Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Light Snow
13°F
-11°C
| Humidity | 77% |
| Wind Speed | SW 7 mph |
| Barometer | 30.14 in (1021.8 mb) |
| Dewpoint | 7°F (-14°C) |
| Visibility | 8.00 mi |
| Wind Chill | 3°F (-16°C) |
| Last update | 18 Jan 5:54 am CST |
Extended Forecast for
4 Miles N Forsyth IL
Cold Weather Advisory January 19, 03:00am until January 19, 12:00pm
Today
High: 24 °F
Partly Sunny
then Slight
Chance SnowTonight
Low: 4 °F
Blustery.
Chance Snow
then Mostly
CloudyM.L.King Day

High: 14 °F
Sunny and
BlusteryMonday Night

Low: 6 °F
Partly Cloudy
Tuesday

High: 29 °F
Mostly Sunny
Tuesday Night

Low: 22 °F
Mostly Cloudy
Wednesday

High: 37 °F
Mostly Sunny
Wednesday Night

Low: 17 °F
Partly Cloudy
Thursday

High: 29 °F
Mostly Sunny
Detailed Forecast
Today
A chance of flurries between 1pm and 5pm, then a slight chance of snow after 5pm. Increasing clouds, with a high near 24. Wind chill values between -1 and 9. South southwest wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Tonight
A chance of snow before 9pm, then a chance of flurries between 9pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 4. Wind chill values between -3 and -13. Blustery, with a southwest wind 11 to 16 mph becoming west northwest 18 to 23 mph in the evening. Winds could gust as high as 37 mph. Chance of precipitation is 30%.
M.L.King Day
Sunny, with a high near 14. Wind chill values between -8 and -18. Blustery, with a west northwest wind 20 to 25 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 34 mph.
Monday Night
Partly cloudy, with a low around 6. Wind chill values between -5 and zero. Southwest wind 6 to 10 mph, with gusts as high as 16 mph.
Tuesday
Mostly sunny, with a high near 29. South southwest wind 9 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 22. South wind 10 to 18 mph, with gusts as high as 24 mph.
Wednesday
Mostly sunny, with a high near 37. West wind 11 to 18 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 17.
Thursday
Mostly sunny, with a high near 29.
Thursday Night
Mostly cloudy, with a low around 21.
Friday
A chance of rain. Mostly cloudy, with a high near 37.
Friday Night
A chance of snow. Mostly cloudy, with a low around 16.
Saturday
A chance of snow. Partly sunny, with a high near 24.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles N Forsyth IL
39.97°N 88.96°W (Elev. 679 ft)
39.97°N 88.96°W (Elev. 679 ft)
5:37 am CST Jan 18, 2026
6am CST Jan 18, 2026-6pm CST Jan 24, 2026



