Campbell, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Campbell, a city in Santa Clara County, California.
Tonight
48°F
Partly Cloudy then Patchy Fog
Patchy fog between 1am and 4am. Partly cloudy, with a low around 48. North northeast wind 2 to 7 mph.
7-day forecast for Campbell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Partly Cloudy then Patchy Fog | 2 to 7 mph NNE | 4% |
| Wednesday | 68°F | Sunny | 2 to 10 mph NW | 1% |
| Wednesday Night | 48°F | Mostly Cloudy then Patchy Fog | 1 to 8 mph W | 1% |
| Thursday | 72°F | Patchy Fog then Mostly Sunny | 2 to 7 mph NW | 0% |
| Thursday Night | 46°F | Clear | 1 to 5 mph N | 0% |
| Friday | 76°F | Sunny | 1 to 6 mph N | 0% |
| Friday Night | 49°F | Mostly Clear | 0 to 6 mph NE | 0% |
| Saturday | 79°F | Sunny | 0 to 3 mph NNW | 0% |
| Saturday Night | 50°F | Mostly Clear | 0 to 3 mph NNW | 0% |
| Sunday | 76°F | Sunny | 0 to 5 mph NNW | 0% |
| Sunday Night | 50°F | Partly Cloudy | 0 to 5 mph NNW | 0% |
| Monday | 74°F | Mostly Sunny | 1 to 6 mph NNW | 1% |
| Monday Night | 49°F | Partly Cloudy | 1 to 6 mph NNW | 1% |
| Tuesday | 73°F | Sunny | 0 to 5 mph N | 7% |
Forecast source: National Weather Service (api.weather.gov) for Campbell (37.280, -121.953). Updated through the day.
Growing snapshot for Campbell
Last spring frost
Feb 2
First fall frost
Dec 6
Growing season
310 days
Hardiness zone
9b
More local growing data for Campbell: nearby ZIP 95008 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Alum Rock
Burbank
Cambrian Park
Cupertino
East Foothills
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Los Altos
Los Altos Hills
Los Gatos
Loyola
Menlo Park
Milpitas
Monte Sereno
Morgan Hill
Mountain View
Palo Alto
San Jose
San Martin
Santa Clara
Saratoga
Stanford
Sunnyvale
Climate data from the nearest NOAA station, Los Gatos, Ca (3.3 mi from Campbell). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.