South San Francisco, California Weather Forecast
Today in South San Francisco: clear skies with a high near 85°F and a low around 60°F. Rain chance 0%. Rain chances peak at 34% on Tuesday. Cooling trend: highs fall from 85°F today to 62°F by Monday.
Forecast updated 7:05 PM PDT, Oct 16
Active Weather Alerts
7-Day Forecast for South San Francisco
Today 10/16
85°60°
Sat 10/17
80°59°
Sun 10/18
66°56°
Mon 10/19
62°55°
Tue 10/20
34%
64°54°
Wed 10/21
15%
68°53°
Thu 10/22
11%
65°55°
Next 24 Hours
| Now | 9 PM | 10 PM | 11 PM | Sat12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sky |  | | | | | | | | | | | | | | | | | | | | | | | |
| Temp | 71° | 69° | 68° | 66° | 64° | 64° | 63° | 62° | 62° | 61° | 60° | 59° | 60° | 65° | 70° | 74° | 78° | 80° | 80° | 79° | 77° | 76° | 71° | 67° |
| Rain | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 1% |
| Wind | WNW 5 | WNW 3 | WNW 2 | WNW 2 | NW 1 | WNW 0 | WNW 0 | WNW 0 | WNW 0 | WNW 0 | WNW 1 | WNW 1 | NNW 1 | N 2 | NE 2 | NE 3 | N 3 | NW 3 | WNW 5 | WNW 7 | W 10 | W 11 | W 11 | W 9 |
Growing Conditions
Growing degree days
2,093
since Apr 1, base 50°F
Rain, last 30 days
0.00 in
model analysis
Rain, year to date
13.92 in
since Jan 1
2-inch soil temperature
63°F
yesterday, daily average
Reference ET, last 7 days
0.85 in
FAO-56 grass reference
Through Oct 15. Season totals use model analysis for this point and update every morning.
Soil, ET and spray tools for South San Francisco →
Current Stats & Observations
NWS Forecast
About South San Francisco Weather
South San Francisco sits at about 23 feet above sea level in San Mateo County, California. About 67,789 people live in the South San Francisco area. Official forecasts and warnings for the area come from the National Weather Service MTR office, and the nearest NEXRAD radar site is KMUX. The city is in USDA plant hardiness zone 10a, where the coldest winter night typically falls between 30 to 35°F. Freezing temperatures are rare here.
Nearby Forecasts
Daly City, CA
San Francisco, CA
San Mateo, CA
Alameda, CA
Oakland, CA
San Leandro, CA
Redwood City, CA
Berkeley, CA
Largest Cities in California
Los Angeles, CA
San Francisco, CA
San Diego, CA
Riverside, CA
Sacramento, CA
San Jose, CA
Fresno, CA
Concord, CA
Mission Viejo, CA
Bakersfield, CA
All California forecasts (193) →
All states →
Interactive forecast tools →