Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
36°F
2°C
| Humidity | 48% |
| Wind Speed | NW 13 mph |
| Barometer | 30.18 in (1022.6 mb) |
| Dewpoint | 18°F (-8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 27°F (-3°C) |
| Last update | 21 Feb 2:54 pm CST |
Extended Forecast for
3 Miles WSW Forsyth IL
This Afternoon
High: 37 °F
Sunny
Tonight
Low: 19 °F
Scattered
FlurriesSunday
High: 28 °F
Decreasing
Clouds and
BlusterySunday Night
Low: 14 °F
Mostly Cloudy
and Blustery
then Partly
CloudyMonday
High: 30 °F
Sunny
Monday Night
Low: 17 °F
Increasing
CloudsTuesday
High: 47 °F
Partly Sunny
then Mostly
Cloudy and
BreezyTuesday Night
Low: 35 °F
Mostly Cloudy
Wednesday
High: 51 °F
Partly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 37. West northwest wind 13 to 15 mph, with gusts as high as 20 mph.
Tonight
Scattered flurries after midnight. Increasing clouds, with a low around 19. Wind chill values between 5 and 15. Northwest wind 10 to 18 mph, with gusts as high as 28 mph.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 28. Wind chill values between 3 and 13. Blustery, with a northwest wind 20 to 23 mph, with gusts as high as 33 mph.
Sunday Night
Mostly cloudy, with a low around 14. Wind chill values between -1 and 9. Blustery, with a northwest wind 17 to 21 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 30. North northwest wind 9 to 18 mph, with gusts as high as 25 mph.
Monday Night
Increasing clouds, with a low around 17. Light and variable wind becoming south 5 to 8 mph after midnight.
Tuesday
Mostly cloudy, with a high near 47. 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
Mostly cloudy, with a low around 35.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 28.
Thursday
A chance of rain. Mostly sunny, with a high near 43.
Thursday Night
Mostly clear, with a low around 26.
Friday
Sunny, with a high near 55.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles WSW Forsyth IL
39.89°N 89.02°W (Elev. 656 ft)
39.89°N 89.02°W (Elev. 656 ft)
1:36 pm CST Feb 21, 2026
3pm CST Feb 21, 2026-6pm CST Feb 27, 2026
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