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Hour-by-Hour Forecast for Decatur, Illinois, USA

Currently: 38 °F. Sunny. (Weather station: Decatur Airport, USA). See more current weather

Hour-by-hour Forecast in Decatur — Graph

°F

Detailed Hourly Forecast — Next 24 hours

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 ConditionsComfortPrecipitation
Time TempWeatherFeels LikeWind HumidityChanceAmount
11:00 am
Wed, Jan 21
37 °FMostly sunny.28 °F16 mph52%0%0.00" (snow)
0.00" (rain)
12:00 pm39 °FMostly sunny.29 °F17 mph49%0%0.00" (snow)
0.00" (rain)
1:00 pm40 °FSunny.31 °F16 mph46%0%0.00" (snow)
0.00" (rain)
2:00 pm40 °FSunny.32 °F16 mph44%0%0.00" (snow)
0.00" (rain)
3:00 pm40 °FSunny.32 °F16 mph44%0%0.00" (snow)
0.00" (rain)
4:00 pm39 °FSunny.31 °F14 mph46%0%0.00" (snow)
0.00" (rain)
5:00 pm35 °FSunny.27 °F12 mph53%0%0.00" (snow)
0.00" (rain)
6:00 pm34 °FClear.25 °F11 mph58%0%0.00" (snow)
0.00" (rain)
7:00 pm33 °FScattered clouds.24 °F12 mph60%0%0.00" (snow)
0.00" (rain)
8:00 pm33 °FBroken clouds.24 °F13 mph61%0%0.00" (snow)
0.00" (rain)
9:00 pm33 °FOvercast.24 °F14 mph62%0%0.00" (snow)
0.00" (rain)
10:00 pm32 °FBroken clouds.22 °F13 mph62%0%0.00" (snow)
0.00" (rain)
11:00 pm29 °FScattered clouds.19 °F14 mph62%0%0.00" (snow)
0.00" (rain)
12:00 am
Thu, Jan 22
28 °FScattered clouds.16 °F16 mph61%0%0.00" (snow)
0.00" (rain)
1:00 am26 °FMostly clear.14 °F14 mph60%0%0.00" (snow)
0.00" (rain)
2:00 am24 °FMostly clear.13 °F12 mph59%0%0.00" (snow)
0.00" (rain)
3:00 am23 °FScattered clouds.12 °F10 mph59%0%0.00" (snow)
0.00" (rain)
4:00 am22 °FBroken clouds.12 °F9 mph58%0%0.00" (snow)
0.00" (rain)
5:00 am21 °FMostly cloudy.12 °F8 mph59%0%0.00" (snow)
0.00" (rain)
6:00 am20 °FOvercast.12 °F7 mph59%0%0.00" (snow)
0.00" (rain)
7:00 am19 °FOvercast.9 °F8 mph61%0%0.00" (snow)
0.00" (rain)
8:00 am20 °FOvercast.9 °F10 mph61%0%0.00" (snow)
0.00" (rain)
9:00 am23 °FOvercast.12 °F11 mph55%0%0.00" (snow)
0.00" (rain)
10:00 am26 °FOvercast.15 °F11 mph49%0%0.00" (snow)
0.00" (rain)
* Updated Wednesday, January 21, 2026 7:42:42 am Decatur time - Weather by CustomWeather, © 2026

14 days extended forecast