Live Weather & Forecast

Weather in Waukegan

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

Flag of United States
Partly cloudy
22°C
Feels like 22°C
71°F / Feels 71°F
Partly cloudy
Waukegan, Illinois
🌞 Daytime
Updated: 2026-04-13 12:00
💧
Humidity
79%
💨
Wind
22 km/h SW
🌬️
Wind Gust
37.2 km/h
🌡️
Pressure
1012 mb
👁️
Visibility
16 km
☀️
UV Index
3.9 (Moderate)
🌧️
Precipitation
0 mm
☁️
Cloud Cover
75%
💦
Dew Point
18.8°C
🌐
Wind Degree
235°

Air Quality Index

US EPA: Good UK DEFRA: Low (2)
CO
179.9 μg/m³
NO₂
17.4 μg/m³
O₃
78 μg/m³
SO₂
2.8 μg/m³
PM 2.5
13.4 μg/m³
PM 10
14 μg/m³

Weather Alerts 1

Met · Severe · Immediate
Flood Warning issued April 12 at 9:04PM CDT until April 14 at 7:00PM CDT by NWS Chicago IL

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

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: 2026-04-12T21:04:00-05:00  ·  Expires: 2026-04-13T15:15:00-05:00

Today's Hourly Forecast

24-hour breakdown for Waukegan, Illinois

12 AM
Light rain
17°
Light rain
💧 90% 💨 31.3 km/h 🌧️ 100%
1 AM
Light drizzle
16°
Light drizzle
💧 90% 💨 27 km/h 🌧️ 100%
2 AM
Patchy rain nearby
16°
Patchy rain nearby
💧 89% 💨 26.6 km/h 🌧️ 100%
3 AM
Partly Cloudy
16°
Partly Cloudy
💧 91% 💨 25.6 km/h
4 AM
Cloudy
17°
Cloudy
💧 92% 💨 27.4 km/h
5 AM
Partly Cloudy
17°
Partly Cloudy
💧 92% 💨 25.6 km/h
6 AM
Partly Cloudy
17°
Partly Cloudy
💧 91% 💨 20.9 km/h
7 AM
Overcast
17°
Overcast
💧 91% 💨 19.8 km/h
8 AM
Overcast
18°
Overcast
💧 91% 💨 19.8 km/h
9 AM
Cloudy
19°
Cloudy
💧 90% 💨 20.9 km/h
10 AM
Overcast
20°
Overcast
💧 89% 💨 21.6 km/h
11 AM
Partly Cloudy
21°
Partly Cloudy
💧 86% 💨 21.6 km/h
12 PM
Partly cloudy
22°
Partly cloudy
💧 79% 💨 22 km/h
1 PM
Partly Cloudy
22°
Partly Cloudy
💧 78% 💨 20.2 km/h
2 PM
Cloudy
23°
Cloudy
💧 76% 💨 19.4 km/h
3 PM
Sunny
23°
Sunny
💧 74% 💨 21.6 km/h
4 PM
Patchy light drizzle
24°
Patchy light drizzle
💧 69% 💨 20.5 km/h 🌧️ 100%
5 PM
Sunny
24°
Sunny
💧 60% 💨 23 km/h
6 PM
Patchy rain nearby
22°
Patchy rain nearby
💧 60% 💨 24.5 km/h 🌧️ 73%
7 PM
Sunny
18°
Sunny
💧 87% 💨 24.5 km/h
8 PM
Fog
17°
Fog
💧 100% 💨 23 km/h
9 PM
Partly Cloudy
17°
Partly Cloudy
💧 82% 💨 27.7 km/h
10 PM
Clear
18°
Clear
💧 82% 💨 28.4 km/h
11 PM
Patchy rain nearby
18°
Patchy rain nearby
💧 89% 💨 31.3 km/h 🌧️ 78%

3-Day Forecast

Daily overview for Waukegan, Illinois

Today
Patchy rain nearby
Patchy rain nearby
26° / 14°
🌧️ 78% chance of rain
💧 Avg. humidity: 84%
💨 Max wind: 31.3 km/h
🌧️ Total precip: 1.66 mm
☀️ UV Index: 1.1
🌅 Sunrise: 06:13 AM
🌇 Sunset: 07:31 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Moderate rain
Moderate rain
22° / 17°
🌧️ 84% chance of rain
💧 Avg. humidity: 91%
💨 Max wind: 32.4 km/h
🌧️ Total precip: 9.24 mm
☀️ UV Index: 1.1
🌅 Sunrise: 06:12 AM
🌇 Sunset: 07:33 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Heavy rain
Heavy rain
12° / 5°
🌧️ 88% chance of rain
💧 Avg. humidity: 98%
💨 Max wind: 24.1 km/h
🌧️ Total precip: 220.57 mm
☀️ UV Index: 0.5
🌅 Sunrise: 06:10 AM
🌇 Sunset: 07:34 PM
🌙 Waning Crescent
🌑 Moon: 8% lit

Best Time to Visit Waukegan

Plan your trip to Waukegan, 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 Waukegan 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Waukegan?
Current conditions in Waukegan: Partly cloudy, temperature 22°C, humidity 79%.
What is the best time to visit Waukegan?
The best time to visit Waukegan is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Waukegan?
Waukegan is located at approximately 42.4° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Waukegan?
The wettest period in Waukegan is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Waukegan?
For visits to Waukegan during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Waukegan in?
Waukegan is located in United States, in the state of Illinois.
What are the public holidays in Waukegan in 2026?
View the 2026 public holidays for Waukegan on our Holidays page.
What are the GPS coordinates used for the weather forecast in Waukegan?
The weather forecast for Waukegan uses coordinates 42.3602, -87.8318.