Decatur Weather Tomorrow

18°

Light showers, feels like 18°.

Decatur, Illinois, United States · Wednesday, 4 November 2026

Low/High

10°/18°

Humidity

88%

Chance of rain

100%

Wind

23.4 km/h

2.4

Temperature Tomorrow

Decatur Weather Tomorrow by Time of Day

Decatur Weather Tomorrow by Time of Day
Time of day	Weather	Temperature	Chance of rain
Morning	Overcast	14–17°C	28%
Afternoon	Overcast	12–14°C	0%
Evening	Overcast	11–12°C	0%
Night	Overcast	10–10°C	0%

Decatur Weather Tomorrow — Wednesday, 4 November 2026

Decatur Weather Tomorrow — Wednesday, 4 November 2026
Date	Low/High	Weather	Chance of rain	Wind	Summary
Wed 4 Nov	10 °/18 °	Light showers	100%	23 km/h	Wed 4 Nov Weather Low/High10°/18° Humidity88% Pressure983 hPa Sunrise/Sunset 06:28 16:50

Decatur Hourly Weather Tomorrow

Decatur Hourly Weather Tomorrow
Time	Weather	Temperature	Feels like	Rain	Humidity	Wind
Wednesday, 4 November 2026
00:00	Moderate rain	18°	18°	100%	95%	17 km/h
01:00	Light showers	18°	17°	94%	91%	23 km/h
02:00	Light showers	18°	17°	84%	94%	20 km/h
03:00	Overcast	18°	17°	71%	94%	18 km/h
04:00	Overcast	17°	17°	51%	92%	17 km/h
05:00	Overcast	17°	16°	28%	90%	15 km/h
06:00	Overcast	16°	16°	10%	90%	14 km/h
07:00	Overcast	15°	14°	4%	92%	16 km/h
08:00	Overcast	15°	14°	3%	92%	17 km/h
09:00	Overcast	15°	13°	3%	88%	19 km/h
10:00	Overcast	15°	12°	2%	84%	21 km/h
11:00	Overcast	14°	12°	1%	83%	20 km/h
12:00	Overcast	14°	12°	0%	82%	18 km/h
13:00	Overcast	14°	12°	0%	82%	18 km/h
14:00	Overcast	13°	10°	0%	87%	18 km/h
15:00	Overcast	12°	10°	0%	87%	16 km/h
16:00	Overcast	12°	10°	0%	88%	14 km/h
17:00	Overcast	12°	9°	0%	86%	15 km/h
18:00	Overcast	11°	9°	0%	88%	14 km/h
19:00	Partly cloudy	11°	9°	0%	88%	16 km/h
20:00	Partly cloudy	11°	8°	0%	88%	16 km/h
21:00	Overcast	10°	7°	0%	86%	16 km/h
22:00	Overcast	10°	7°	0%	86%	15 km/h
23:00	Partly cloudy	10°	7°	0%	89%	17 km/h

Summary

Tomorrow, Wednesday 4 November 2026, the weather in Decatur is forecast to be light showers, with temperatures of 10–18°C and a chance of rain of up to 100%, highest around 00:00 local time. Take an umbrella or a rain jacket.

Updated at 21:48 local time, 3 November 2026

Decatur Hourly Temperature and Chance of Rain

Decatur Air Quality

Good · AQI 37

Air quality is good and poses little or no risk for outdoor activity.

PM2.5 (µg/m³)2.6

PM10 (µg/m³)3.3

O₃ (µg/m³)69

NO₂ (µg/m³)2.2

SO₂ (µg/m³)0.6

CO (µg/m³)141

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Weather Near Decatur

Springfield 59 km Champaign 68 km Bloomington 72 km Peoria 109 km North Peoria 111 km St. Louis 172 km St. Charles 175 km O'Fallon 188 km

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