Waukegan, IL Weather Forecast
Local 7-day forecast
Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Waukegan, IL in one place.
Rain showers before 1pm. Partly sunny. High near 49, with temperatures falling to around 47 in the afternoon. North northeast wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Waukegan, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 9, 2026 3:00 PM CDT.
The active forecast window currently covers Apr 10 to Apr 15, 2026 for Waukegan, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 3:00 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Waukegan
Monday looks like the warmest upcoming period in Waukegan at 77 degrees F.
Friday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Sunday at about 15 to 20 mph S.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 3:00 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 34. East northeast wind 0 to 10 mph.
Mostly sunny, with a high near 49. East southeast wind 5 to 10 mph, with gusts as high as 20 mph.
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 46. Chance of precipitation is 50%.
A chance of rain showers. Mostly cloudy, with a high near 73.
A chance of rain showers before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 60.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 77.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 60.
Showers and thunderstorms likely. Mostly cloudy, with a high near 73.
Showers and thunderstorms. Mostly cloudy, with a low around 45.
Showers and thunderstorms likely. Mostly cloudy, with a high near 62.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 43.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Rain Showers
|
49°F |
10 mph
NNE
|
|
Friday Night
Apr 10
|
Mostly Clear
|
34°F |
0 to 10 mph
ENE
|
|
Saturday
Apr 11
|
Mostly Sunny
|
49°F |
5 to 10 mph
ESE
|
|
Saturday Night
Apr 11
|
Chance Showers And Thunderstorms
|
46°F |
10 to 15 mph
SE
|
|
Sunday
Apr 12
|
Chance Rain Showers
|
73°F |
15 to 20 mph
S
|
|
Sunday Night
Apr 12
|
Showers And Thunderstorms Likely
|
60°F |
15 to 20 mph
SW
|
|
Monday
Apr 13
|
Showers And Thunderstorms Likely
|
77°F |
15 mph
SW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
60°F |
10 to 15 mph
SSW
|
|
Tuesday
Apr 14
|
Showers And Thunderstorms Likely
|
73°F |
15 mph
SW
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms
|
45°F |
10 to 15 mph
ESE
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
62°F |
15 mph
S
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
43°F |
10 to 15 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Waukegan.
