California · NWS SGX office

Fountain Valley, CA weather

It is 61°F at WD6AWP Huntington Beach as of Oct 28, 2:00 AM PDT. Overnight: Mostly Cloudy, low near 58°F, 1% chance of precipitation. Forecast from the National Weather Service, issued Oct 28, 12:03 AM PDT.

Updated Oct 28, 2:20 AM PDT (snapshot)

Current conditions

Temperature

61°F

Mostly Cloudy

Wind

Calm

Humidity 92% · dew point 59°F

Pressure · visibility

29.95 inHg

Visibility —

Observed at WD6AWP Huntington Beach (AR684), Oct 28, 2:00 AM PDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Fountain Valley forecast zone right now.

Around the NWS SGX forecast area

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

  • 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 Fountain Valley (local time)
TimeTempForecastPrecip. chanceWind
Wed 4 AM59°FMostly Cloudy1%E 5 mph
Wed 5 AM58°FMostly Cloudy1%E 5 mph
Wed 6 AM58°FPartly Sunny1%E 5 mph
Wed 7 AM58°FPartly Sunny1%E 5 mph
Wed 8 AM60°FPartly Sunny1%E 5 mph
Wed 9 AM64°FPartly Sunny1%E 5 mph
Wed 10 AM68°FPartly Sunny1% 0 mph
Wed 11 AM72°FMostly Sunny0% 0 mph
Wed 12 PM74°FMostly Sunny0%S 5 mph
Wed 1 PM74°FMostly Sunny0%S 5 mph
Wed 2 PM75°FMostly Sunny0%SW 5 mph
Wed 3 PM75°FMostly Sunny0%SW 10 mph
Wed 4 PM74°FMostly Sunny0%SW 10 mph
Wed 5 PM73°FMostly Sunny0%SW 5 mph
Wed 6 PM70°FPartly Cloudy0%SW 5 mph
Wed 7 PM68°FPartly Cloudy0%SW 5 mph
Wed 8 PM66°FMostly Cloudy0% 0 mph
Wed 9 PM65°FMostly Cloudy0% 0 mph
Wed 10 PM64°FMostly Cloudy0% 0 mph
Wed 11 PM63°FMostly Cloudy2% 0 mph
Thu 12 AM62°FMostly Cloudy2% 0 mph
Thu 1 AM62°FMostly Cloudy2% 0 mph
Thu 2 AM61°FMostly Cloudy2% 0 mph
Thu 3 AM59°FMostly Cloudy2% 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 Fountain Valley can differ.

7-day forecast

Overnight

Low 58°F

Mostly cloudy, with a low around 58. East wind around 5 mph.

Wednesday

High 75°F·Low 58°F

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

Wednesday Night: Mostly cloudy, with a low around 58. Southeast wind 0 to 5 mph.

Thursday

High 74°F·Low 61°F

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

Thursday Night: Mostly cloudy, with a low around 61. South wind around 5 mph.

Friday

High 72°F·Low 58°F

Partly sunny, with a high near 72.

Friday Night: A slight chance of rain showers after 11pm. Mostly cloudy, with a low around 58.

Saturday

High 71°F·Low 57°F

Rain showers likely. Mostly cloudy, with a high near 71.

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

Sunday

High 72°F·Low 57°F

A chance of rain showers before 4pm. Partly sunny, with a high near 72.

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

Monday

High 76°F·Low 59°F

Sunny, with a high near 76.

Monday Night: Mostly clear, with a low around 59.

Tuesday

High 76°F

Mostly sunny, with a high near 76.

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
Fountain Valley 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 Fountain Valley (33.7106, -117.9511), in Orange County. Population: 56,036 (2024 estimate), number 162 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/33.7106,-117.9511 (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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