Lake Forest, IL Weather Forecast
Local 7-day forecast
Partly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Lake Forest, IL in one place.
Partly cloudy, with a low around 61. South 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: May 26, 2026 12:05 AM CDT.
The active forecast window currently covers May 25 to Jun 1, 2026 for Lake Forest, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 25 to Jun 1, 2026
- Latest sync
- May 26, 2026 12:05 AM 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 84 degrees F.
Thursday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Wednesday Night at about 10 to 15 mph NNE.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- May 26, 2026 12:05 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
Mostly sunny, with a high near 84. South wind 5 to 10 mph.
Partly cloudy, with a low around 62. South southwest wind around 5 mph.
Mostly sunny, with a high near 71. North northeast wind 5 to 10 mph.
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 54. North northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunny, with a high near 67.
Mostly clear, with a low around 52.
Sunny, with a high near 69.
Mostly clear, with a low around 56.
Mostly sunny, with a high near 66.
Mostly clear, with a low around 54.
Sunny, with a high near 66.
Mostly clear, with a low around 55.
Sunny, with a high near 71.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
May 25
|
Partly Cloudy
|
61°F |
5 to 10 mph
S
|
|
Tuesday
May 26
|
Mostly Sunny
|
84°F |
5 to 10 mph
S
|
|
Tuesday Night
May 26
|
Partly Cloudy
|
62°F |
5 mph
SSW
|
|
Wednesday
May 27
|
Mostly Sunny
|
71°F |
5 to 10 mph
NNE
|
|
Wednesday Night
May 27
|
Slight Chance Showers And Thunderstorms
|
54°F |
10 to 15 mph
NNE
|
|
Thursday
May 28
|
Sunny
|
67°F |
10 to 15 mph
NNE
|
|
Thursday Night
May 28
|
Mostly Clear
|
52°F |
0 to 10 mph
NNE
|
|
Friday
May 29
|
Sunny
|
69°F |
0 to 10 mph
NE
|
|
Friday Night
May 29
|
Mostly Clear
|
56°F |
5 mph
NE
|
|
Saturday
May 30
|
Mostly Sunny
|
66°F |
5 to 15 mph
NE
|
|
Saturday Night
May 30
|
Mostly Clear
|
54°F |
5 to 15 mph
NE
|
|
Sunday
May 31
|
Sunny
|
66°F |
5 to 15 mph
NE
|
|
Sunday Night
May 31
|
Mostly Clear
|
55°F |
5 to 10 mph
NNE
|
|
Monday
Jun 1
|
Sunny
|
71°F |
5 to 10 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lake Forest.
