Lake Forest, CA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Lake Forest, CA in one place.
Mostly sunny, with a high near 70.
Local Weather Overview
This forecast page for Lake Forest, CA 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 20, 2026 2:18 AM PDT.
The active forecast window currently covers Apr 22 to Apr 26, 2026 for Lake Forest, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 22 to Apr 26, 2026
- Latest sync
- Apr 20, 2026 2:18 AM PDT
- Forecast office
- SGX
- Source
- NOAA / NWS
Daily Outlook
This Week in Lake Forest
Thursday looks like the warmest upcoming period in Lake Forest at 74 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 10 mph W.
The forecast from Apr 22 through Apr 26 stays mostly dry.
Forecast Details
- Last updated
- Apr 20, 2026 2:18 AM PDT
- Coverage
- 5 days
- Time zone
- America/Los_Angeles
- Forecast office
- SGX
- Radar station
- KSOX
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.
Mostly sunny, with a high near 74.
Partly cloudy, with a low around 53.
Mostly sunny, with a high near 73.
Partly cloudy, with a low around 54.
Partly sunny, with a high near 71.
Mostly cloudy, with a low around 53.
Partly sunny, with a high near 71.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Mostly Sunny
|
70°F |
5 to 10 mph
W
|
|
Wednesday Night
Apr 22
|
Mostly Clear
|
51°F |
5 to 10 mph
SW
|
|
Thursday
Apr 23
|
Mostly Sunny
|
74°F |
5 to 10 mph
S
|
|
Thursday Night
Apr 23
|
Partly Cloudy
|
53°F |
5 to 10 mph
S
|
|
Friday
Apr 24
|
Mostly Sunny
|
73°F |
5 to 10 mph
S
|
|
Friday Night
Apr 24
|
Partly Cloudy
|
54°F |
5 to 10 mph
SW
|
|
Saturday
Apr 25
|
Partly Sunny
|
71°F |
5 to 10 mph
SW
|
|
Saturday Night
Apr 25
|
Mostly Cloudy
|
53°F |
5 to 10 mph
W
|
|
Sunday
Apr 26
|
Partly Sunny
|
71°F |
5 to 10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lake Forest.
