← Festival Forecast

Lollapalooza Chicago 2026 Nice-Weather Probability

Probability of nice weather

0%

☁️

Pure sunshine vibes.

Based on ~15 years of climate data. Live forecast kicks in in 30 days.

Jul 30 – Aug 2

Thu

Jul 30 · Avg

98%
High
25°
Low
19°
Rain
1.1mm

Fri

Jul 31 · Avg

88%
High
26°
Low
19°
Rain
1.7mm

Sat

Aug 1 · Avg

91%
High
27°
Low
20°
Rain
1.5mm

Sun

Aug 2 · Avg

64%
High
28°
Low
20°
Rain
3.8mm

About Lollapalooza

Lollapalooza takes over Chicago's lakefront Grant Park every summer with four days of pop, hip-hop, rock and electronic music. Around 100,000 attendees a day make it the marquee American urban festival.

Typical weather

The turn of July into August in Chicago is full Midwestern summer: highs of 27–30°C, warm humid nights of 19–22°C, and a recurring threat of fast-moving thunderstorms off Lake Michigan.

How weather shapes Lollapalooza

Heat and humidity are exhausting in a downtown park with limited shade — water stations and the lakefront breeze are heavily used. Severe storms are the real disruptor: Lollapalooza has been briefly evacuated multiple times when lightning approached the city, and organisers monitor radar all weekend.