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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

4°F

-16°C

Humidity 35%
Wind Speed N 17 G 25 mph
Barometer 30.69 in (1040.8 mb)
Dewpoint -18°F (-28°C)
Visibility 10.00 mi
Wind Chill-15°F (-26°C)
Last update 23 Jan 1:54 pm CST
Extended Forecast for

2 Miles WSW Decatur IL

Cold Weather Advisory January 23, 02:30pm until January 24, 12:00pm
Winter Storm Warning January 24, 09:00am until January 26, 12:00am
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning
  •  
    Cold Weather Advisory January 23, 02:30pm until January 24, 12:00pm

    NOW until 12:00pm Sat

    Cold Weather Advisory

  • This Afternoon

    High: 5 °F

    Cold

  • Tonight

    Tonight: Mostly cloudy, with a low around -2. Wind chill values between -12 and -18. North northeast wind around 10 mph, with gusts as high as 17 mph.

    Low: -2 °F

    Mostly Cloudy

  • Saturday

    Saturday: Snow likely, mainly after 2pm. Cloudy and cold, with a high near 10. Wind chill values between -5 and -15. East northeast wind around 10 mph, with gusts as high as 16 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 10 °F

    Slight Chance
    Snow then
    Snow Likely

  • Saturday Night

    Saturday Night: Snow, mainly after 9pm. Low around 8. Wind chill values between -1 and -6. East northeast wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 8 °F

    Snow

  • Sunday

    Sunday: Snow. High near 15. North wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 15 °F

    Snow then
    Snow Likely

  • Sunday Night

    Sunday Night: Cloudy, then gradually becoming partly cloudy, with a low around -2. Northwest wind around 13 mph, with gusts as high as 20 mph.

    Low: -2 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 11. West northwest wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 11 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 1.

    Low: 1 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Partly sunny and cold, with a high near 5. Wind chill values between -10 and -15. North wind 11 to 14 mph, with gusts as high as 21 mph.
Tonight
Mostly cloudy, with a low around -2. Wind chill values between -12 and -18. North northeast wind around 10 mph, with gusts as high as 17 mph.
Saturday
Snow likely, mainly after 2pm. Cloudy and cold, with a high near 10. Wind chill values between -5 and -15. East northeast wind around 10 mph, with gusts as high as 16 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Saturday Night
Snow, mainly after 9pm. Low around 8. Wind chill values between -1 and -6. East northeast wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Sunday
Snow. High near 15. North wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Sunday Night
Cloudy, then gradually becoming partly cloudy, with a low around -2. Northwest wind around 13 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 11. West northwest wind 9 to 13 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 1.
Tuesday
Mostly sunny, with a high near 24.
Tuesday Night
Partly cloudy, with a low around 1.
Wednesday
Partly sunny, with a high near 17.
Wednesday Night
Partly cloudy, with a low around 0.
Thursday
Mostly sunny, with a high near 14.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Decatur IL
 39.84°N 88.97°W (Elev. 676 ft)
Last Update:
1:51 pm CST Jan 23, 2026
Forecast Valid:
2pm CST Jan 23, 2026-6pm CST Jan 29, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation