🇺🇸 Weather in Waukegan
Map Overlays:
Hourly Forecast for Waukegan
00:00
20°
40%
01:00
20°
41%
02:00
20°
40%
03:00
20°
35%
04:00
20°
78%
05:00
20°
40%
06:00
22°
39%
07:00
24°
21%
08:00
26°
11%
09:00
28°
7%
10:00
30°
5%
11:00
30°
7%
12:00
29°
8%
13:00
30°
6%
14:00
30°
6%
15:00
29°
6%
16:00
28°
16%
17:00
26°
7%
18:00
25°
6%
19:00
25°
6%
20:00
25°
8%
21:00
25°
10%
22:00
24°
9%
23:00
24°
9%
14-Day Forecast for Waukegan
2026-06-09
Moderate rain
32° /
20°
2026-06-10
Patchy rain nearby
33° /
19°
2026-06-11
Heavy rain
28° /
17°
2026-06-12
Sunny
24° /
14°
2026-06-13
Patchy rain nearby
24° /
16°
2026-06-14
Sunny
20° /
12°
2026-06-15
Patchy rain nearby
16° /
13°
Additional Forecasts for Waukegan
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 189.0 μg/m³
O₃ (Ozone) 58.0 μg/m³
NO₂ (Nitrogen Dioxide) 26.4 μg/m³
SO₂ (Sulphur Dioxide) 1.5 μg/m³
PM2.5 (Fine particles) 14.0 μg/m³
PM10 (Coarse particles) 14.3 μg/m³
Historical Weather
Weather Forecasts for Other Cities in United States
Weather in Waukegan — FAQ
Answers refreshed each request based on current conditions in Waukegan.
What is the weather like right now in Waukegan?
Right now in Waukegan, United States the temperature is 18.3°C (feels like 18.3°C), with mist. Relative humidity is 100% and wind is 7.9 km/h.
What is today's high and low temperature in Waukegan?
Today's forecast high in Waukegan is 32.1°C and the overnight low is 20.2°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Waukegan today?
The chance of precipitation in Waukegan today is 83%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Waukegan differ from nearby cities?
Even short distances can change temperatures noticeably. Waukegan's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.