Measurements:
°C
°F
Chicago
52°F
SE 4 mph
Feels like: 48°F
Precip: 0%
World Resorts USA Chicago Weather

7 Day Weather Forecast

05.14
thu
DAY
56°F
W 6 mph
precip
0%
NIGHT
54°F
NW 9 mph
precip
0%
05.15
fri
DAY
54°F
N 14 mph
precip
85%
NIGHT
60°F
N 12 mph
precip
100%
05.16
sat
DAY
74°F
NE 7 mph
precip
0%
NIGHT
64°F
N 7 mph
precip
100%
05.17
sun
DAY
74°F
N 11 mph
precip
0%
NIGHT
70°F
N 16 mph
precip
0%
05.18
mon
DAY
76°F
NE 17 mph
precip
100%
NIGHT
70°F
N 17 mph
precip
0%
05.19
tue
DAY
64°F
E 17 mph
precip
71%
NIGHT
56°F
E 6 mph
precip
0%
05.20
wed
DAY
62°F
N 4 mph
precip
0%
NIGHT
60°F
NW 8 mph
precip
0%

Chicago Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Chicago was 11.2°F. The maximum and minimum values were 9.6°F and 13.3°F respectively.

Chicago on the Weather Map

Best Time to Visit Chicago
The most sunny months:
September 17 days
August 16 days
June 15 days
The most warm months:
July 83.8 °F
August 83.2 °F
June 77.0 °F
Warmest sea temperature:
August 72.5 °F
July 70.2 °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 7 days
May 6 days
July 5 days
The most windy months:
November 12 mph
January 12 mph
February 11 mph