Lake Forest, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Lake Forest, IL in one place.
Sunny. High near 70, with temperatures falling to around 67 in the afternoon. West northwest 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: Oct 8, 2026 6:28 PM CDT.
The active forecast window currently covers Oct 8 to Oct 14, 2026 for Lake Forest, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 8 to Oct 14, 2026
- Latest sync
- Oct 8, 2026 6:28 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Lake Forest
Saturday looks like the warmest upcoming period in Lake Forest at 80 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 50 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 6:28 PM 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 clear, with a low around 51. West northwest wind 0 to 5 mph.
Scattered rain showers between 10am and 4pm, then scattered showers and thunderstorms. Mostly cloudy. High near 70, with temperatures falling to around 68 in the afternoon. Southeast wind 0 to 10 mph. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms 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%.
Mostly sunny, with a high near 80. South wind 10 to 15 mph, with gusts as high as 25 mph.
Mostly cloudy, with a low around 58.
Partly sunny, with a high near 70.
Mostly clear, with a low around 56.
Mostly sunny, with a high near 77.
A chance of rain showers after 7pm. Partly cloudy, with a low around 58.
A slight chance of rain showers before 7am. Partly sunny, with a high near 68.
Mostly cloudy, with a low around 50.
A chance of rain showers after 1pm. Partly sunny, with a high near 65.
A chance of rain showers. Mostly cloudy, with a low around 53.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 8
|
Sunny
|
70°F |
5 to 10 mph
WNW
|
|
Tonight
Oct 8
|
Mostly Clear
|
51°F |
0 to 5 mph
WNW
|
|
Friday
Oct 9
|
Scattered Rain Showers
|
70°F |
0 to 10 mph
SE
|
|
Friday Night
Oct 9
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
59°F |
10 mph
SSE
|
|
Saturday
Oct 10
|
Mostly Sunny
|
80°F |
10 to 15 mph
S
|
|
Saturday Night
Oct 10
|
Mostly Cloudy
|
58°F |
5 to 10 mph
S
|
|
Sunday
Oct 11
|
Partly Sunny
|
70°F |
5 mph
SE
|
|
Sunday Night
Oct 11
|
Mostly Clear
|
56°F |
0 to 5 mph
S
|
|
Columbus Day
Oct 12
|
Mostly Sunny
|
77°F |
0 to 10 mph
SW
|
|
Monday Night
Oct 12
|
Chance Rain Showers
|
58°F |
5 to 10 mph
WSW
|
|
Tuesday
Oct 13
|
Slight Chance Rain Showers then Partly Sunny
|
68°F |
10 mph
NNW
|
|
Tuesday Night
Oct 13
|
Mostly Cloudy
|
50°F |
5 to 10 mph
NE
|
|
Wednesday
Oct 14
|
Partly Sunny then Chance Rain Showers
|
65°F |
5 to 10 mph
E
|
|
Wednesday Night
Oct 14
|
Chance Rain Showers
|
53°F |
5 to 10 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lake Forest.
