Current Conditions

South San Francisco, California

62°F16°C
Clear

Wind

WNW 11 mph18 km/h

Humidity

81%

Cloud Cover

17%

As of Thursday, July 23, 2026 at 9:03 PM PDT

Today's Outlook

Night

Partly cloudy, with a low around 57°F14°C. Breezy from the W at 10 to 12 mph16 to 19 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
FridayJul 24ClearHigh 66°F19°CLow 57°F14°CPrecip 0 in0 mmCloud 37%Wind WNW 11 mph17 km/hFriday: Partly cloudy and mild, with a high of 66°F19°C and morning low of 58°F15°C. Breezy from the WNW at 12 to 14 mph19 to 22 km/h. Friday Night: Partly cloudy, with a low around 57°F14°C. Breezy from the W at 10 to 12 mph16 to 19 km/h.
SaturdayJul 25ClearHigh 67°F19°CLow 57°F14°CPrecip 0 in0 mmCloud 31%Wind WNW 11 mph17 km/hSaturday: Partly cloudy and mild, with a high of 67°F19°C and morning low of 59°F15°C. Breezy from the WNW at 12 to 13 mph19 to 21 km/h. Saturday Night: Partly cloudy, with a low around 57°F14°C. Breezy from the WNW at 10 to 11 mph15 to 17 km/h.
SundayJul 26Partly CloudyHigh 66°F19°CLow 58°F14°CPrecip 0 in0.1 mm1%Cloud 46%Wind W 10 mph16 km/hSunday: Partly cloudy and mild, with a high of 66°F19°C and morning low of 59°F15°C. Breezy from the W at 11 to 12 mph17 to 20 km/h. Sunday Night: Partly cloudy, with a low around 58°F14°C. Breezy from the W at 9 to 11 mph15 to 18 km/h.
MondayJul 27ClearHigh 67°F19°CLow 57°F14°CPrecip 0 in0 mmCloud 28%Wind W 10 mph16 km/hMonday: Partly cloudy and mild, with a high of 67°F19°C and morning low of 59°F15°C. Breezy from the W at 10 to 12 mph17 to 20 km/h. Monday Night: Partly cloudy, with a low around 57°F14°C. Breezy from the W at 9 to 11 mph15 to 17 km/h.
TuesdayJul 28ClearHigh 69°F21°CLow 58°F14°CPrecip 0 in0 mmCloud 16%Wind W 10 mph16 km/hTuesday: Mostly clear and warm, with a high of 69°F21°C and morning low of 60°F16°C. Breezy from the W at 10 to 13 mph17 to 20 km/h. Tuesday Night: Mostly clear, with a low around 58°F14°C. Breezy from the W at 9 to 10 mph14 to 17 km/h.
WednesdayJul 29ClearHigh 68°F20°CLow 58°F15°CPrecip 0 in0 mmCloud 29%Wind W 8 mph14 km/hWednesday: Partly cloudy and warm, with a high of 68°F20°C and morning low of 60°F15°C. Breezy from the W at 9 to 11 mph15 to 18 km/h. Wednesday Night: Partly cloudy, with a low around 58°F15°C. Breezy from the W at 8 to 9 mph13 to 15 km/h.
ThursdayJul 30ClearHigh 68°F20°CLow 57°F14°CPrecip 0 in0 mmCloud 33%Wind W 8 mph12 km/hThursday: Partly cloudy and mild, with a high of 68°F20°C and morning low of 59°F15°C. Breezy from the W at 8 to 10 mph13 to 17 km/h. Thursday Night: Partly cloudy, with a low around 57°F14°C. Breezy from the W at 7 to 8 mph11 to 13 km/h.

15-Day Forecast

Day High (°F) Low (°F) Precip (mm) Cloud Cover (%) Condition Wind (mph)

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: 37.6547°N, 122.4077°W·Elevation: 4m·Timezone: America/Los_Angeles·Population: 67,271