California · NWS SGX office

San Jacinto, CA weather

It is 52°F at EW7004 San Jacinto as of Oct 28, 5:09 AM PDT. Overnight: Mostly Cloudy, low near 50°F. Forecast from the National Weather Service, issued Oct 28, 12:03 AM PDT.

Updated Oct 28, 5:22 AM PDT (snapshot)

Current conditions

Temperature

52°F

Mostly Cloudy

Wind

Calm

Humidity 64% · dew point 40°F

Pressure · visibility

29.96 inHg

Visibility —

Observed at EW7004 San Jacinto (E7004), Oct 28, 5:09 AM PDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the San Jacinto forecast zone right now.

Around the NWS SGX forecast area

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

  • Coastal Flood Warning

From the alert snapshot of Oct 28, 2026, 8:14 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 San Jacinto (local time)
TimeTempForecastPrecip. chanceWind
Wed 5 AM51°FMostly Cloudy0% 0 mph
Wed 6 AM50°FPartly Sunny0% 0 mph
Wed 7 AM50°FPartly Sunny0% 0 mph
Wed 8 AM51°FMostly Sunny0% 0 mph
Wed 9 AM55°FMostly Sunny0% 0 mph
Wed 10 AM59°FMostly Sunny0% 0 mph
Wed 11 AM65°FMostly Sunny0% 0 mph
Wed 12 PM69°FMostly Sunny0% 0 mph
Wed 1 PM72°FMostly Sunny0% 0 mph
Wed 2 PM73°FMostly Sunny0%SW 5 mph
Wed 3 PM74°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%S 10 mph
Wed 7 PM68°FPartly Cloudy0%S 5 mph
Wed 8 PM62°FPartly Cloudy0%SE 5 mph
Wed 9 PM61°FPartly Cloudy0%SE 5 mph
Wed 10 PM59°FPartly Cloudy0% 0 mph
Wed 11 PM59°FMostly Cloudy0% 0 mph
Thu 12 AM58°FMostly Cloudy0% 0 mph
Thu 1 AM57°FMostly Cloudy0% 0 mph
Thu 2 AM56°FMostly Cloudy0% 0 mph
Thu 3 AM54°FMostly Cloudy0% 0 mph
Thu 4 AM53°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 San Jacinto can differ.

7-day forecast

Overnight

Low 50°F

Mostly cloudy, with a low around 50. East wind around 0 mph.

Wednesday

High 75°F·Low 51°F

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

Wednesday Night: Mostly cloudy, with a low around 51. South wind 0 to 10 mph.

Thursday

High 74°F·Low 55°F

Mostly sunny, with a high near 74. Southwest wind 0 to 10 mph.

Thursday Night: Mostly cloudy, with a low around 55. Southwest wind 0 to 10 mph.

Friday

High 70°F·Low 52°F

Partly sunny, with a high near 70.

Friday Night: Mostly cloudy, with a low around 52.

Saturday

High 70°F·Low 53°F

A chance of rain showers after 11am. Mostly cloudy, with a high near 70.

Saturday Night: Rain showers likely. Cloudy, with a low around 53.

Sunday

High 68°F·Low 50°F

Rain showers likely. Mostly cloudy, with a high near 68.

Sunday Night: A chance of rain showers before 10pm. Partly cloudy, with a low around 50.

Monday

High 73°F·Low 52°F

Sunny, with a high near 73.

Monday Night: Mostly clear, with a low around 52.

Tuesday

High 74°F

Sunny, with a high near 74.

Nearby cities

Larger cities in the area

Other cities in Riverside County

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

About this forecast

Forecast office
San Jacinto is served by the National Weather Service SGX forecast office, forecast zone CAZ048, county zone CAC065.
Location used
The Census Bureau's internal point for San Jacinto (33.7989, -116.9959), in Riverside County. Population: 55,515 (2024 estimate), number 164 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/33.7989,-116.9959 (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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