Chicago

Illinois Weather in April

Average temperatures, rainfall, sunshine and the best places to visit in Illinois, the United States of America in April.

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Chicago Schaumburg Rosemont Joliet

Considering a trip to Illinois, the United States of America this April and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in Illinois in April

Illinois, the United States of America is a region in the United States of America. Illinois, the United States of America has a wide variety of climate types. During April, you can expect temperatures that range from cold to pleasant and precipitation levels ranging from moderate to high.

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is cold in Zion at 12°C (54°F) to pleasant in Metropolis at 21°C (70°F). Nighttime temperatures generally drop to 9°C (48°F) in Metropolis and 3°C (37°F) in Zion.

To learn more about the conditions in specific areas of Illinois, the United States of America, check out the map below.

Precipitation

In April, precipitation varies across different areas. From moderate rainfall in Lincoln with an average of 89 mm (3.5 in) to high rainfall in Marion with 149 mm (5.9 in).

Average sunshine

Several destinations enjoy plenty of sunshine this month. Chicago sees close to 217 hours of sunlight, making it great for sun lovers.

Explore Illinois by month

Pick a month to see the average temperature, rainfall and sunshine in Illinois — and find the best time to visit. (based on Chicago)

January-1°C (30°F) February0°C (32°F) March8°C (46°F) April15°C (59°F) May21°C (70°F) June26°C (79°F) This monthJuly29°C (84°F) August28°C (82°F) September24°C (75°F) October17°C (63°F) November9°C (48°F) December3°C (37°F)
Best Time to Visit Illinois →

Best Places to Visit in Illinois in April

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Illinois.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Illinois

What is the weather like in April for some of the most popular destinations in Illinois, the United States of America?

Temperature range in Illinois (April)

Precipitation variation in Illinois (April)

Chicago

In April Chicago generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 4°C (39°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

« March
April
May »
March
April
May
Max temperature
8°C (46°F)
15°C (59°F)
21°C (70°F)
Min temperature
-1°C (30°F)
4°C (39°F)
11°C (52°F)
Monthly sun hours
189 hours
217 hours
282 hours
Monthly rainfall
64 mm (2.5 in)
102 mm (4 in)
118 mm (4.6 in)
Monthly rainy days
11 days
13 days
12 days
Weather conditions
poor
unpleasant
pleasant
Climate in Chicago →

Schaumburg

In April Schaumburg generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 3°C (37°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

« March
April
May »
March
April
May
Max temperature
8°C (46°F)
15°C (59°F)
22°C (72°F)
Min temperature
-3°C (27°F)
3°C (37°F)
9°C (48°F)
Monthly sun hours
189 hours
217 hours
282 hours
Monthly rainfall
61 mm (2.4 in)
102 mm (4 in)
103 mm (4.1 in)
Monthly rainy days
10 days
13 days
13 days
Weather conditions
poor
unpleasant
pleasant
Climate in Schaumburg →

Rosemont

In April Rosemont generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 4°C (39°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

« March
April
May »
March
April
May
Max temperature
8°C (46°F)
15°C (59°F)
21°C (70°F)
Min temperature
-1°C (30°F)
4°C (39°F)
11°C (52°F)
Monthly sun hours
189 hours
217 hours
282 hours
Monthly rainfall
63 mm (2.5 in)
101 mm (4 in)
117 mm (4.6 in)
Monthly rainy days
11 days
12 days
12 days
Weather conditions
poor
unpleasant
pleasant
Climate in Rosemont →

Joliet

In April Joliet generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 4°C (39°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

« March
April
May »
March
April
May
Max temperature
9°C (48°F)
16°C (61°F)
22°C (72°F)
Min temperature
-1°C (30°F)
4°C (39°F)
10°C (50°F)
Monthly sun hours
189 hours
217 hours
282 hours
Monthly rainfall
66 mm (2.6 in)
99 mm (3.9 in)
113 mm (4.4 in)
Monthly rainy days
11 days
13 days
13 days
Weather conditions
poor
tolerable
pleasant
Climate in Joliet →

Naperville

In April Naperville generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 3°C (37°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

« March
April
May »
March
April
May
Max temperature
9°C (48°F)
16°C (61°F)
22°C (72°F)
Min temperature
-2°C (28°F)
3°C (37°F)
10°C (50°F)
Monthly sun hours
189 hours
217 hours
282 hours
Monthly rainfall
62 mm (2.4 in)
105 mm (4.1 in)
117 mm (4.6 in)
Monthly rainy days
10 days
13 days
13 days
Weather conditions
poor
unpleasant
pleasant
Climate in Naperville →

Is your destination not in the list? Have a look at all destinations in Illinois, in the United States of America.

Popular cities in April

Day & night temperatures, rainfall and average weather in Illinois in April.

City Weather Day temp Night temp Rainfall
Chicago 15°C (59°F) 4°C (39°F) 102 mm (4 in)
Schaumburg 15°C (59°F) 3°C (37°F) 102 mm (4 in)
Rosemont 15°C (59°F) 4°C (39°F) 101 mm (4 in)
Joliet 16°C (61°F) 4°C (39°F) 99 mm (3.9 in)
Naperville 16°C (61°F) 3°C (37°F) 105 mm (4.1 in)
Waukegan 12°C (54°F) 3°C (37°F) 104 mm (4.1 in)

Illinois weather in April: frequently asked questions

What is the weather like in Illinois, the United States of America in April?

In April, Illinois, the United States of America generally has unpleasant weather conditions. Chicago sees daytime temperatures near 15°C (59°F), with nights cooling to roughly 4°C (39°F).

What is the average temperature in Illinois, the United States of America in April?

Daytime temperatures in Chicago peak at roughly 15°C (59°F) in April, dropping to about 4°C (39°F) overnight.

Does Illinois, the United States of America get a lot of rain in April?

Chicago typically receives notable rainfall in April, about 102 mm (4 in) on average across Illinois, the United States of America.

Is April a Good Time to Visit Illinois, the United States of America?

In our view, April might not be the best time to travel to Illinois, the United States of America with often unpleasant weather in Chicago.

On average, the best time to visit Illinois, the United States of America is in September with generally perfect weather in Chicago. The weather in January, February, March, November and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Illinois.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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