Measurements:
°C
°F
CURRENT WEATHER
09:29
Milwaukee
66°F
NE 14 mph
Feels like: 66°F
Precip: 37%
World Resorts USA Milwaukee Weather

7 Day Weather Forecast

09.15
tue
DAY
72°F
NE 12 mph
precip
35%
NIGHT
64°F
SE 5 mph
precip
11%
09.16
wed
DAY
66°F
W 11 mph
precip
18%
NIGHT
66°F
NW 3 mph
precip
31%
09.17
thu
DAY
74°F
S 3 mph
precip
19%
NIGHT
66°F
SW 5 mph
precip
30%
09.18
fri
DAY
74°F
W 9 mph
precip
5%
NIGHT
64°F
NW 12 mph
precip
79%
09.19
sat
DAY
80°F
E 7 mph
precip
8%
NIGHT
66°F
SW 11 mph
precip
31%
09.20
sun
DAY
68°F
W 7 mph
precip
56%
NIGHT
64°F
W 11 mph
precip
71%
09.21
mon
DAY
64°F
SW 11 mph
precip
44%
NIGHT
64°F
W 8 mph
precip
39%

Milwaukee Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Milwaukee was 19.1°F. The maximum and minimum values were 16.5°F and 20.5°F respectively.

Milwaukee on the Weather Map

Best Time to Visit Milwaukee
The most sunny months:
August 15 days
June 14 days
July 14 days
The most warm months:
August 78.7 °F
July 78.6 °F
September 72.7 °F
Warmest sea temperature:
August 72.2 °F
July 69.3 °F
September 68.9 °F
The most cold months:
January 24.3 °F
February 27.6 °F
December 31.7 °F
The most rainy months:
April 3 days
May 2 days
October 2 days
The most windy months:
November 12 mph
March 12 mph
February 11 mph
more details