Aurora, Illinois, United States climate

Average temperatures, precipitation and all-time records for Aurora, Illinois, United States, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is July, averaging a high of 84°F, and its coldest is January, with an average low of 17°F.

Aurora is a city in northeastern Illinois, United States, located along the Fox River. The population was 180,542 at the 2020 census. It is the second-most populous city in Illinois, after Chicago, and the 144th-most populous city in the US. via Wikipedia

How today compares

Latest recorded day: 2026-07-24. Each reading placed on Aurora, Illinois, United States's own ±7-day seasonal distribution.

High 77°F Low · 13th pct

Low 62°F Low · 24th pct

Feels-like 80°F Below Normal · 26th pct

Humidity 12.5 g/m³ Low · 18th pct

Wind 8 mph Below Normal · 34th pct

Gust 10 mph Near Record · 1st pct

Precip 0.00 in Dry

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Aurora average temperatures by month

Typical daily high and low, and average precipitation, for each month in Aurora, Illinois, United States, based on 1980–2026 records. The wettest month is May (0.20 in on an average day).

Month	Avg high	Avg low	Avg precip
January	31°F	17°F	0.10 in
February	36°F	21°F	0.10 in
March	49°F	31°F	0.10 in
April	60°F	41°F	0.10 in
May	71°F	51°F	0.20 in
June	81°F	62°F	0.10 in
July	84°F	67°F	0.10 in
August	81°F	64°F	0.10 in
September	76°F	57°F	0.10 in
October	63°F	45°F	0.10 in
November	49°F	34°F	0.10 in
December	36°F	23°F	0.10 in

Jan -1°–44°

Feb 3°–52°

Mar 19°–65°

Apr 30°–75°

May 40°–83°

Jun 53°–89°

Jul 59°–92°

Aug 56°–89°

Sep 46°–86°

Oct 33°–75°

Nov 23°–62°

Dec 5°–49°

Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -10°F to 115°F scale, so the whole year's rhythm reads at a glance.

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Record extremes

Hottest day on record: 101°F on 1988-06-25
Coldest day on record: -30°F on 2019-01-31

All Aurora weather records →

Percentiles compare each day to Aurora, Illinois, United States's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →