Today, Illinois will experience cool weather, with temperatures ranging between 5 °F and 10 °F. It'll be quite breezy in Illinois Today with average wind speeds of 27 km/h. Heavy showers are forecasted, reaching up to 12 mm.

10° / 5°

Temp

89%

Rain

27 km/h

Wind

76%

Humidity

Illinois Weather Pages

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Illinois hourly forecast for today

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	12:00 AM	01:00 AM	02:00 AM	03:00 AM	04:00 AM	05:00 AM	06:00 AM	06:05 AM	07:00 AM	08:00 AM	09:00 AM	10:00 AM	11:00 AM	12:00 PM	01:00 PM	02:00 PM	03:00 PM	04:00 PM	05:00 PM	06:00 PM	07:00 PM	07:35 PM	08:00 PM	09:00 PM	10:00 PM	11:00 PM
weather																											Next
temperatures	16.6°	16.2°	16°	15.8°	14.6°	12.4°	9.8°	Sunrise	8.2°	7.3°	6.9°	7.1°	7.8°	8.3°	9°	9.2°	9.1°	9.2°	9.2°	9°	8°	Sunset	7°	6.1°	7°	5.5°
feels like	16.6°	16.2°	16°	15.8°	13.6°	10.6°	6.9°		4.7°	3.5°	3.1°	3.5°	4.5°	5.2°	5.9°	6°	5.9°	5.9°	6°	5.8°	4.6°		3.4°	2.3°	3.9°	2.1°
wind speed	24 km/h	19 km/h	22 km/h	19 km/h	22 km/h	26 km/h	21 km/h		21 km/h	24 km/h	24 km/h	19 km/h	21 km/h	22 km/h	24 km/h	23 km/h	26 km/h	25 km/h	27 km/h	26 km/h	23 km/h		22 km/h	20 km/h	16 km/h	14 km/h
wind degree	195°	217°	267°	265°	275°	284°	292°		302°	299°	306°	298°	294°	288°	287°	282°	281°	282°	285°	290°	291°		287°	287°	285°	280°
wind direction	SSW	SW	W	W	W	WNW	WNW		WNW	WNW	NW	WNW	WNW	WNW	WNW	WNW	W	WNW	WNW	WNW	WNW		WNW	WNW	WNW	W
Precipitation	6.9 mm	2.2 mm	0.9 mm	0.7 mm	0.1 mm	0.1 mm	0 mm		1.2 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm		0 mm	0 mm	0 mm	0 mm
chance for rain	100%	100%	100%	100%	100%	100%	74%		100%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%		0%	0%	0%	0%
chance for snow	0%	0%	0%	0%	0%	0%	0%		0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%		0%	0%	0%	0%
humidity	93%	92%	92%	92%	91%	91%	90%		96%	92%	84%	78%	73%	70%	67%	61%	58%	57%	58%	60%	64%		69%	71%	73%	42%
dew point	14.7°	14.7°	14.5°	14.5°	14.1°	12°	8.7°		6.5°	5.4°	4°	3.1°	2.7°	3.3°	3°	2.7°	1.7°	1.2°	1.4°	1.8°	2.3°		1.6°	1.2°	0.9°	-4.3°
visibility	7 km	5 km	7 km	10 km	10 km	10 km	10 km		10 km	10 km	10 km	10 km	10 km	10 km	10 km	10 km	10 km	10 km	10 km	10 km	10 km		10 km	10 km	10 km	10 km
cloud cover	99%	86%	80%	100%	100%	100%	100%		100%	100%	100%	100%	77%	13%	21%	0%	0%	0%	0%	0%	0%		0%	0%	0%	6%
UV	0	0	0	0	0	0	0		0.1	0.5	1.2	3	5.3	6.5	6.9	6.2	4.7	3	1.5	0.5	0.1		0	0	0	0

View of Illinois today

Explore Illinois live webcam feed to see how the weather is shaping up today in Illinois. See what people are wearing, check out the sky, and get a sense of the atmosphere before you step outside.

Stay informed and make the most of your day with our live weather updates from Illinois today.

Weather in Illinois today

The temperature today in Illinois is expected to be typical for this time of year, with a forecast of 10 °F, closely aligning with the historical average for April 18th.

temperatures

10 °F

rain

12 mm

wind

27 km/h

1.7

Low

Illinois Today Weather Indexes for Outdoor Activities & Health

Live indexes for outdoor activities, pollen allergies, air quality (AQI), UV index and health in Illinois - Saturday, April 18th, 2026

Illinois daylight overview ☀️

Today in Illinois, The sun rises at 06:05 and sets at 19:35, giving a total daylight duration of 13 hours and 30 minutes.

Counties in Illinois

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Champaign County Cook County DuPage County Effingham County Kane County Macon County McLean County Peoria County Sangamon County Will County Williamson County Winnebago County

Top locations in Illinois

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Aurora Champaign Chicago Decatur Effingham Energy Joliet Peoria Rockford Springfield

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What to wear today in Illinois? clothing recommendations

Stay comfortably stylish - your tailored guide for today's Illinois forecast.

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The weather today in Illinois - FAQ

What is the maximum temperature for today in Illinois?

The maximum temperature for today in Illinois is expected to be 10° degrees. Please dress accordingly to stay comfortable throughout the day.

Will it rain today in Illinois? 🌧️

Yes, there is a 89% chance of rain in Illinois today. We recommend carrying an umbrella or rain gear to stay dry.

What will be the wind speed today in Illinois? 🌀

The wind in Illinois is expected to blow at 27 km/h. This could affect outdoor activities, so plan accordingly.

How should I dress for the weather in Illinois today?

Given the forecast of 10 °F with a 89% chance of rain, we advise checking our "What to wear today" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in Illinois today.

What is the sunrise and sunset time for Illinois today?

The sun is expected to rise at 06:05 and set at 19:35 in Illinois.

How accurate is the weather forecast Illinois today? ✅

Illinois weather forecast for today is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.

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Where is Illinois?

Get accurate weather forecasts for Illinois, located at latitude 41.85 and longitude -87.65. Stay updated with localized weather information tailored for Illinois.

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Today weather in Illinois

Illinois hourly forecast for today

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Weather in Illinois today

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