Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Overcast
0°F
-18°C
| Humidity | 57% |
| Wind Speed | NE 14 mph |
| Barometer | 30.66 in (1040.0 mb) |
| Dewpoint | -12°F (-24°C) |
| Visibility | 10.00 mi |
| Wind Chill | -19°F (-28°C) |
| Last update | 24 Jan 8:54 am CST |
Extended Forecast for
2 Miles ENE Harristown IL
Cold Weather Advisory January 24, 09:14am until January 24, 12:00pm
Winter Storm Warning January 24, 12:00pm until January 25, 09:00pm
NOW until 12:00pm Sat
Cold Weather Advisory
Today
High: 11 °F
Slight Chance
Snow then
Snow LikelyTonight
Low: 9 °F
Snow Likely
then SnowSunday
High: 15 °F
Snow
Sunday Night
Low: -2 °F
Decreasing
CloudsMonday
High: 11 °F
Sunny
Monday Night
Low: 1 °F
Mostly Clear
Tuesday
High: 26 °F
Mostly Sunny
Tuesday Night
Low: 1 °F
Partly Cloudy
Detailed Forecast
Today
Snow likely, mainly after 4pm. Cloudy, with a high near 11. Wind chill values between -3 and -13. East northeast wind around 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow. Low around 9. Wind chill values between -5 and zero. Northeast wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Sunday
Snow. High near 15. Wind chill values between -7 and zero. North wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around -2. Wind chill values between -10 and -20. North northwest wind around 14 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 11. West northwest wind 10 to 14 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 1. Southwest wind 9 to 14 mph, with gusts as high as 23 mph.
Tuesday
Mostly sunny, with a high near 26. Southwest wind 10 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph.
Tuesday Night
Partly cloudy, with a low around 1.
Wednesday
Partly sunny, with a high near 17.
Wednesday Night
Mostly cloudy, with a low around 2.
Thursday
Sunny, with a high near 16.
Thursday Night
Partly cloudy, with a low around 1.
Friday
Mostly sunny, with a high near 18.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles ENE Harristown IL
39.84°N 89.03°W (Elev. 666 ft)
39.84°N 89.03°W (Elev. 666 ft)
8:36 am CST Jan 24, 2026
9am CST Jan 24, 2026-6pm CST Jan 30, 2026
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