California · NWS MTR office

San Jose, CA weather

It is 57°F and clear at San Jose / Reid / Hillv as of Oct 27, 8:50 PM PDT. Tonight: Partly Cloudy then Patchy Fog, low near 45°F. Forecast from the National Weather Service, issued Oct 27, 3:07 PM PDT.

Updated Oct 27, 11:15 PM PDT (snapshot)

Current conditions

Temperature

57°F

Clear

Wind

Calm

Humidity 67% · dew point 46°F

Pressure · visibility

30.02 inHg

Visibility 10 mi

Observed at San Jose / Reid / Hillv (KRHV), Oct 27, 8:50 PM PDT. Station readings can lag or be missing.

Alerts for this area

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

Around the NWS MTR forecast area

2 active alerts cover zones served by the MTR office near San Jose:

  • Coastal Flood Advisory (2)

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 San Jose (local time)
TimeTempForecastPrecip. chanceWind
Tue 11 PM52°FPartly Cloudy0%WNW 2 mph
Wed 12 AM51°FPartly Cloudy0%E 1 mph
Wed 1 AM50°FPartly Cloudy0%ESE 1 mph
Wed 2 AM49°FPartly Cloudy0%E 1 mph
Wed 3 AM48°FPatchy Fog0%ENE 1 mph
Wed 4 AM47°FPatchy Fog0%NE 1 mph
Wed 5 AM46°FPatchy Fog0%SE 1 mph
Wed 6 AM46°FPatchy Fog0%E 2 mph
Wed 7 AM46°FPatchy Fog0%SSE 2 mph
Wed 8 AM46°FPatchy Fog0%S 2 mph
Wed 9 AM52°FSunny0%W 2 mph
Wed 10 AM57°FSunny0%WNW 2 mph
Wed 11 AM61°FSunny0%NW 3 mph
Wed 12 PM65°FSunny0%NW 5 mph
Wed 1 PM67°FSunny0%WNW 5 mph
Wed 2 PM69°FSunny0%NW 6 mph
Wed 3 PM69°FSunny0%NW 7 mph
Wed 4 PM69°FMostly Sunny0%NW 7 mph
Wed 5 PM68°FPartly Sunny0%NW 5 mph
Wed 6 PM65°FMostly Cloudy0%NW 5 mph
Wed 7 PM61°FMostly Cloudy0%NW 5 mph
Wed 8 PM59°FCloudy0%NNW 2 mph
Wed 9 PM57°FCloudy0%NNW 2 mph
Wed 10 PM55°FCloudy0%NNW 2 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 Jose can differ.

7-day forecast

Tonight

Low 45°F

Patchy fog after 3am. Partly cloudy, with a low around 45. North northeast wind 1 to 7 mph.

Wednesday

High 70°F·Low 49°F

Patchy fog before 9am. Mostly sunny. High near 70, with temperatures falling to around 68 in the afternoon. West northwest wind 2 to 7 mph.

Wednesday Night: Mostly cloudy, with a low around 49. North northeast wind 1 to 5 mph.

Thursday

High 70°F·Low 48°F

Mostly cloudy, with a high near 70. South wind 1 to 5 mph.

Thursday Night: Patchy fog after 3am. Mostly cloudy, with a low around 48. South southwest wind 1 to 5 mph.

Friday

High 67°F·Low 45°F

Patchy fog before 10am. Mostly sunny, with a high near 67.

Friday Night: Patchy fog after 5am. Partly cloudy, with a low around 45.

Saturday

High 64°F·Low 44°F

Areas of fog before 9am, then a slight chance of rain. Partly sunny, with a high near 64.

Saturday Night: A slight chance of rain before 4am, then patchy fog. Partly cloudy, with a low around 44.

Sunday

High 66°F·Low 45°F

Patchy fog before 7am. Sunny, with a high near 66.

Sunday Night: Mostly clear, with a low around 45.

Monday

High 71°F·Low 49°F

Mostly sunny, with a high near 71.

Monday Night: A slight chance of rain after 4am. Partly cloudy, with a low around 49.

Tuesday

High 71°F

A chance of rain before 5pm. Mostly sunny, with a high near 71.

Nearby cities

Other cities in Santa Clara County

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

About this forecast

Forecast office
San Jose is served by the National Weather Service MTR forecast office, forecast zone CAZ513, county zone CAC085.
Location used
The Census Bureau's internal point for San Jose (37.2960, -121.8146), in Santa Clara County. Population: 997,368 (2024 estimate), number 3 of the 296 California cities on this site.
Radar
Nearest NWS radar: KMUX. 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/37.296,-121.8146 (forecast issued Oct 27, 3:07 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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