11.09
fri
fri
Day
77°F
NW 7 mph
Precip.
1%
1%
Night
70°F
N 6 mph
Precip.
7%
7%
12.09
sat
sat
Day
82°F
NE 9 mph
Precip.
2%
2%
Night
73°F
SE 7 mph
Precip.
4%
4%
13.09
sun
sun
Day
73°F
SW 11 mph
Precip.
12%
12%
Night
64°F
SW 10 mph
Precip.
15%
15%
14.09
mon
mon
Day
68°F
NW 9 mph
Precip.
75%
75%
Night
77°F
N 12 mph
Precip.
8%
8%
15.09
tue
tue
Day
82°F
E 7 mph
Precip.
14%
14%
Night
70°F
S 7 mph
Precip.
17%
17%
16.09
wed
wed
Day
64°F
SW 8 mph
Precip.
39%
39%
Night
64°F
W 7 mph
Precip.
32%
32%
17.09
thu
thu
Day
68°F
SW 9 mph
Precip.
1%
1%
Night
64°F
W 5 mph
Precip.
7%
7%
sea water
temperature
temperature
| Evanston |
monthly
weather
weather
| Evanston |
current
weather
weather
| Evanston |
14 days
forecast
forecast
| Evanston |
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 69.6°F. The highest and lowest sea temperatures during the month were 72.0°F and 66.4°F.
Air temperature in Evanston, °F
Precipitation total in Evanston, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Evanston
Evanston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Evanston
Local time: 00:02
September 11, friday
0300
64°F
W
4 mph
4 mph
0600
66°F
NW
2 mph
2 mph
0900
70°F
NW
4 mph
4 mph
1200
77°F
NW
7 mph
7 mph
1500
79°F
W
9 mph
9 mph
1800
73°F
W
7 mph
7 mph
2100
72°F
NW
5 mph
5 mph
September 12, saturday
0000
70°F
N
6 mph
6 mph
