South Milwaukee, Wisconsin Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
South Milwaukee weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Drizzle46%0.02″78°63°—
- SundayJul 5Foggy14%—75°59°-3°
- MondayJul 6Overcast——66°61°-9°
- TuesdayJul 7Overcast——72°61°+6°
- WednesdayJul 8Overcast20%—79°62°+7°
- ThursdayJul 9Light Showers46%0.04″72°64°-7°
- FridayJul 10Partly Cloudy34%—67°64°-5°
AQI 37 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.0 µg/m³ (AQI 39) with a 0.90 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 34. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 34
- UV peak
- 5.9 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 13
PM × Wind × Precip
PM2.5 at 7.0 µg/m³ (AQI 39) with a 0.90 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.90
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:50 PM
- Moonset
- 9:54 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
South Milwaukee at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: May 3 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 53172
16-Day Forecast — South Milwaukee
- Sat78°63°46%
- Sun75°59°14%
- Mon66°61°0%
- Tue72°61°1%
- Wed79°62°20%
- Thu72°64°46%
- Fri67°64°34%
- Sat80°62°7%
- Sun67°61°9%
- Mon69°60°7%
- Tue72°64°8%
- Wed77°66°23%
- Thu81°67°14%
- Fri82°68°14%
- Sat77°68°23%
- Sun82°68°29%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — South Milwaukee
SPC includes South Milwaukee in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in South Milwaukee
- 53172