Lake County, IL Weather Forecast
County weather hub
Slight Chance Rain Showers then Partly Sunny
Compare major city weather across Lake County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A slight chance of rain showers before 7am. Partly sunny, with a high near 75. North northeast wind 5 to 10 mph. Chance of precipitation is 20%.
County Weather Overview
This county weather page brings together forecast coverage for Lake County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 30 of 30 mapped cities in Lake County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 10 to Jul 14, 2026
- Latest sync
- Jul 8, 2026 1:07 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Lake County
Tuesday looks like the warmest upcoming period in Lake County at 93 degrees F.
Friday Night is the coolest period ahead with temperatures near 64 degrees F.
The strongest winds are forecast for Friday at about 5 to 10 mph NNE.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Jul 8, 2026 1:07 PM CDT
- Coverage
- 5 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 cloudy, with a low around 64.
Mostly sunny, with a high near 80.
Partly cloudy, with a low around 67.
Sunny, with a high near 86.
Mostly clear, with a low around 69.
Sunny, with a high near 90.
Mostly clear, with a low around 71.
Sunny, with a high near 93.
Partly cloudy, with a low around 72.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 10
|
Slight Chance Rain Showers then Partly Sunny
|
75°F |
5 to 10 mph
NNE
|
|
Friday Night
Jul 10
|
Mostly Cloudy
|
64°F |
5 to 10 mph
NNE
|
|
Saturday
Jul 11
|
Mostly Sunny
|
80°F |
5 to 10 mph
NE
|
|
Saturday Night
Jul 11
|
Partly Cloudy
|
67°F |
0 to 10 mph
NE
|
|
Sunday
Jul 12
|
Sunny
|
86°F |
0 to 5 mph
NE
|
|
Sunday Night
Jul 12
|
Mostly Clear
|
69°F |
0 to 5 mph
SW
|
|
Monday
Jul 13
|
Sunny
|
90°F |
0 to 5 mph
WNW
|
|
Monday Night
Jul 13
|
Mostly Clear
|
71°F |
0 to 5 mph
W
|
|
Tuesday
Jul 14
|
Sunny
|
93°F |
5 to 10 mph
W
|
|
Tuesday Night
Jul 14
|
Partly Cloudy
|
72°F |
5 to 10 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Lake County.
Coverage
Forecast coverage currently spans 30 of 30 mapped cities in Lake County.
Largest mapped city population in this region: 85,453.
