Weather in South San Francisco, CA
Updated 2026-08-11 10:00 local time · ZIP codes 94080
Partly cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
63°14% rain69°10% rain
72°6% rain73°5% rain76°5% rain74°6% rain73°6% rain71°8% rain68°10% rain63°18% rain59°19% rain
58°23% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 23%).
It feels like 63°F with winds near 7 mph.
72°F, 6% rain chance and 8 mph wind.
Visibility is around 10 mi; gusts may reach 14 mph.
Current temperature is 63°F, wind 7 mph, rain chance up to 23%.
UV index is 4. Sunscreen and sunglasses are sensible for longer outdoor time.
South San Francisco weather today
Partly cloudy and 63°F in South San Francisco, CA. Today's high is 76°F with a 18% rain chance. Winds are around 7 mph with gusts near 8 mph. Relative humidity is 72%, pressure is 29.97 inHg, and visibility is about 10 miles.
Tonight and tomorrow in South San Francisco
Sunrise is at 06:22 AM and sunset is at 08:07 PM. Tomorrow's forecast calls for Patchy rain nearby with a high near 68°F and a low near 58°F. The maximum rain chance is 36%.