California · NWS SGX office

San Bernardino, CA weather

It is 57°F at FW0494 San Bernardino CSU SB CA US as of Oct 28, 2:00 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, 2:14 AM PDT (snapshot)

Current conditions

Temperature

57°F

Mostly Cloudy

Wind

Calm

Humidity 81% · dew point 51°F

Pressure · visibility

30.01 inHg

Visibility —

Observed at FW0494 San Bernardino CSU SB CA US (F0494), Oct 28, 2:00 AM PDT. Station readings can lag or be missing.

Alerts for this area

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

Around the NWS SGX forecast area

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

  • 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 San Bernardino (local time)
TimeTempForecastPrecip. chanceWind
Wed 4 AM56°FMostly Cloudy0% 0 mph
Wed 5 AM56°FPartly Cloudy0% 0 mph
Wed 6 AM55°FMostly Sunny0% 0 mph
Wed 7 AM55°FMostly Sunny0% 0 mph
Wed 8 AM56°FMostly Sunny0% 0 mph
Wed 9 AM59°FMostly Sunny0% 0 mph
Wed 10 AM62°FMostly Sunny0% 0 mph
Wed 11 AM68°FSunny0% 0 mph
Wed 12 PM70°FSunny0% 0 mph
Wed 1 PM73°FSunny0% 0 mph
Wed 2 PM74°FSunny0% 0 mph
Wed 3 PM74°FSunny0%S 5 mph
Wed 4 PM75°FSunny0%SW 5 mph
Wed 5 PM74°FSunny0%SW 5 mph
Wed 6 PM71°FMostly Clear0%W 5 mph
Wed 7 PM70°FMostly Clear0% 0 mph
Wed 8 PM66°FPartly Cloudy0%S 5 mph
Wed 9 PM64°FPartly Cloudy0% 0 mph
Wed 10 PM62°FPartly Cloudy0% 0 mph
Wed 11 PM61°FMostly Cloudy0% 0 mph
Thu 12 AM60°FMostly Cloudy0% 0 mph
Thu 1 AM59°FMostly Cloudy0% 0 mph
Thu 2 AM58°FMostly Cloudy0% 0 mph
Thu 3 AM57°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 Bernardino can differ.

7-day forecast

Overnight

Low 55°F

Mostly cloudy, with a low around 55. Northeast wind 0 to 5 mph.

Wednesday

High 76°F·Low 56°F

Mostly sunny, with a high near 76. Southeast wind 0 to 5 mph.

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

Thursday

High 75°F·Low 58°F

Partly sunny, with a high near 75. Northwest wind around 0 mph.

Thursday Night: Mostly cloudy, with a low around 58. Southwest wind around 0 mph.

Friday

High 70°F·Low 55°F

Partly sunny, with a high near 70.

Friday Night: Mostly cloudy, with a low around 55.

Saturday

High 71°F·Low 56°F

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

Saturday Night: Rain showers likely. Cloudy, with a low around 56.

Sunday

High 68°F·Low 54°F

A chance of rain showers. Partly sunny, with a high near 68.

Sunday Night: A slight chance of rain showers before 10pm. Partly cloudy, with a low around 54.

Monday

High 74°F·Low 55°F

Sunny, with a high near 74.

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

Tuesday

High 74°F

Sunny, with a high near 74.

Nearby cities

Larger cities in the area

Other cities in San Bernardino County

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

About this forecast

Forecast office
San Bernardino is served by the National Weather Service SGX forecast office, forecast zone CAZ048, county zone CAC071.
Location used
The Census Bureau's internal point for San Bernardino (34.1411, -117.2946), in San Bernardino County. Population: 224,775 (2024 estimate), number 18 of the 296 California cities on this site.
Radar
Nearest NWS radar: KSOX. View it on radar.weather.gov.

On Amazon

Weather-ready picks

As an Amazon Associate I earn from qualifying purchases.

Home & kitchen LEVOIT Air Purifier An air purifier for smoky or high-pollen days indoors. View on Amazon → Men’s fashion Hanes Fleece Hooded Sweatshirt A warm hoodie for chilly mornings. View on Amazon → Fitness & outdoors Stanley Quencher H2.0 Tumbler A big tumbler for long commutes and outdoor days. View on Amazon → Fitness & outdoors LifeStraw Personal Water Filter A personal water filter worth adding to an emergency kit. View on Amazon →

Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/34.1411,-117.2946 (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.

More California cities