Temperature in Illinois in March

Daytime highs, nighttime lows and the warmest cities in Illinois, the United States of America this March.

Illinois, the United States of America, a region in the United States of America, experiences maximum daytime temperatures in March ranging from 5°C (41°F) in Roscoe to 15°C (59°F) in Metropolis. Nighttime temperatures generally drop to 3°C (37°F) in Metropolis and -7°C (19°F) in Roscoe.

What is the temperature of the different cities in Illinois, the United States of America in March?

Explore the map below to discover average March temperatures at the top destinations in Illinois. For a deeper dive, simply click on any destination dot.

Select a Month

Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

For a detailed overview over the year and the best time to visit Illinois, check out our Illinois's climate page.

See also: Illinois weather by month.

Best Places to Visit in Illinois in March

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

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in March: blue is cold, red is hot.

See all March weather averages, cities and regions in Illinois

Illinois temperatures in March: frequently asked questions

How hot does it get in Illinois, the United States of America in March?

Expect daytime temperatures around 8°C (46°F) in Chicago. That makes March a low month for Illinois, the United States of America.

How cold does it get at night in Illinois, the United States of America in March?

Average overnight lows in Illinois, the United States of America during March sit near -1°C (30°F) in Chicago.

What is the warmest city in March in Illinois, the United States of America?

According to our recent database analysis, Metropolis is the warmest city. It experiences an average maximum daytime temperature of approximately 15°C (59°F) and rarely drops below 3°C (37°F) during the night.

What is the coldest city in March in Illinois, the United States of America?

For the month of March, Roscoe is the most temperate city in Illinois, the United States of America based on our records. Highs average 5°C (41°F) and nighttime temperatures dip to around -7°C (19°F).

How much sun does Illinois, the United States of America get in March?

Most cities enjoy a balanced amount of sunshine, with around 189 hours of sunlight anticipated in Chicago. This ensures the days are neither too dim nor excessively sunny.

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.

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