Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
57°F
14°C
| Humidity | 67% |
| Wind Speed | SW 12 G 22 mph |
| Barometer | 30.05 in (1017.9 mb) |
| Dewpoint | 46°F (8°C) |
| Visibility | 10.00 mi |
| Last update | 16 Feb 10:54 am CST |
Extended Forecast for
2 Miles ENE Harristown IL
Washington's Birthday
High: 62 °F
Decreasing
CloudsTonight
Low: 41 °F
Partly Cloudy
then Patchy
FogTuesday
High: 61 °F
Patchy Fog
then CloudyTuesday Night
Low: 55 °F
Breezy.
Mostly Cloudy
then Chance
RainWednesday
High: 67 °F
Sunny and
BreezyWednesday Night
Low: 43 °F
Partly Cloudy
Thursday
High: 67 °F
Mostly Sunny
then Chance
RainThursday Night
Low: 36 °F
Chance Rain
then Mostly
ClearFriday
High: 48 °F
Partly Sunny
Detailed Forecast
Washington's Birthday
Mostly cloudy, then gradually becoming sunny, with a high near 62. South southwest wind 11 to 15 mph, with gusts as high as 23 mph.
Tonight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 41. South wind 8 to 10 mph, with gusts as high as 18 mph.
Tuesday
A chance of sprinkles after 3pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 61. South wind 8 to 18 mph, with gusts as high as 31 mph.
Tuesday Night
A 50 percent chance of rain after midnight. Cloudy, then gradually becoming partly cloudy, with a low around 55. Breezy, with a south wind 20 to 23 mph, with gusts as high as 32 mph.
Wednesday
Sunny, with a high near 67. Breezy, with a west southwest wind 11 to 21 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 43. Southwest wind 7 to 9 mph becoming east southeast after midnight. Winds could gust as high as 15 mph.
Thursday
A 50 percent chance of rain after noon. Mostly sunny, with a high near 67. South southeast wind 8 to 15 mph, with gusts as high as 23 mph.
Thursday Night
A 40 percent chance of rain before midnight. Partly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 48.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Partly sunny, with a high near 44.
Saturday Night
A chance of rain. Partly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 37.
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)
11:36 am CST Feb 16, 2026
11am CST Feb 16, 2026-6pm CST Feb 22, 2026
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