California · NWS SGX office

Lake Forest, CA weather

It is 58°F at CW5283 Foothill Ranch as of Oct 28, 2:07 AM PDT. Overnight: Mostly Cloudy, low near 55°F. Forecast from the National Weather Service, issued Oct 28, 12:03 AM PDT.

Updated Oct 28, 2:17 AM PDT (snapshot)

Current conditions

Temperature

58°F

Mostly Cloudy

Wind

Calm

Humidity 82% · dew point 53°F

Pressure · visibility

—

Visibility —

Observed at CW5283 Foothill Ranch (C5283), Oct 28, 2:07 AM PDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Lake Forest forecast zone right now.

Around the NWS SGX forecast area

1 active alert covers zones served by the SGX office near Lake Forest:

  • Coastal Flood Warning

From the alert snapshot of Oct 28, 2026, 5:12 AM EDT. California has 8 active alerts: see them all.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Lake Forest (local time)
TimeTempForecastPrecip. chanceWind
Wed 2 AM58°FMostly Cloudy0%E 5 mph
Wed 3 AM57°FMostly Cloudy0%E 5 mph
Wed 4 AM56°FMostly Cloudy0%E 5 mph
Wed 5 AM56°FMostly Cloudy0%E 5 mph
Wed 6 AM56°FPartly Sunny0%E 5 mph
Wed 7 AM55°FPartly Sunny0%E 5 mph
Wed 8 AM56°FMostly Sunny0%E 5 mph
Wed 9 AM60°FMostly Sunny0% 0 mph
Wed 10 AM63°FMostly Sunny0% 0 mph
Wed 11 AM68°FMostly Sunny0% 0 mph
Wed 12 PM70°FMostly Sunny0%SW 5 mph
Wed 1 PM72°FMostly Sunny0%SW 5 mph
Wed 2 PM73°FMostly Sunny0%SW 5 mph
Wed 3 PM73°FMostly Sunny0%SW 5 mph
Wed 4 PM72°FMostly Sunny0%SW 5 mph
Wed 5 PM70°FMostly Sunny0%SW 5 mph
Wed 6 PM67°FPartly Cloudy0%SW 5 mph
Wed 7 PM64°FPartly Cloudy0%SW 5 mph
Wed 8 PM62°FMostly Cloudy0% 0 mph
Wed 9 PM61°FMostly Cloudy0% 0 mph
Wed 10 PM60°FMostly Cloudy0% 0 mph
Wed 11 PM59°FMostly Cloudy0% 0 mph
Thu 12 AM59°FMostly Cloudy0% 0 mph
Thu 1 AM58°FMostly Cloudy0% 0 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Lake Forest can differ.

7-day forecast

Overnight

Low 55°F

Mostly cloudy, with a low around 55. East wind around 5 mph.

Wednesday

High 74°F·Low 56°F

Mostly sunny, with a high near 74. South wind 0 to 5 mph.

Wednesday Night: Mostly cloudy, with a low around 56. Southwest wind 0 to 5 mph.

Thursday

High 72°F·Low 59°F

Partly sunny, with a high near 72. Southeast wind 0 to 5 mph.

Thursday Night: Mostly cloudy, with a low around 59. South wind around 5 mph.

Friday

High 69°F·Low 56°F

Partly sunny, with a high near 69.

Friday Night: Mostly cloudy, with a low around 56.

Saturday

High 69°F·Low 57°F

Rain showers likely after 11am. Mostly cloudy, with a high near 69.

Saturday Night: Rain showers likely. Cloudy, with a low around 57.

Sunday

High 69°F·Low 55°F

A chance of rain showers. Partly sunny, with a high near 69.

Sunday Night: A slight chance of rain showers before 10pm. Mostly clear, with a low around 55.

Monday

High 74°F·Low 57°F

Sunny, with a high near 74.

Monday Night: Mostly clear, with a low around 57.

Tuesday

High 75°F

Mostly sunny, with a high near 75.

Nearby cities

Larger cities in the area

Other cities in Orange County

See every city we cover in California, or check all active alerts.

About this forecast

Forecast office
Lake Forest is served by the National Weather Service SGX forecast office, forecast zone CAZ554, county zone CAC059.
Location used
The Census Bureau's internal point for Lake Forest (33.6549, -117.6758), in Orange County. Population: 87,159 (2024 estimate), number 95 of the 296 California cities on this site.
Radar
Nearest NWS radar: KSOX. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/33.6549,-117.6758 (forecast issued Oct 28, 12:03 AM PDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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