Measurements:
°C
°F
CURRENT WEATHER
09:27
Evanston
68°F
NE 9 mph
Feels like: 68°F
Precip: 84%
World Resorts USA Evanston Weather

7 Day Weather Forecast

09.15
tue
DAY
72°F
NE 8 mph
precip
73%
NIGHT
72°F
S 6 mph
precip
55%
09.16
wed
DAY
74°F
SW 8 mph
precip
15%
NIGHT
68°F
SW 3 mph
precip
17%
09.17
thu
DAY
78°F
S 4 mph
precip
18%
NIGHT
70°F
SW 7 mph
precip
25%
09.18
fri
DAY
70°F
W 11 mph
precip
31%
NIGHT
70°F
NW 9 mph
precip
17%
09.19
sat
DAY
74°F
N 5 mph
precip
32%
NIGHT
68°F
S 6 mph
precip
72%
09.20
sun
DAY
68°F
SW 6 mph
precip
41%
NIGHT
66°F
SW 7 mph
precip
48%
09.21
mon
DAY
72°F
N 5 mph
precip
46%
NIGHT
68°F
NE 6 mph
precip
26%

Evanston Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Evanston was 21.7°F. The maximum and minimum values were 19.0°F and 23.2°F respectively.

Evanston on the Weather Map

Best Time to Visit Evanston
The most sunny months:
September 17 days
August 17 days
June 16 days
The most warm months:
July 83.2 °F
August 82.8 °F
June 78.0 °F
Warmest sea temperature:
August 75.6 °F
July 73.8 °F
September 71.5 °F
The most cold months:
January 26.1 °F
February 30.3 °F
December 34.2 °F
The most rainy months:
May 3 days
October 2 days
April 2 days
The most windy months:
November 11 mph
March 10 mph
January 10 mph
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