California · NWS SGX office

Brea, CA weather

It is 62°F at FW0063 Fullerton CSU as of Oct 28, 2:08 AM PDT. Overnight: Mostly Cloudy, low near 57°F. Forecast from the National Weather Service, issued Oct 28, 12:03 AM PDT.

Updated Oct 28, 2:21 AM PDT (snapshot)

Current conditions

Temperature

62°F

Mostly Cloudy

Wind

Calm

Humidity 86% · dew point 58°F

Pressure · visibility

—

Visibility —

Observed at FW0063 Fullerton CSU (F0063), Oct 28, 2:08 AM PDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Brea forecast zone right now.

Around the NWS SGX forecast area

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

  • 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 Brea (local time)
TimeTempForecastPrecip. chanceWind
Wed 4 AM58°FMostly Cloudy0%E 5 mph
Wed 5 AM57°FPartly Cloudy0%NE 5 mph
Wed 6 AM57°FMostly Sunny0%NE 5 mph
Wed 7 AM57°FMostly Sunny0%E 5 mph
Wed 8 AM57°FMostly Sunny0%E 5 mph
Wed 9 AM60°FMostly Sunny0%E 5 mph
Wed 10 AM63°FMostly Sunny0%E 5 mph
Wed 11 AM67°FMostly Sunny0% 0 mph
Wed 12 PM70°FMostly Sunny0%S 5 mph
Wed 1 PM72°FMostly Sunny0%S 5 mph
Wed 2 PM74°FMostly Sunny0%S 5 mph
Wed 3 PM75°FMostly Sunny0%SW 5 mph
Wed 4 PM74°FMostly Sunny0%SW 5 mph
Wed 5 PM73°FMostly Sunny0%SW 10 mph
Wed 6 PM70°FPartly Cloudy0%SW 5 mph
Wed 7 PM66°FPartly Cloudy0%SW 5 mph
Wed 8 PM64°FMostly Cloudy0%SW 5 mph
Wed 9 PM63°FMostly Cloudy0%W 5 mph
Wed 10 PM62°FMostly Cloudy0% 0 mph
Wed 11 PM61°FMostly Cloudy0% 0 mph
Thu 12 AM60°FMostly Cloudy0% 0 mph
Thu 1 AM60°FMostly Cloudy0% 0 mph
Thu 2 AM59°FMostly Cloudy0% 0 mph
Thu 3 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 Brea can differ.

7-day forecast

Overnight

Low 57°F

Mostly cloudy, with a low around 57. East wind around 5 mph.

Wednesday

High 75°F·Low 57°F

Mostly sunny, with a high near 75. Southeast wind 0 to 10 mph.

Wednesday Night: Mostly cloudy, with a low around 57. West wind 0 to 5 mph.

Thursday

High 73°F·Low 60°F

Partly sunny, with a high near 73. Southeast wind 0 to 10 mph.

Thursday Night: Mostly cloudy, with a low around 60. Southwest wind 5 to 10 mph.

Friday

High 71°F·Low 57°F

Partly sunny, with a high near 71.

Friday Night: Mostly cloudy, with a low around 57.

Saturday

High 71°F·Low 57°F

A chance of rain showers after 11am. Mostly cloudy, with a high near 71.

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

Sunday

High 70°F·Low 55°F

A chance of rain showers before 4pm. Partly sunny, with a high near 70.

Sunday Night: Mostly clear, with a low around 55.

Monday

High 74°F·Low 56°F

Sunny, with a high near 74.

Monday Night: Mostly clear, with a low around 56.

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
Brea 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 Brea (33.9252, -117.8651), in Orange County. Population: 47,844 (2024 estimate), number 187 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/33.9252,-117.8651 (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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