South San Francisco, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for South San Francisco, CA in one place.
Sunny. High near 74, with temperatures falling to around 72 in the afternoon. North northwest wind around 9 mph, with gusts as high as 18 mph.
Local Weather Overview
This forecast page for South San Francisco, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 13, 2026 4:56 PM PDT.
The active forecast window currently covers Oct 13 to Oct 19, 2026 for South San Francisco, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 19, 2026
- Latest sync
- Oct 13, 2026 4:56 PM PDT
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in South San Francisco
Friday looks like the warmest upcoming period in South San Francisco at 86 degrees F.
Tonight is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Monday at about 7 to 21 mph W.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 4:56 PM PDT
- Coverage
- 8 days
- Time zone
- America/Los_Angeles
- Forecast office
- MTR
- Radar station
- KMUX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 47. West northwest wind 0 to 10 mph, with gusts as high as 21 mph.
Sunny, with a high near 76. South southwest wind 0 to 5 mph.
Mostly clear, with a low around 49. West southwest wind 0 to 3 mph.
Sunny, with a high near 83. Northeast wind 0 to 5 mph.
Clear, with a low around 54.
Sunny, with a high near 86.
Clear, with a low around 53.
Sunny, with a high near 80.
Areas of fog after 2am. Mostly clear, with a low around 50.
Areas of fog before 11am. Sunny, with a high near 69.
Partly cloudy, with a low around 49.
A slight chance of rain after 11am. Mostly sunny, with a high near 65.
A slight chance of rain before 5am. Partly cloudy, with a low around 47.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 13
|
Sunny
|
74°F |
9 mph
NNW
|
|
Tonight
Oct 13
|
Mostly Clear
|
47°F |
0 to 10 mph
WNW
|
|
Wednesday
Oct 14
|
Sunny
|
76°F |
0 to 5 mph
SSW
|
|
Wednesday Night
Oct 14
|
Mostly Clear
|
49°F |
0 to 3 mph
WSW
|
|
Thursday
Oct 15
|
Sunny
|
83°F |
0 to 5 mph
NE
|
|
Thursday Night
Oct 15
|
Clear
|
54°F |
0 mph
|
|
Friday
Oct 16
|
Sunny
|
86°F |
0 to 5 mph
ENE
|
|
Friday Night
Oct 16
|
Clear
|
53°F |
1 mph
WNW
|
|
Saturday
Oct 17
|
Sunny
|
80°F |
0 to 3 mph
SSW
|
|
Saturday Night
Oct 17
|
Mostly Clear then Areas Of Fog
|
50°F |
0 to 3 mph
WSW
|
|
Sunday
Oct 18
|
Areas Of Fog then Sunny
|
69°F |
0 to 12 mph
WSW
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
49°F |
7 to 10 mph
W
|
|
Monday
Oct 19
|
Slight Chance Light Rain
|
65°F |
7 to 21 mph
W
|
|
Monday Night
Oct 19
|
Slight Chance Light Rain
|
47°F |
8 to 21 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South San Francisco.
