Milwaukee weather in September
September in Milwaukee averages 74°F by day and 56°F at night, with 3.2 inches of precipitation. It is the 4th-warmest and 6th-wettest month of the year here.
- Average high
- 74°F-7° vs August
- Average low
- 56°F0 nights below freezing
- Precipitation
- 3.2 in5 days with 0.1 in. or more
- Snow
- 0.0 in1 days at 90°F+
Is September a good time to visit Milwaukee?
Yes. September is one of the most comfortable months in Milwaukee by our rule (highs of 62 to 86°F, lows of 42°F or more and under 4.5 inches of precipitation). The most comfortable months overall are May to September.
Get outside in Milwaukee in September
September is made for being outside. Try Marcus Amphitheater. All things to do in Milwaukee.
On September 15 the sun rises at 6:31 am and sets at 7:01 pm, giving 12h 30m of daylight. Daylight all year.
What to pack for Milwaukee in September
- T-shirts and a light jacket or sweater
Based on 30-year averages, not a forecast. Check the forecast a few days before you go.
September nearby
| City | Distance | High | Low | Precip. |
|---|---|---|---|---|
| Milwaukee | 74°F | 56°F | 3.2 in | |
| Racine, WI | 23 mi | 73°F | 55°F | 3.2 in |
| Kenosha, WI | 32 mi | 72°F | 56°F | 3.5 in |
| Waukegan, IL | 47 mi | 73°F | 54°F | 3.6 in |
| Arlington Heights, IL | 66 mi | 76°F | 57°F | 3.2 in |
| Evanston, IL | 70 mi | 76°F | 57°F | 3.2 in |
| Schaumburg, IL | 70 mi | 76°F | 57°F | 3.2 in |
Frequently asked questions
What is the weather like in Milwaukee in September?
In September, Milwaukee averages a high of 74°F and a low of 56°F, with 3.2 inches of precipitation (NOAA 1991-2020 normals).
Is September a good time to visit Milwaukee?
Yes. September is one of Milwaukee's most comfortable months by our rule: highs between 62°F and 86°F, lows of 42°F or more and modest rain.
Does it snow in Milwaukee in September?
Rarely. The September snowfall normal is under half an inch.
Before and after: Milwaukee in August and Milwaukee in October. All twelve months: Milwaukee weather by month.
NOAA NCEI 1991-2020 climate normals, station Milwaukee Mitchell Airport, WI, 6.1 miles from the city center.