Measurements:
°C
°F
CURRENT WEATHER
16:32
Chicago
82°F
NW 5 mph
Feels like: 84°F
Precip: 4%
World Resorts USA Chicago Weather

7 Day Weather Forecast

08.25
tue
DAY
76°F
W 6 mph
precip
14%
NIGHT
70°F
N 7 mph
precip
20%
08.26
wed
DAY
82°F
NE 11 mph
precip
15%
NIGHT
74°F
E 6 mph
precip
14%
08.27
thu
DAY
76°F
S 9 mph
precip
4%
NIGHT
74°F
NE 7 mph
precip
8%
08.28
fri
DAY
82°F
SW 4 mph
precip
2%
NIGHT
68°F
SW 7 mph
precip
20%
08.29
sat
DAY
82°F
N 9 mph
precip
3%
NIGHT
72°F
N 11 mph
precip
20%
08.30
sun
DAY
88°F
NE 17 mph
precip
10%
NIGHT
78°F
N 8 mph
precip
30%
08.31
mon
DAY
82°F
NE 10 mph
precip
36%
NIGHT
82°F
NE 10 mph
precip
17%

Chicago Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Chicago was 22.5°F. The maximum and minimum values were 20.3°F and 23.5°F respectively.

Chicago on the Weather Map

Best Time to Visit Chicago
The most sunny months:
September 17 days
June 16 days
July 16 days
The most warm months:
July 83.5 °F
August 83.2 °F
June 76.6 °F
Warmest sea temperature:
August 72.7 °F
July 70.5 °F
September 67.9 °F
The most cold months:
January 25.6 °F
February 29.0 °F
December 34.1 °F
The most rainy months:
June 6 days
May 6 days
July 5 days
The most windy months:
November 12 mph
January 12 mph
February 11 mph
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