17.09
thu
thu
Day

66°F
SW 3 mph
Precip.
23%
23%
Night

64°F
SW 4 mph
Precip.
14%
14%
18.09
fri
fri
Day

64°F
W 15 mph
Precip.
13%
13%
Night

63°F
W 16 mph
Precip.
10%
10%
19.09
sat
sat
Day

72°F
NE 8 mph
Precip.
30%
30%
Night

63°F
S 11 mph
Precip.
43%
43%
20.09
sun
sun
Day

61°F
SW 14 mph
Precip.
42%
42%
Night

61°F
W 12 mph
Precip.
19%
19%
21.09
mon
mon
Day

54°F
W 14 mph
Precip.
78%
78%
Night

59°F
E 9 mph
Precip.
33%
33%
22.09
tue
tue
Day

59°F
E 11 mph
Precip.
27%
27%
Night

57°F
E 5 mph
Precip.
25%
25%
23.09
wed
wed
Day

64°F
N 13 mph
Precip.
22%
22%
Night

55°F
E 15 mph
Precip.
6%
6%
24.09
thu
thu
Day

55°F
E 17 mph
Precip.
8%
8%
Night

50°F
SE 9 mph
Precip.
6%
6%
25.09
fri
fri
Day

57°F
SE 14 mph
Precip.
2%
2%
Night

50°F
SE 6 mph
Precip.
6%
6%
26.09
sat
sat
Day

63°F
E 6 mph
Precip.
1%
1%
Night

54°F
NE 7 mph
Precip.
7%
7%
27.09
sun
sun
Day

66°F
NE 15 mph
Precip.
6%
6%
Night

63°F
NE 12 mph
Precip.
11%
11%
28.09
mon
mon
Day

70°F
NE 13 mph
Precip.
6%
6%
Night

64°F
E 6 mph
Precip.
8%
8%
29.09
tue
tue
Day

70°F
SW 4 mph
Precip.
14%
14%
Night

55°F
SW 12 mph
Precip.
19%
19%
30.09
wed
wed
Day

59°F
SW 12 mph
Precip.
8%
8%
Night

55°F
SW 12 mph
Precip.
15%
15%
sea water
temperature
temperature
| Milwaukee |
monthly
weather
weather
| Milwaukee |
current
weather
weather
| Milwaukee |
7 days
forecast
forecast
| Milwaukee |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 65.5°F. The highest and lowest sea temperatures during the month were 68.9°F and 57.6°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 60.4°F. The highest and lowest sea temperatures during the month were 67.6°F and 53.1°F.
Air temperature in Milwaukee, °F
Precipitation total in Milwaukee, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Milwaukee
Milwaukee on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Milwaukee
Local time: 02:49
September 17, thursday
0300

63°F
SE
2 mph
2 mph
0600

63°F
S
4 mph
4 mph
0900

63°F
SW
2 mph
2 mph
1200

66°F
SW
3 mph
3 mph
1500

66°F
W
2 mph
2 mph
1800

66°F
SW
2 mph
2 mph
2100

66°F
SW
4 mph
4 mph
September 18, friday
0000

64°F
SW
4 mph
4 mph



























