Live Weather & Forecast

Weather in South Milwaukee

Wisconsin, United States · Real-time conditions & 3-day outlook

Flag of United States
Light rain
15°C
Feels like 15°C
59°F / Feels 59°F
Light rain
South Milwaukee, Wisconsin
🌞 Daytime
Updated: 2026-04-12 09:00
💧
Humidity
78%
💨
Wind
27 km/h S
🌬️
Wind Gust
56.7 km/h
🌡️
Pressure
1014 mb
👁️
Visibility
11 km
☀️
UV Index
0.5 (Low)
🌧️
Precipitation
0 mm
☁️
Cloud Cover
100%
💦
Dew Point
12.6°C
🌐
Wind Degree
190°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
179.9 μg/m³
NO₂
5.6 μg/m³
O₃
100 μg/m³
SO₂
2.1 μg/m³
PM 2.5
8.5 μg/m³
PM 10
8.8 μg/m³

Weather Alerts 5

Met · Severe · Immediate
Flood Warning issued April 11 at 10:46AM CDT by NWS Chicago IL

...The Flood Warning continues for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting Kane, Lake IL and McHenry Counties. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater...Minor flooding is occurring. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road...

A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation...

Effective: 2026-04-11T10:46:00-05:00  ·  Expires: 2026-04-12T05:00:00-05:00
Met · Severe · Immediate
Flood Warning issued April 11 at 10:43AM CDT until April 12 at 7:00AM CDT by NWS Chicago IL

...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. For the Des Plaines River...including Gurnee...Minor flooding is occurring. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Des Plaines River from IL/WI state line downstream to US...

A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation...

Effective: 2026-04-11T10:43:00-05:00  ·  Expires: 2026-04-12T04:45:00-05:00
Met · Severe · Immediate
Flood Warning issued April 11 at 10:43AM CDT until April 12 at 1:00PM CDT by NWS Chicago IL

...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. For the Des Plaines River...including Gurnee...Minor flooding is occurring. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Des Plaines River from US-41 in Gurnee downstream to Tow...

A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation...

Effective: 2026-04-11T10:43:00-05:00  ·  Expires: 2026-04-12T04:45:00-05:00
Met · Severe · Immediate
Flood Warning issued April 11 at 9:24PM CDT until April 14 at 7:00PM CDT by NWS Chicago IL

...The Flood Warning continues for the following rivers in Illinois...Indiana... Fox River at Algonquin Lock & Dam tailwater affecting Lake IL, McHenry and Kane Counties. Kankakee River at Dunns Bridge affecting Jasper and Porter Counties. Kankakee River at Shelby affecting Newton and Lake IN Counties. ...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River...

A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation...

Effective: 2026-04-11T21:24:00-05:00  ·  Expires: 2026-04-12T15:30:00-05:00
Met · Severe · Immediate
Flood Warning issued April 11 at 9:24PM CDT until April 14 at 7:00PM CDT by NWS Chicago IL

...The Flood Warning continues for the following rivers in Illinois...Indiana... Fox River at Algonquin Lock & Dam tailwater affecting Lake IL, McHenry and Kane Counties. Kankakee River at Dunns Bridge affecting Jasper and Porter Counties. Kankakee River at Shelby affecting Newton and Lake IN Counties. ...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River...

A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation...

Effective: 2026-04-11T21:24:00-05:00  ·  Expires: 2026-04-12T15:30:00-05:00

Today's Hourly Forecast

24-hour breakdown for South Milwaukee, Wisconsin

12 AM
Patchy rain nearby
7°
Patchy rain nearby
💧 78% 💨 16.9 km/h 🌧️ 100%
1 AM
Patchy rain nearby
7°
Patchy rain nearby
💧 80% 💨 19.1 km/h 🌧️ 100%
2 AM
Patchy rain nearby
8°
Patchy rain nearby
💧 78% 💨 21.2 km/h 🌧️ 68%
3 AM
Clear
8°
Clear
💧 79% 💨 19.8 km/h
4 AM
Clear
8°
Clear
💧 80% 💨 20.9 km/h
5 AM
Clear
9°
Clear
💧 81% 💨 20.2 km/h
6 AM
Clear
10°
Clear
💧 82% 💨 19.1 km/h
7 AM
Sunny
11°
Sunny
💧 83% 💨 16.9 km/h
8 AM
Patchy rain nearby
13°
Patchy rain nearby
💧 85% 💨 24.8 km/h 🌧️ 100%
9 AM
Light rain
15°
Light rain
💧 78% 💨 27 km/h
10 AM
Patchy rain nearby
18°
Patchy rain nearby
💧 82% 💨 28.8 km/h 🌧️ 100%
11 AM
Patchy rain nearby
21°
Patchy rain nearby
💧 81% 💨 29.9 km/h 🌧️ 75%
12 PM
Patchy rain nearby
23°
Patchy rain nearby
💧 79% 💨 29.2 km/h 🌧️ 100%
1 PM
Sunny
24°
Sunny
💧 75% 💨 27.4 km/h
2 PM
Sunny
25°
Sunny
💧 72% 💨 28.4 km/h
3 PM
Sunny
25°
Sunny
💧 68% 💨 32 km/h
4 PM
Sunny
22°
Sunny
💧 68% 💨 33.8 km/h
5 PM
Overcast
20°
Overcast
💧 79% 💨 35.3 km/h
6 PM
Overcast
18°
Overcast
💧 85% 💨 36.4 km/h
7 PM
Overcast
17°
Overcast
💧 97% 💨 35.6 km/h
8 PM
Overcast
16°
Overcast
💧 99% 💨 27.4 km/h
9 PM
Overcast
15°
Overcast
💧 99% 💨 25.6 km/h
10 PM
Heavy rain
16°
Heavy rain
💧 98% 💨 26.3 km/h 🌧️ 100%
11 PM
Overcast
16°
Overcast
💧 96% 💨 22.7 km/h

3-Day Forecast

Daily overview for South Milwaukee, Wisconsin

Today
Moderate rain
Moderate rain
26° / 6°
🌧️ 81% chance of rain
💧 Avg. humidity: 83%
💨 Max wind: 36.4 km/h
🌧️ Total precip: 10.19 mm
☀️ UV Index: 0.7
🌅 Sunrise: 06:14 AM
🌇 Sunset: 07:31 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Moderate rain
Moderate rain
21° / 14°
🌧️ 83% chance of rain
💧 Avg. humidity: 91%
💨 Max wind: 28.1 km/h
🌧️ Total precip: 5.91 mm
☀️ UV Index: 1.4
🌅 Sunrise: 06:13 AM
🌇 Sunset: 07:32 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Heavy rain
Heavy rain
22° / 11°
🌧️ 89% chance of rain
💧 Avg. humidity: 92%
💨 Max wind: 31 km/h
🌧️ Total precip: 34.23 mm
☀️ UV Index: 1.1
🌅 Sunrise: 06:11 AM
🌇 Sunset: 07:33 PM
🌙 Waning Crescent
🌑 Moon: 15% lit

Best Time to Visit South Milwaukee

Plan your trip to South Milwaukee, United States around the most favorable weather conditions.

Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
← Back to South Milwaukee 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in South Milwaukee?
Current conditions in South Milwaukee: Light rain, temperature 15°C, humidity 78%.
What is the best time to visit South Milwaukee?
The best time to visit South Milwaukee is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in South Milwaukee?
South Milwaukee is located at approximately 42.9° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in South Milwaukee?
The wettest period in South Milwaukee is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to South Milwaukee?
For visits to South Milwaukee during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is South Milwaukee in?
South Milwaukee is located in United States, in the state of Wisconsin.
What are the public holidays in South Milwaukee in 2026?
View the 2026 public holidays for South Milwaukee on our Holidays page.
What are the GPS coordinates used for the weather forecast in South Milwaukee?
The weather forecast for South Milwaukee uses coordinates 42.9106, -87.8606.