California · NWS SGX office

Tustin, CA weather

It is 64°F at FW0058 Santa Ana Fire as of Oct 27, 10:45 PM PDT. Tonight: Mostly Cloudy, low near 57°F. Forecast from the National Weather Service, issued Oct 27, 11:13 PM PDT.

Updated Oct 27, 11:20 PM PDT (snapshot)

Current conditions

Temperature

64°F

Mostly Cloudy

Wind

NE 2 mph, gusts 5 mph

Humidity 82% · dew point 58°F

Pressure · visibility

29.94 inHg

Visibility —

Observed at FW0058 Santa Ana Fire (F0058), Oct 27, 10:45 PM PDT. Station readings can lag or be missing.

Alerts for this area

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

Around the NWS SGX forecast area

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

  • Coastal Flood Warning

From the alert snapshot of Oct 28, 2026, 2:15 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 Tustin (local time)
TimeTempForecastPrecip. chanceWind
Tue 11 PM62°FMostly Cloudy0%E 5 mph
Wed 12 AM61°FMostly Cloudy0%E 5 mph
Wed 1 AM61°FMostly Cloudy0%E 5 mph
Wed 2 AM60°FMostly Cloudy0%E 5 mph
Wed 3 AM59°FMostly Cloudy0%E 5 mph
Wed 4 AM58°FMostly Cloudy0% 0 mph
Wed 5 AM58°FMostly Cloudy0% 0 mph
Wed 6 AM58°FPartly Sunny0% 0 mph
Wed 7 AM57°FPartly Sunny0% 0 mph
Wed 8 AM59°FPartly Sunny0%SE 5 mph
Wed 9 AM64°FPartly Sunny0% 0 mph
Wed 10 AM68°FPartly Sunny0% 0 mph
Wed 11 AM70°FMostly Sunny0% 0 mph
Wed 12 PM73°FMostly Sunny0%S 5 mph
Wed 1 PM75°FMostly Sunny0%S 5 mph
Wed 2 PM75°FMostly Sunny0%SW 5 mph
Wed 3 PM76°FMostly Sunny0%SW 5 mph
Wed 4 PM75°FMostly Sunny0%SW 5 mph
Wed 5 PM73°FPartly Sunny3%SW 5 mph
Wed 6 PM71°FMostly Cloudy3%SW 5 mph
Wed 7 PM68°FMostly Cloudy3%SW 5 mph
Wed 8 PM67°FMostly Cloudy3%SW 5 mph
Wed 9 PM66°FMostly Cloudy3% 0 mph
Wed 10 PM64°FMostly Cloudy3% 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 Tustin can differ.

7-day forecast

Tonight

Low 57°F

Mostly cloudy, with a low around 57. East wind 0 to 5 mph.

Wednesday

High 77°F·Low 58°F

Mostly sunny, with a high near 77. South wind 0 to 10 mph.

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

Thursday

High 75°F·Low 61°F

Partly sunny, with a high near 75. South wind 0 to 5 mph.

Thursday Night: Mostly cloudy, with a low around 61. South wind 0 to 5 mph.

Friday

High 73°F·Low 58°F

Partly sunny, with a high near 73.

Friday Night: A slight chance of rain showers between 11pm and 5am. Mostly cloudy, with a low around 58.

Saturday

High 73°F·Low 58°F

A chance of rain showers after 11am. Mostly cloudy, with a high near 73.

Saturday Night: Rain showers likely. Mostly cloudy, with a low around 58.

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 77°F·Low 58°F

Sunny, with a high near 77.

Monday Night: Mostly clear, with a low around 58.

Tuesday

High 77°F

Mostly sunny, with a high near 77.

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
Tustin 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 Tustin (33.7309, -117.8106), in Orange County. Population: 78,863 (2024 estimate), number 110 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/33.7309,-117.8106 (forecast issued Oct 27, 11:13 PM 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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