Waukegan, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Waukegan, IL in one place.
Mostly sunny. High near 70, with temperatures falling to around 67 in the afternoon. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
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: Oct 8, 2026 9:28 AM CDT.
The active forecast window currently covers Oct 8 to Oct 14, 2026 for Waukegan, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 8 to Oct 14, 2026
- Latest sync
- Oct 8, 2026 9:28 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Waukegan
Saturday looks like the warmest upcoming period in Waukegan at 79 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 45 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 mph S.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 8, 2026 9:28 AM CDT
- Coverage
- 7 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
Partly cloudy, with a low around 50. West northwest wind 0 to 5 mph.
A chance of rain showers between 2pm and 4pm, then a chance of showers and thunderstorms. Partly sunny. High near 70, with temperatures falling to around 68 in the afternoon. South southeast wind 0 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 7pm. Mostly clear, with a low around 59. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 25 mph.
Mostly cloudy, with a low around 59.
Partly sunny, with a high near 70.
Partly cloudy, with a low around 55.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76.
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
A chance of rain showers before 1pm. Partly sunny, with a high near 63.
Partly cloudy, with a low around 45.
Mostly sunny, with a high near 61.
A slight chance of rain showers after 7pm. Partly cloudy, with a low around 48.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Oct 8
|
Mostly Sunny
|
70°F |
5 to 10 mph
WNW
|
|
Tonight
Oct 8
|
Partly Cloudy
|
50°F |
0 to 5 mph
WNW
|
|
Friday
Oct 9
|
Partly Sunny then Chance Showers And Thunderstorms
|
70°F |
0 to 10 mph
SSE
|
|
Friday Night
Oct 9
|
Slight Chance Rain Showers then Mostly Clear
|
59°F |
10 mph
SSE
|
|
Saturday
Oct 10
|
Sunny
|
79°F |
10 to 15 mph
S
|
|
Saturday Night
Oct 10
|
Mostly Cloudy
|
59°F |
5 to 10 mph
S
|
|
Sunday
Oct 11
|
Partly Sunny
|
70°F |
5 mph
SE
|
|
Sunday Night
Oct 11
|
Partly Cloudy
|
55°F |
0 to 5 mph
S
|
|
Columbus Day
Oct 12
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
76°F |
0 to 10 mph
SW
|
|
Monday Night
Oct 12
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
54°F |
5 to 10 mph
WNW
|
|
Tuesday
Oct 13
|
Chance Rain Showers
|
63°F |
10 to 15 mph
NNW
|
|
Tuesday Night
Oct 13
|
Partly Cloudy
|
45°F |
5 to 10 mph
NNW
|
|
Wednesday
Oct 14
|
Mostly Sunny
|
61°F |
5 to 10 mph
ENE
|
|
Wednesday Night
Oct 14
|
Slight Chance Rain Showers
|
48°F |
5 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Waukegan.
