Aurora in Summer

In summer (June, July and August), Aurora sees average daytime highs around 81°F and overnight lows near 63°F, with 11.6 in of rain over about 34 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.

Over the season highs climb from about 76°F in early June to 80°F by late August. The sky is clear or mostly clear about 34% of the time across summer, and the air most often feels muggy.

Summer is Aurora's best season of the year to visit on our travel score. For the whole year in context, see Aurora's year-round climate.

Avg daytime high
81°F
warmest season of the year
Avg overnight low
63°F
Rainfall
11.6 in
34 wet days
Avg wind
6 mph
Travel score
6.2
best season of the year
Months
Jun · Jul · Aug

Temperature in Aurora in Summer

Average highAverage lowShaded bands: 10–90% of days

Over the season highs climb from about 76°F in early June to 80°F by late August.

A typical summer day in Aurora reaches about 81°F and drops to 63°F overnight. The warmest of the three months is July, the coolest June.

40°60°80°JunJulAug

How summer really feels in Aurora

Once humidity and wind are folded in, summer brings about 0 days that feel above 90°F and 0 that feel at or below 32°F.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Aurora weather by month

How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan31° / 17°2.18.15.99.30.0
Feb35° / 20°2.074.610.30.0
Mar47° / 30°2.79.62.911.71.5
Apr59° / 40°4.411.80.913.14.3
May70° / 51°4.612.7014.36.0
Jun79° / 61°4.311.80156.3
Jul83° / 65°3.711.2014.75.9
Aug81° / 63°3.610.5013.76.5
Sep74° / 55°3.08.3012.37.1
Oct62° / 43°3.19.10.110.95.3
Nov47° / 33°2.58.21.29.61.7
Dec36° / 23°2.284.390.0

Cloud cover in Summer

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time across summer.

0%25%50%75%100%JunJulAug

Chance of precipitation in Summer

Any precipitation

Aurora gets around 11.6 in of rain over 34 wet days across summer. The line is the day-by-day chance of measurable precipitation.

0%10%20%30%40%50%JunJulAug

Humidity in Summer

DryComfortableHumidMuggyOppressiveMiserable

Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

0%25%50%75%100%JunJulAug

Wind in Summer

Winds average 6 mph across summer.

0246810JunJulAug

Sunrise & sunset in Summer

DaylightNight

Daylight runs from about 14 h 48 min in early June to 13 hours by late August. The lit band spans sunrise to sunset each day.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJunJulAug

Solar energy in Summer

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across summer, about 6.0 kWh/m².

0246JunJulAug
Planning a trip in summer

Is summer a good time to visit Aurora?

Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

6.2
Sightseeing
1st-best month of the year
6.5
Beach & pool
1st-best month of the year

summer is a reasonable time to visit Aurora for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Aurora in Summer

From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In summer, Aurora sees daytime highs around 81°F and nights near 63°F. Pack light clothes and sun protection. Worth having: rain gear. About 34 days see rain.

light clothessun protectionrain gear

Sea temperature near Aurora in Summer

The nearest coast averages about 67°F across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 37 mi away) is warmest in August at about 73°F and coldest in February near 36°F.

It's comfortable for a long swim from Jul 13 to Sep 15 — about 2.1 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan38Bracing
Feb36Bracing
Mar36Bracing
Apr39Bracing
May45Bracing
Jun57Bracing
Jul70Refreshing
Aug73Refreshing
Sep68Refreshing
Oct58Bracing
Nov49Bracing
Dec42Bracing

UV index in Aurora in Summer

LowModerateHighVery highExtreme

Clear-sky midday UV across summer averages around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Aurora peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 20UV 9Dec 19UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun9Very high
Jul8Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec2Low

Air quality in Aurora in Summer

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.

Air quality in Aurora is worst in July — around 17 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (October, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodJul 1817 µg/m³Oct 229 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb15Moderate
Mar16Moderate
Apr14Moderate
May15Moderate
Jun16Moderate
Jul17Moderate
Aug16Moderate
Sep13Moderate
Oct9Good
Nov10Good
Dec11Good
Location & terrain

Where is Aurora?

Aurora sits at 41.8°N, 88.3°W, 679 ft above sea level, in United States. The nearest listed city is Montgomery, 2.5 mi away.

Topography around Aurora

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Aurora.

Within 2 miles, the terrain around Aurora has only modest variations in elevation — a maximum elevation change of 157 ft around an average of 682 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 423 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 837 ft.

The land around Aurora is covered by artificial surfaces (45%) and trees (37%) within 2 miles, cropland (28%), trees (26%) and grassland (25%) within 10 miles, and cropland (49%) within 50 miles.

2 miles
157 ft
10 miles
423 ft
50 miles
837 ft
treesgrasslandcroplandartificial surfaceswater
Summer weather nearby: Montgomery 2.5 mi · North Aurora 3.1 mi · Oswego 5.6 mi · Batavia 6.2 mi · Geneva 8.7 mi · Naperville 9.3 mi · West Chicago 11 mi · Yorkville 11 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Aurora (41.7606°, -88.3201°, elevation 679 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.