Measurements:
°C
°F
Evanston
62°F
W 7 mph
Feels like: 62°F
Precip: 2%
World Resorts USA Evanston Weather

Evanston Sea Water Temperature

Current Sea Water Temperature:
+66.0°F
Maximum Sea Water Temperature in October: 76.4°F
Minimum Sea Water Temperature in October: 45.4°F
Average water temperature in October: 61.5°F

Sea Water Temperature for the Last 10 Days:

October 05 66.0°F September 30 65.6°F
October 04 66.0°F September 29 66.0°F
October 03 65.8°F September 28 65.2°F
October 02 65.4°F September 27 65.2°F
October 01 65.6°F September 26 65.4°F

When is the Warmest Sea for Evanston?

According to our data for the last three years for Evanston the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Evanston was 74.7°F. The maximum and minimum values were 70.2°F and 77.0°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Evanston was 74.5°F. The maximum and minimum values were 67.4°F and 80.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Evanston was 69.0°F. The maximum and minimum values were 62.6°F and 76.4°F respectively.

Best Time to Visit Evanston
The most sunny months:
August 17 days
June 16 days
September 15 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 71.2 °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

Evanston on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +62
Hawaii +82
Houston +86
Las Vegas +92
Los Angeles +100
Maui +74
Miami +88
Myrtle Beach +70
New York +62
San Diego +84
San Francisco +66
Santa Monica +94
Sarasota +84
Washington +64
24 Hours Weather Forecast
Evanston
Local time: 18:50
05 oct, monday
2100 60°F
NW
6 mph
06 oct, tuesday
0000 58°F
NW
6 mph
0300 56°F
N
5 mph
0600 56°F
N
6 mph
0900 60°F
N
8 mph
1200 70°F
N
11 mph
1500 74°F
NE
12 mph
1800 72°F
NE
11 mph