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. High near 52, with temperatures falling to around 44 in the afternoon. North northeast wind around 10 mph, with gusts as high as 20 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: Apr 10, 2026 3:11 PM CDT.
The active forecast window currently covers Apr 10 to Apr 16, 2026 for Lake Forest, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 10 to Apr 16, 2026
- Latest sync
- Apr 10, 2026 3:11 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 79 degrees F.
Tonight is the coolest period ahead with temperatures near 35 degrees F.
The strongest winds are forecast for Sunday at about 15 to 20 mph SSW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 10, 2026 3:11 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
Partly cloudy, with a low around 35. East northeast wind 5 to 10 mph.
Mostly sunny, with a high near 47. East southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Rain showers likely between 7pm and 10pm, then showers and thunderstorms likely. Cloudy, with a low around 45. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
A chance of rain showers before 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 75. South southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 77.
A slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 61.
Showers and thunderstorms likely before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 79.
Showers and thunderstorms. Mostly cloudy, with a low around 58.
A chance of rain showers before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 72.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
A chance of rain showers. Mostly sunny, with a high near 74.
A chance of rain showers. Partly cloudy, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Apr 10
|
Partly Sunny
|
52°F |
10 mph
NNE
|
|
Tonight
Apr 10
|
Partly Cloudy
|
35°F |
5 to 10 mph
ENE
|
|
Saturday
Apr 11
|
Mostly Sunny
|
47°F |
5 to 10 mph
ESE
|
|
Saturday Night
Apr 11
|
Showers And Thunderstorms Likely
|
45°F |
10 to 15 mph
SE
|
|
Sunday
Apr 12
|
Chance Rain Showers
|
75°F |
15 to 20 mph
SSW
|
|
Sunday Night
Apr 12
|
Chance Showers And Thunderstorms
|
59°F |
15 to 20 mph
SW
|
|
Monday
Apr 13
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
77°F |
15 mph
SW
|
|
Monday Night
Apr 13
|
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
61°F |
10 to 15 mph
SSW
|
|
Tuesday
Apr 14
|
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
|
79°F |
15 mph
SSW
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms
|
58°F |
15 mph
SSW
|
|
Wednesday
Apr 15
|
Chance Showers And Thunderstorms
|
72°F |
15 to 20 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
51°F |
10 to 15 mph
WSW
|
|
Thursday
Apr 16
|
Chance Rain Showers
|
74°F |
10 to 15 mph
SSW
|
|
Thursday Night
Apr 16
|
Chance Rain Showers
|
49°F |
10 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lake Forest.
