California · NWS MTR office

San Francisco, CA weather

It is 49°F at BARNABY as of Oct 28, 1:11 AM PDT. Overnight: Partly Cloudy, low near 55°F. Forecast from the National Weather Service, issued Oct 28, 1:26 AM PDT.

Updated Oct 28, 2:13 AM PDT (snapshot)

Current conditions

Temperature

49°F

Partly Cloudy

Wind

Calm

Humidity 97% · dew point 48°F

Pressure · visibility

—

Visibility —

Observed at BARNABY (BBEC1), Oct 28, 1:11 AM PDT. Station readings can lag or be missing.

Alerts for this area

Coastal Flood Advisory Minor Expected

Coastal Flood Advisory issued October 28 at 12:20AM PDT until October 31 at 6:00PM PDT by NWS San Francisco CA

Area
San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
In effect
Oct 28, 12:20 AM PDT
Until
Oct 31, 6:00 PM PDT
Issued by
NWS San Francisco CA
Full text

* WHAT...Up to 1.9 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. * WHERE...Bay Shoreline locations of San Pablo Bay, San Francisco Bay, and Monterey Bay. * WHEN...Until 6 PM PDT Saturday. * IMPACTS...High tides will result in flooding of low-lying infrastructure, isolated road closures, and coastal erosion. Rising tides will bring water and waves farther up the beach than normal, restricting escape from beaches and coastal areas. More substantial impacts are expected along bayshore Marin County where increased flooding is anticipated across low lying areas. * ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide is expected to be 1.9 ft above normal (7.7 ft MLLW) at 12:56 PM Wednesday 10/28, 1.9 ft above normal (7.7 ft MLLW) at 01:43 PM Thursday 10/29, 1.6 ft above normal (7.4 ft MLLW) at 02:39 PM Friday 10/30, and 1.1 feet above normal (6.9 ft MLLW) at 03:44 PM on Saturday 10/31. These predictions include up to 1.2 ft of surge that will enhance the astronomical tide and flooding threat. High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively.

What to do: If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

Around the NWS MTR forecast area

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

  • Coastal Flood Advisory (2)

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 Francisco (local time)
TimeTempForecastPrecip. chanceWind
Wed 4 AM57°FPartly Cloudy0%N 14 mph
Wed 5 AM56°FPartly Cloudy0%N 12 mph
Wed 6 AM57°FMostly Sunny0%N 10 mph
Wed 7 AM57°FSunny0%N 9 mph
Wed 8 AM56°FSunny0%N 9 mph
Wed 9 AM58°FSunny0%N 8 mph
Wed 10 AM58°FMostly Sunny0%N 7 mph
Wed 11 AM58°FMostly Sunny0%N 7 mph
Wed 12 PM59°FMostly Sunny0%NNW 7 mph
Wed 1 PM60°FMostly Sunny0%NNW 7 mph
Wed 2 PM60°FPartly Sunny0%NNW 9 mph
Wed 3 PM60°FPartly Sunny0%NNW 12 mph
Wed 4 PM60°FMostly Sunny0%NNW 13 mph
Wed 5 PM60°FMostly Sunny0%NNW 14 mph
Wed 6 PM60°FPartly Cloudy0%NNW 15 mph
Wed 7 PM60°FPartly Cloudy0%NNW 15 mph
Wed 8 PM59°FPartly Cloudy0%NNW 15 mph
Wed 9 PM59°FMostly Cloudy0%NNW 15 mph
Wed 10 PM59°FMostly Cloudy0%NNW 15 mph
Wed 11 PM59°FMostly Cloudy0%NNW 15 mph
Thu 12 AM59°FMostly Cloudy0%NNW 14 mph
Thu 1 AM59°FMostly Cloudy0%NNW 13 mph
Thu 2 AM59°FMostly Cloudy0%NNW 12 mph
Thu 3 AM58°FMostly Cloudy0%NNW 10 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 Francisco can differ.

7-day forecast

Overnight

Low 55°F

Partly cloudy, with a low around 55. North northwest wind 12 to 17 mph, with gusts as high as 22 mph.

Wednesday

High 61°F·Low 56°F

Mostly sunny, with a high near 61. North northwest wind 7 to 14 mph, with gusts as high as 18 mph.

Wednesday Night: Mostly cloudy. Low around 56, with temperatures rising to around 58 overnight. North northwest wind 8 to 15 mph, with gusts as high as 20 mph.

Thursday

High 60°F·Low 56°F

Partly sunny, with a high near 60. North northwest wind 3 to 8 mph.

Thursday Night: Mostly cloudy, with a low around 56. Northwest wind 8 to 16 mph, with gusts as high as 20 mph.

Friday

High 60°F·Low 54°F

Mostly sunny, with a high near 60.

Friday Night: Mostly cloudy, with a low around 54.

Saturday

High 59°F·Low 54°F

A slight chance of rain after 5pm. Mostly cloudy, with a high near 59.

Saturday Night: A slight chance of rain before 4am. Partly cloudy, with a low around 54.

Sunday

High 61°F·Low 56°F

Sunny, with a high near 61.

Sunday Night: Partly cloudy, with a low around 56.

Monday

High 62°F·Low 57°F

Partly sunny, with a high near 62.

Monday Night: A slight chance of rain after 4am. Mostly cloudy, with a low around 57.

Tuesday

High 62°F

A chance of rain. Partly sunny, with a high near 62.

Nearby cities

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

About this forecast

Forecast office
San Francisco is served by the National Weather Service MTR forecast office, forecast zone CAZ006, county zone CAC075.
Location used
The Census Bureau's internal point for San Francisco (37.7272, -123.0322), in San Francisco County. Population: 827,526 (2024 estimate), number 4 of the 296 California cities on this site.
Radar
Nearest NWS radar: KMUX. View it on radar.weather.gov.

On Amazon

Weather-ready picks

As an Amazon Associate I earn from qualifying purchases.

Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/37.7272,-123.0322 (forecast issued Oct 28, 1:26 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