Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
23°F
-5°C
| Humidity | 72% |
| Wind Speed | E 7 mph |
| Barometer | 30.27 in (1026.3 mb) |
| Dewpoint | 15°F (-9°C) |
| Visibility | 10.00 mi |
| Wind Chill | 15°F (-9°C) |
| Last update | 8 Dec 2:54 pm CST |
Extended Forecast for
3 Miles W Arthur IL
This Afternoon
High: 26 °F
Sunny
Tonight
Low: 17 °F⇑
Mostly Cloudy
Tuesday
High: 40 °F
Partly Sunny
Tuesday Night
Low: 35 °F
Breezy.
Cloudy then
Chance RainWednesday
High: 41 °F⇓
Breezy.
Scattered
Rain/Snow
then Mostly
CloudyWednesday Night
Low: 21 °F
Mostly Cloudy
Thursday
High: 31 °F
Chance Snow
Thursday Night
Low: 20 °F
Chance Snow
Friday
High: 28 °F
Chance Snow
then Mostly
Cloudy
Detailed Forecast
This Afternoon
Sunny, with a high near 26. Calm wind.
Tonight
Mostly cloudy, with a temperature rising to around 27 by 5am. Light south southeast wind becoming south southwest 10 to 15 mph in the evening. Winds could gust as high as 22 mph.
Tuesday
Partly sunny, with a high near 40. Southwest wind 13 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 35. Breezy, with a south southwest wind 15 to 24 mph, with gusts as high as 37 mph.
Wednesday
Scattered rain showers, mixing with snow after 9am, then gradually ending. Mostly cloudy, with a temperature falling to around 32 by 5pm. Breezy, with a west wind 17 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 40%.
Wednesday Night
Mostly cloudy, with a low around 21. West northwest wind 8 to 14 mph, with gusts as high as 20 mph.
Thursday
A 40 percent chance of snow. Mostly cloudy, with a high near 31. West wind 6 to 8 mph.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 20.
Friday
A 30 percent chance of snow before noon. Mostly cloudy, with a high near 28.
Friday Night
Mostly cloudy, with a low around 7.
Saturday
Mostly cloudy, with a high near 15.
Saturday Night
Mostly cloudy, with a low around 4.
Sunday
Mostly sunny, with a high near 20.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles W Arthur IL
39.72°N 88.52°W (Elev. 682 ft)
39.72°N 88.52°W (Elev. 682 ft)
3:36 pm CST Dec 8, 2025
3pm CST Dec 8, 2025-6pm CST Dec 14, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
