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Weather in Decatur, Illinois, USA

Now
11 °F

Clear.


Feels Like: 11 °F
Forecast: 28 / 13 °F
Wind: No wind

Location: Decatur Airport
Current Time: Feb 4, 2026 at 3:16:05 am
Latest Report: Feb 4, 2026 at 1:54 am
Visibility: 10 mi
Pressure: 30.34 "Hg
Humidity: 88%
Dew Point: 8 °F

Upcoming 5 hours

Now 4:00 am 5:00 am 6:00 am 7:00 am 8:00 am
11 °F 16 °F 15 °F 14 °F 14 °F 15 °F

See more hour-by-hour weather

Forecast for the next 48 hours

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  Wednesday Thursday
  Night Morning Afternoon Evening Night Morning Afternoon
Forecast
Temperature 17 °F 17 °F 26 °F 19 °F 14 °F 20 °F 32 °F
Mostly clear. Broken clouds. Overcast. Partly cloudy. Mostly cloudy. Overcast. Overcast.
Feels Like 8 °F 8 °F 19 °F 13 °F 7 °F 10 °F 22 °F
Wind Speed 6 mph 7 mph 7 mph 4 mph 4 mph 8 mph 13 mph
Wind Direction NNE
NE
N
E
S
SSW
S
Humidity 88% 87% 69% 85% 88% 79% 71%
Dew Point 14 °F 14 °F 17 °F 15 °F 11 °F 15 °F 23 °F
Visibility 6 mi 7 mi 6 mi 6 mi 6 mi 5 mi 7 mi
Probability of Precipitation 0% 0% 0% 0% 0% 0% 0%
Amount of Rain 0.00" 0.00" 0.00" 0.00" 0.00" 0.00" 0.00"
Amount of Snow 0.00" 0.00" 0.00" 0.00" 0.00" 0.00" 0.00"
* Updated Wednesday, February 4, 2026 1:42:35 am Decatur time - Weather by CustomWeather, © 2026

14 day forecast, day-by-day Hour-by-hour forecast for next week

Yesterday's weather

Overcast. 30 / 16 °F
Humidity: 81%. Wind: 8 mph from Northeast

More weather last week

Currently at nearby stations

11 °F

Taylorville Municipal Airport: (29 mi)

Clear.

15 °F

University Of Illinois-Willard Airport: (38 mi)

Overcast. (1 hour ago)

14 °F

Bloomington / Normal: (44 mi)

Clear. (1 hour ago)

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Forecast for the next 2 weeks

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View historic weather

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Detailed forecast for 14 days