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Illinois weather in April

Thinking about venturing to Illinois this April and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What is the weather like in Illinois in April?

Illinois is a region in the United States of America. Illinois 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.

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

In April, precipitation varies across different areas. From moderate rainfall in Lincoln with an average of 89 mm to high rainfall in Marion with 149 mm. The days are mostly sunny, with an average total of around 217 hours of sunshine in Chicago. The sunlight during this month doesn't just make the days brighter, it also seems to make everyone a bit more cheerful.

For specific regional insights in Illinois for April, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our Illinois climate page.

Where to go in Illinois in April

Find the average weather conditions in April for the most popular destinations in Illinois on the map below. Click on a destination dot for more detailed information.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in Illinois

What is the weather like in April for the 5 most popular destinations in Illinois?

Average weather in Chicago

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

Chicago
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   March March
<<  
8°C 
-1°C 
189 hours 
64 mm 
11 days 
poor 
15°C 
4°C 
217 hours 
102 mm 
13 days 
May   >> May
>>  
21°C 
11°C 
282 hours 
118 mm 
12 days 
Climate in Chicago

Average weather in Schaumburg

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

Schaumburg
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   March March
<<  
8°C 
-3°C 
189 hours 
61 mm 
10 days 
poor 
15°C 
3°C 
217 hours 
102 mm 
13 days 
May   >> May
>>  
22°C 
9°C 
282 hours 
103 mm 
13 days 
Climate in Schaumburg

Average weather in Rosemont

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

Rosemont
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   March March
<<  
8°C 
-1°C 
189 hours 
63 mm 
11 days 
poor 
15°C 
4°C 
217 hours 
101 mm 
12 days 
May   >> May
>>  
21°C 
11°C 
282 hours 
117 mm 
12 days 
Climate in Rosemont

Average weather in Joliet

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

Joliet
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   March March
<<  
9°C 
-1°C 
189 hours 
66 mm 
11 days 
poor 
16°C 
4°C 
217 hours 
99 mm 
13 days 
May   >> May
>>  
22°C 
10°C 
282 hours 
113 mm 
13 days 
Climate in Joliet

Average weather in Naperville

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

Naperville
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   March March
<<  
9°C 
-2°C 
189 hours 
62 mm 
10 days 
poor 
16°C 
3°C 
217 hours 
105 mm 
13 days 
May   >> May
>>  
22°C 
10°C 
282 hours 
117 mm 
13 days 
Climate in Naperville

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

Is April the best time to visit Illinois?

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

On average, the best time to visit Illinois 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. Interested in the weather conditions in a specific month? Select the month below.

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  • 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 climate conditions. Find out where to go with our weather planner.