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

Currently: 36 °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
7:00 pm
Wed, Jan 21
33 °FMostly clear.23 °F12 mph57%0%0.00" (snow)
0.00" (rain)
8:00 pm34 °FBroken clouds.24 °F14 mph56%0%0.00" (snow)
0.00" (rain)
9:00 pm34 °FCloudy.24 °F16 mph58%0%0.00" (snow)
0.00" (rain)
10:00 pm32 °FBroken clouds.22 °F14 mph59%0%0.00" (snow)
0.00" (rain)
11:00 pm29 °FScattered clouds.18 °F14 mph61%0%0.00" (snow)
0.00" (rain)
12:00 am
Thu, Jan 22
28 °FMostly clear.15 °F16 mph62%0%0.00" (snow)
0.00" (rain)
1:00 am26 °FMostly clear.14 °F14 mph62%0%0.00" (snow)
0.00" (rain)
2:00 am25 °FMostly clear.14 °F12 mph63%0%0.00" (snow)
0.00" (rain)
3:00 am24 °FClear.13 °F10 mph63%0%0.00" (snow)
0.00" (rain)
4:00 am23 °FScattered clouds.13 °F9 mph63%0%0.00" (snow)
0.00" (rain)
5:00 am22 °FMostly cloudy.12 °F8 mph63%0%0.00" (snow)
0.00" (rain)
6:00 am21 °FOvercast.12 °F7 mph62%0%0.00" (snow)
0.00" (rain)
7:00 am20 °FOvercast.10 °F8 mph64%0%0.00" (snow)
0.00" (rain)
8:00 am20 °FOvercast.10 °F9 mph64%0%0.00" (snow)
0.00" (rain)
9:00 am24 °FOvercast.13 °F10 mph58%0%0.00" (snow)
0.00" (rain)
10:00 am27 °FCloudy.17 °F11 mph51%0%0.00" (snow)
0.00" (rain)
11:00 am29 °FMostly cloudy.20 °F12 mph45%0%0.00" (snow)
0.00" (rain)
12:00 pm31 °FBroken clouds.22 °F12 mph41%0%0.00" (snow)
0.00" (rain)
1:00 pm33 °FMostly cloudy.24 °F12 mph38%0%0.00" (snow)
0.00" (rain)
2:00 pm34 °FCloudy.25 °F12 mph36%0%0.00" (snow)
0.00" (rain)
3:00 pm34 °FOvercast.25 °F12 mph36%0%0.00" (snow)
0.00" (rain)
4:00 pm33 °FOvercast.25 °F10 mph38%0%0.00" (snow)
0.00" (rain)
5:00 pm31 °FOvercast.23 °F8 mph43%0%0.00" (snow)
0.00" (rain)
6:00 pm30 °FOvercast.23 °F6 mph47%0%0.00" (snow)
0.00" (rain)
* Updated Wednesday, January 21, 2026 1:42:39 pm Decatur time - Weather by CustomWeather, © 2026

14 days extended forecast