chance of freezing rain before 2am, then a chance of rain. Patchy fog. Otherwise, cloudy, with a low around 26. Southeast wind 7 to 9 mph. Chance of precipitation is 40%.
Sunday
A chance of rain and snow before 9am, then a slight chance of rain between 9am and noon. Areas of fog before 1pm. Otherwise, cloudy, with a temperature falling to around 27 by 5pm. South wind 7 to 16 mph becoming north in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 12. Wind chill values between 3 and 8. North northeast wind 6 to 14 mph, with gusts as high as 17 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 25. Wind chill values between 5 and 15. North northeast wind around 6 mph becoming south in the afternoon.
Monday Night
Mostly cloudy, with a temperature falling to near 17 by 8pm, then rising to around 26 during the remainder of the night. South wind 6 to 11 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 23 mph.
Tuesday
Partly sunny, with a high near 41. South southwest wind 16 to 18 mph, with gusts as high as 23 mph.
Tuesday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 34. Breezy, with a southwest wind 16 to 22 mph, with gusts as high as 28 mph.
Wednesday
Mostly cloudy, with a high near 40. Breezy.
Wednesday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 21.
Thursday
A 30 percent chance of snow before noon. Mostly cloudy, with a high near 31.
Thursday Night
Mostly cloudy, with a low around 12.
Friday
Partly sunny, with a high near 20.
Friday Night
Mostly cloudy, with a low around 0.
Saturday
Mostly sunny, with a high near 14.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Oreana IL
 39.95°N 88.88°W (Elev. 682 ft)
Last Update:
11:32 pm CST Dec 6, 2025
Forecast Valid:
11pm CST Dec 6, 2025-6pm CST Dec 13, 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