Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
56°F
13°C
| Humidity | 60% |
| Wind Speed | W 9 mph |
| Barometer | 29.93 in (1013.7 mb) |
| Dewpoint | 42°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 15 Feb 3:54 pm CST |
Extended Forecast for
4 Miles N Forsyth IL
Tonight
Low: 39 °F
Mostly Clear
then Patchy
FogWashington's Birthday
High: 62 °F
Patchy Fog
then Mostly
SunnyMonday Night

Low: 40 °F
Partly Cloudy
Tuesday
High: 60 °F
Mostly Cloudy
then Cloudy
and BreezyTuesday Night
Low: 54 °F
Breezy.
Mostly Cloudy
then Chance
RainWednesday

High: 68 °F
Becoming
Sunny and
BreezyWednesday Night

Low: 42 °F
Partly Cloudy
Thursday
High: 67 °F
Partly Sunny
then Chance
RainThursday Night
Low: 35 °F
Chance Rain
then Partly
Cloudy
Detailed Forecast
Tonight
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 39. Southwest wind 5 to 7 mph.
Washington's Birthday
Patchy fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 62. South southwest wind 8 to 16 mph, with gusts as high as 24 mph.
Monday Night
Partly cloudy, with a low around 40. South wind around 10 mph, with gusts as high as 17 mph.
Tuesday
Mostly cloudy, with a high near 60. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.
Tuesday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 54. Breezy, with a south wind 18 to 24 mph, with gusts as high as 33 mph.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 68. Breezy, with a west southwest wind 15 to 23 mph, with gusts as high as 32 mph.
Wednesday Night
Partly cloudy, with a low around 42. West southwest wind 8 to 11 mph becoming east southeast after midnight. Winds could gust as high as 17 mph.
Thursday
A 30 percent chance of rain after noon. Mostly sunny, with a high near 67.
Thursday Night
A 30 percent chance of rain before midnight. Partly cloudy, with a low around 35.
Friday
Mostly sunny, with a high near 49.
Friday Night
A chance of rain. Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
Mostly clear, with a low around 24.
Sunday
Mostly sunny, with a high near 41.
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)
3:36 pm CST Feb 15, 2026
4pm CST Feb 15, 2026-6pm CST Feb 22, 2026



