Waukegan weather
At 4:00 PM local time it was cloudy and 14°C (56°F). Mostly light, on-and-off rain; heavier around 6 AM (1.5 mm total). Best months for weather: May–Sep. Waukegan sits 205 m (673 ft) above sea level, which keeps it cooler than the coast. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Waukegan, Illinois, United States.
Current conditions
- Clouds
- 100%
- Chance of rain
- 7%
- Rain
- 0.0 mm/h
Hourly Forecast
Mostly light, on-and-off rain; heavier around 6 AM (1.5 mm total)
Daily Forecast
Best Time to Visit
Peak season May–SepOff season Nov–Mar
About Waukegan weather
Is it raining in Waukegan right now?
No. It’s cloudy and 14° right now. Mostly light, on-and-off rain; heavier around 6 AM (1.5 mm total).
What’s the weather like in Waukegan this week?
Over the next 7 days, expect highs of 12–20° and lows of 10–14°. Rain is likely on 5 of 7 days (Saturday, Sunday, Tuesday, Wednesday, Friday). The driest day looks like Saturday.
Has it been raining in Waukegan lately?
Barely. The past 7 days were mostly dry, with 0.0 mm of rain in total.
What should I pack for Waukegan?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.
Waukegan weather by month
When is the best time to visit Waukegan?
Based on weather alone, the best time to visit Waukegan is May–Sep, according to NASA's 2001–2025 climate averages. Nov–Mar tends to be the least pleasant. Average highs run from -2°C (28°F) in January to 28°C (82°F) in July.
What is the rainiest month in Waukegan?
June is the wettest month, with about 123 mm (4.8 in) of rain on average. January is the driest, with about 42 mm (1.7 in).
What is the hottest month in Waukegan?
July is the warmest, with average highs of 28°C (82°F) and lows of 18°C (64°F). January is the coolest, with highs of -2°C (28°F) and lows of -10°C (13°F).
Does Waukegan have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is June at about 123 mm (4.8 in).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months