SeasonScore
Chicago, United States
Photo: Raymon Sutedjo-The · CC BY-SA 3.0

United States

Chicago in July

☀️ Summer

Warm, a little humid and some showers.

🎒 Pack: light, breathable clothes & sunscreen · compact umbrella or rain jacket

Best months: Sep (9.2), May (9.0), Oct (9.0)

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Why July scores 8.6What goes into the score

How it works
🌡️ 30° / 20°C🌧️ 102 mm💧 dew pt 19°🍃 PM2.5 15
  • Weather comfort8.3
    • ✓Warm (30°C highs / 20°C lows)
    • !Humid (dew point 18.6°C)
    • !Wet: ~102 mm rain, ~4 heavy-rain days
  • Air quality8.5
    • ✓Good (within WHO guideline) (PM2.5 ~15 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline7.5
    • ·Increased caution
Compare monthsPut July side by side with another month
JulSep
Score8.6 Excellent9.2 Excellent
Season☀️ Summer🍂 Autumn
High / low30° / 20°25° / 15°
Rain102 mm85 mm
Humiditydew pt 19°dew pt 15°
PM2.515 µg/m³11 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Chicago weather-station normals. Rainfall: Chicago Midway weather-station normals (national met service).

Holidays & crowdsJuly 2027

Long weekend

There's at least one long weekend. Domestic travel picks up and popular spots get busier over those days.

  • Independence Day 3–5 Jul · 3 days off in a row

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Nature calendarBlossoms, leaves & seasons in Chicago

  • Snowy daysTypical dates
    Snow likely Nov–Mar (most in Jan: ~9 days)

    Average number of days with snowfall at Chicago Midway. About 32 cm of snow falls in an average Jan.

    Source: Chicago Midway weather-station normals (national weather service, via Wikipedia climate table)

Explore ChicagoEvents, sights, food & souvenirs

Check event dates locally

A big Midwestern city on Lake Michigan, known for its architecture, art museums, lakefront, deep-dish pizza and blues music.

Events in July
LollapaloozaDate variesUsually late July or early August

A major multi-day music festival.

Why go: Hotels downtown fill up and prices rise.

Where: Grant Park

Coming up later

Chicago MarathonDate variesUsually early to mid-October

One of the World Marathon Majors.

Why go: Many streets close on race day.

Where: Citywide

St. Patrick's Day river dyeingDate variesUsually the Saturday before 17 March

The river is dyed bright green, followed by a parade.

Why go: Riverbank viewing spots fill early in the morning.

Where: Chicago River downtown

Chicago Blues FestivalDate variesUsually June

A large free blues music festival.

Why go: Free entry; bring a blanket.

Where: Millennium Park

Plan this tripTickets, data and transfers for Chicago

Airport transfer Kiwitaxi

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