Current Conditions

San Lorenzo, California

58°F15°C
Drizzle

Wind

S 4 mph6 km/h

Humidity

86%

Cloud Cover

59%

As of Wednesday, September 2, 2026 at 12:42 AM PDT

Today's Outlook

Day

Overcast and warm, with a high of 72°F22°C and morning low of 62°F17°C. Breezy from the SW at 8 to 9 mph12 to 15 km/h. 26% chance of drizzle in the afternoon.

Night

Mostly cloudy, with a low around 58°F14°C. Light wind from the SW around 5 mph7 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 72°F22°CLow 58°F14°CPrecip 0.01 in0.3 mm26%Cloud 72%Wind SW 6 mph10 km/hWednesday: Overcast and warm, with a high of 72°F22°C and morning low of 62°F17°C. Breezy from the SW at 8 to 9 mph12 to 15 km/h. 26% chance of drizzle in the afternoon. Wednesday Night: Mostly cloudy, with a low around 58°F14°C. Light wind from the SW around 5 mph7 km/h.
DrizzleHigh 71°F22°CLow 58°F14°CPrecip 0.01 in0.2 mm11%Cloud 69%Wind SW 6 mph10 km/hThursday: Mostly cloudy and warm, with a high of 71°F22°C and morning low of 61°F16°C. Breezy from the SW at 8 to 10 mph13 to 16 km/h. Thursday Night: Mostly cloudy, with a low around 58°F14°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. 11% chance of drizzle.
ClearHigh 71°F22°CLow 58°F15°CPrecip 0 in0.1 mm9%Cloud 26%Wind W 6 mph10 km/hFriday: Mostly clear and warm, with a high of 71°F22°C and morning low of 61°F16°C. Breezy from the W at 7 to 9 mph11 to 15 km/h. Friday Night: Partly cloudy, with a low around 58°F15°C. Light wind from the W around 5 mph8 km/h.
ClearHigh 72°F22°CLow 55°F13°CPrecip 0 in0 mmCloud 28%Wind WSW 5 mph9 km/hSaturday: Partly cloudy and warm, with a high of 72°F22°C and morning low of 58°F15°C. Breezy from the WSW at 7 to 9 mph11 to 15 km/h. Saturday Night: Partly cloudy, with a low around 55°F13°C. Light wind from the WSW around 4 mph7 km/h.
ClearHigh 72°F22°CLow 56°F13°CPrecip 0 in0 mmCloud 22%Wind WSW 7 mph11 km/hSunday: Mostly clear and warm, with a high of 72°F22°C and morning low of 60°F15°C. Breezy from the W at 8 to 10 mph13 to 16 km/h. Sunday Night: Partly cloudy, with a low around 56°F13°C. Light wind from the WSW around 5 mph8 km/h.
ClearHigh 78°F25°CLow 55°F13°CPrecip 0 in0 mmCloud 19%Wind W 4 mph7 km/hMonday: Mostly clear and warm, with a high of 78°F25°C and morning low of 58°F14°C. Breezy from the WNW at 5 to 8 mph8 to 13 km/h. Monday Night: Mostly clear, with a low around 55°F13°C. Light wind from the WSW around 4 mph6 km/h.
ClearHigh 79°F26°CLow 57°F14°CPrecip 0 in0 mmCloud 28%Wind WSW 4 mph7 km/hTuesday: Partly cloudy and warm, with a high of 79°F26°C and morning low of 60°F15°C. Breezy from the W at 5 to 8 mph8 to 12 km/h. Tuesday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the SW around 4 mph6 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 272°F22°C58°F14°C0.01 in0.3 mm· 26%72%DrizzleSW 6 mph10 km/h
ThursdaySep 371°F22°C58°F14°C0.01 in0.2 mm· 11%69%DrizzleSW 6 mph10 km/h
FridaySep 471°F22°C58°F15°C0 in0.1 mm· 9%26%ClearW 6 mph10 km/h
SaturdaySep 572°F22°C55°F13°C0 in0 mm· —28%ClearWSW 5 mph9 km/h
SundaySep 672°F22°C56°F13°C0 in0 mm· —22%ClearWSW 7 mph11 km/h
MondaySep 778°F25°C55°F13°C0 in0 mm· —19%ClearW 4 mph7 km/h
TuesdaySep 879°F26°C57°F14°C0 in0 mm· —28%ClearWSW 4 mph7 km/h
WednesdaySep 978°F26°C59°F15°C0.02 in0.6 mm· 5%32%ClearWSW 5 mph8 km/h
ThursdaySep 1077°F25°C60°F16°C0.01 in0.3 mm· 4%36%ClearWSW 5 mph8 km/h
FridaySep 1175°F24°C59°F15°C0.02 in0.6 mm· 4%37%ClearWSW 6 mph9 km/h
SaturdaySep 1274°F24°C59°F15°C0.04 in1 mm· 7%41%Partly CloudyWSW 5 mph8 km/h
SundaySep 1376°F24°C58°F15°C0.05 in1.2 mm· 6%36%ClearWSW 5 mph8 km/h
MondaySep 1477°F25°C59°F15°C0.01 in0.2 mm· 5%28%ClearWSW 5 mph8 km/h
TuesdaySep 1578°F26°C59°F15°C0.02 in0.5 mm· 3%27%ClearWSW 4 mph7 km/h
WednesdaySep 1678°F26°C59°F15°C0.02 in0.4 mm· 4%28%ClearWSW 5 mph7 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 37.6741°N, 122.1332°W·Elevation: 13m·Timezone: America/Los_Angeles·Population: 23,452