Lake Forest, IL Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Lake Forest, IL in one place.
Partly sunny, with a high near 76. North northeast wind 5 to 10 mph.
Local Weather Overview
This forecast page for Lake Forest, 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: Jul 8, 2026 8:00 PM CDT.
The active forecast window currently covers Jul 10 to Jul 15, 2026 for Lake Forest, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 10 to Jul 15, 2026
- Latest sync
- Jul 8, 2026 8:00 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Lake Forest
Tuesday looks like the warmest upcoming period in Lake Forest at 92 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 8:00 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 cloudy, with a low around 64. North northeast wind 5 to 10 mph.
Mostly sunny, with a high near 77.
A slight chance of rain showers between 7pm and 1am. Mostly clear, with a low around 66.
Sunny, with a high near 84.
Mostly clear, with a low around 68.
Sunny, with a high near 88.
Mostly clear, with a low around 71.
Sunny, with a high near 92.
Mostly clear, with a low around 72.
Sunny, with a high near 90.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 10
|
Partly Sunny
|
76°F |
5 to 10 mph
NNE
|
|
Friday Night
Jul 10
|
Mostly Cloudy
|
64°F |
5 to 10 mph
NNE
|
|
Saturday
Jul 11
|
Mostly Sunny
|
77°F |
5 to 10 mph
NE
|
|
Saturday Night
Jul 11
|
Slight Chance Rain Showers
|
66°F |
0 to 10 mph
NE
|
|
Sunday
Jul 12
|
Sunny
|
84°F |
0 to 5 mph
ENE
|
|
Sunday Night
Jul 12
|
Mostly Clear
|
68°F |
0 to 5 mph
SSW
|
|
Monday
Jul 13
|
Sunny
|
88°F |
0 to 5 mph
NNE
|
|
Monday Night
Jul 13
|
Mostly Clear
|
71°F |
0 to 5 mph
SSW
|
|
Tuesday
Jul 14
|
Sunny
|
92°F |
0 to 5 mph
W
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
72°F |
5 mph
W
|
|
Wednesday
Jul 15
|
Sunny
|
90°F |
5 to 10 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lake Forest.
