Palo Alto, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Palo Alto, a city in Santa Clara County, California.
Today
68°F
Sunny
Sunny. High near 68, with temperatures falling to around 64 in the afternoon. North northwest wind 5 to 10 mph.
7-day forecast for Palo Alto
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Sunny | 5 to 10 mph NNW | 1% |
| Tonight | 49°F | Mostly Cloudy | 2 to 9 mph W | 1% |
| Thursday | 72°F | Patchy Fog then Sunny | 2 to 6 mph NW | 0% |
| Thursday Night | 50°F | Mostly Clear | 1 to 5 mph SW | 0% |
| Friday | 73°F | Sunny | 1 to 6 mph NNE | 0% |
| Friday Night | 51°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Saturday | 76°F | Sunny | 0 to 3 mph NNE | 0% |
| Saturday Night | 51°F | Mostly Clear | 2 mph WNW | 0% |
| Sunday | 75°F | Mostly Sunny | 1 to 5 mph NNW | 0% |
| Sunday Night | 52°F | Partly Cloudy | 0 to 5 mph NW | 0% |
| Monday | 73°F | Mostly Sunny | 0 to 6 mph NW | 0% |
| Monday Night | 52°F | Partly Cloudy | 0 to 6 mph W | 1% |
| Tuesday | 74°F | Mostly Sunny | 0 to 5 mph NW | 1% |
| Tuesday Night | 53°F | Partly Cloudy | 1 to 5 mph WSW | 9% |
Forecast source: National Weather Service (api.weather.gov) for Palo Alto (37.397, -122.143). Updated through the day.
Growing snapshot for Palo Alto
Last spring frost
Feb 1
First fall frost
Dec 7
Growing season
310 days
Hardiness zone
9b
More local growing data for Palo Alto: nearby ZIP 94306 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Alum Rock
Burbank
Cambrian Park
Campbell
Cupertino
East Foothills
East Palo Alto
Fruitdale
Gilroy
Los Altos
Los Altos Hills
Los Gatos
Loyola
Menlo Park
Milpitas
Monte Sereno
Morgan Hill
Mountain View
San Jose
San Martin
Santa Clara
Saratoga
Stanford
Sunnyvale
Climate data from the nearest NOAA station, Palo Alto, Ca (2 mi from Palo Alto). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.