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Weather in Illinois for April 2027

Your guide to Illinois weather in April - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Illinois during April is quite rare, with fewer than 2 snowy days on average.

    • Temperatures

  • In general, the average temperature in Illinois at the beginning of April is 9.5 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 12.9 °C by the end of April.

    • Rain 🌧️

  • The climate of Illinois in April is notably wet, with an average of 11 rainy days, and a total of 185.5 mm of precipitation.

    • More

  • Is April a good time to visit Illinois? check out the best time to travel to Illinois page.

  • ✨ Is April a good time to visit Illinois? – Ask the AI Weatherman

Average dry days
18
Dry days
Average rainy days
11
Rainy days
Average snowy days
1
Snow days
Average temperatures
12°/5°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Illinois Weather April

Move between months or click on a day
March
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light rain
6°
2
Moderate rain
10°
3
Light rain
10°
4
Moderate rain
13°
5
Light rain
11°
6
Patchy rain possible
10°
7
Patchy rain possible
7°
8
Patchy rain possible
11°
9
Light rain
10°
10
Moderate rain
11°
11
Light rain
11°
12
Patchy rain possible
15°
13
Light rain
17°
14
Overcast
15°
15
Moderate rain
13°
16
Light rain
12°
17
Patchy rain possible
11°
18
Moderate rain
12°
19
Overcast
11°
20
Light rain
10°
21
Heavy rain at times
14°
22
Patchy rain possible
13°
23
Light rain shower
16°
24
Light rain
13°
25
Patchy rain possible
10°
26
Patchy rain possible
11°
27
Moderate rain
16°
28
Light rain
16°
29
Heavy rain at times
14°
30
Light rain
11°

What’s the Weather Like in Illinois This April?

Discover the average temperatures and weather trends across Illinois’s cities this April.
Patchy rain possibleChicago12 °C / 5 °CCloudyRockford14 °C / 5 °CCloudyPeoria17 °C / 8 °CCloudySpringfield18 °C / 9 °CCloudyDecatur18 °C / 9 °CCloudyEffingham19 °C / 9 °CCloudyChampaign18 °C / 8 °CCloudyAurora15 °C / 6 °CPatchy rain possibleBloomington18 °C / 8 °CCloudyJoliet16 °C / 7 °CCloudyNaperville15 °C / 6 °CCloudyEnergy20 °C / 10 °CMore Locations

Temperatures trend during April in Illinois

See the weather trend as well as the moving average line

April weather in Illinois day by day

Click on a date for more information
March May
Date Weather Temperatures Rain Snow More
Apr. 1 Light rain
Light rain
 6° /1° 6.9 mm 0 cm
Apr. 2 Moderate rain
Moderate rain
 10° /2° 23.3 mm 0.4 cm
Apr. 3 Light rain
Light rain
 10° /3° 9.5 mm 0.8 cm
Apr. 4 Moderate rain
Moderate rain
 13° /5° 13.7 mm 0.5 cm
Apr. 5 Light rain
Light rain
 11° /5° 8.2 mm 0 cm
Apr. 6 Patchy rain possible
Patchy rain possible
 10° /4° 2.4 mm 0 cm
Apr. 7 Patchy rain possible
Patchy rain possible
 7° /4° 2.3 mm 0 cm
Apr. 8 Patchy rain possible
Patchy rain possible
 11° /4° 2.4 mm 0 cm
Apr. 9 Light rain
Light rain
 10° /5° 7.3 mm 0 cm
Apr. 10 Moderate rain
Moderate rain
 11° /5° 10.6 mm 0 cm
Apr. 11 Light rain
Light rain
 11° /5° 4.3 mm 0 cm
Apr. 12 Patchy rain possible
Patchy rain possible
 15° /7° 0.8 mm 0 cm
Apr. 13 Light rain
Light rain
 17° /9° 6.9 mm 0 cm
Apr. 14 Overcast
Overcast
 15° /9° 0 mm 0 cm
Apr. 15 Moderate rain
Moderate rain
 13° /7° 19.4 mm 0 cm
Apr. 16 Light rain
Light rain
 12° /5° 8.5 mm 0 cm
Apr. 17 Patchy rain possible
Patchy rain possible
 11° /4° 1.5 mm 0 cm
Apr. 18 Moderate rain
Moderate rain
 12° /5° 11.7 mm 0 cm
Apr. 19 Overcast
Overcast
 11° /5° 0.4 mm 0 cm
Apr. 20 Light rain
Light rain
 10° /5° 2.8 mm 0 cm
Apr. 21 Heavy rain at times
Heavy rain at times
 14° /6° 6.8 mm 0 cm
Apr. 22 Patchy rain possible
Patchy rain possible
 13° /6° 2.3 mm 0 cm
Apr. 23 Light rain shower
Light rain shower
 16° /9° 1.7 mm 0 cm
Apr. 24 Light rain
Light rain
 13° /8° 3.8 mm 0 cm
Apr. 25 Patchy rain possible
Patchy rain possible
 10° /5° 1 mm 0 cm
Apr. 26 Patchy rain possible
Patchy rain possible
 11° /4° 1.9 mm 0 cm
Apr. 27 Moderate rain
Moderate rain
 16° /7° 12 mm 0 cm
Apr. 28 Light rain
Light rain
 16° /9° 4.6 mm 0 cm
Apr. 29 Heavy rain at times
Heavy rain at times
 14° /8° 5.3 mm 0 cm
Apr. 30 Light rain
Light rain
 11° /7° 3.2 mm 0 cm
Next
Important Notice
Our weather forecast for Illinois in April is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Illinois forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Illinois in April - FAQ

What are the expected maximum and minimum temperatures in Illinois during April?
During April, expect a variety of temperatures with highs around 12° and lows near 5°, suitable for diverse activities and preferences.

How much rainfall should be expected in Illinois during April?
Significant rainfall exceeding 185.5 mm is expected in Illinois during April, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Illinois in April 2027?
Illinois typically sees 1.7 cm of snowfall during April.

What are the typical wind conditions in Illinois during April?
The average wind speed in Illinois during April is 24 km/h, suggesting breezy to windy conditions, depending on your activities.

Illinois snow forecast April 2027

Track daily snowfall levels and discover Illinois’s snowy potential this April ❄️
On average, Illinois sees 1 snowy days during April, with approximately 1.7 cm of total snowfall.

April rainfall patterns in Illinois

Explore the daily rainfall trends and prepare for Illinoiss April weather 💧
Typically, Illinois has 11 rainy days in April with a total of 185.5 mm of rainfall.
Counties in Illinois
Select a county for an accurate weather forecast
Champaign CountyCook CountyDuPage CountyEffingham CountyKane CountyMacon CountyMcLean CountyPeoria CountyPulaski CountySangamon CountyWill CountyWilliamson CountyWinnebago County
Top locations in Illinois
Select a location for an accurate weather forecast
AuroraBloomingtonChampaignChicagoDecaturEffinghamJolietPeoriaRockfordSpringfield
More Locations
Quick links
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