Rutherford, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rutherford, a community in Napa County, California.
Today
59°F
Light Rain
Rain before 5pm, then a chance of rain and patchy fog. Cloudy. High near 59, with temperatures falling to around 56 in the afternoon. East southeast wind 2 to 7 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Rutherford
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 59°F | Light Rain | 2 to 7 mph ESE | 95% |
| Tonight | 43°F | Chance Light Rain | 3 mph NNE | 48% |
| Wednesday | 69°F | Sunny | 5 mph NW | 1% |
| Wednesday Night | 41°F | Partly Cloudy then Patchy Fog | 3 mph NW | 0% |
| Thursday | 74°F | Patchy Fog then Sunny | 0 to 3 mph NNW | 0% |
| Thursday Night | 42°F | Mostly Clear | 1 mph NNW | 0% |
| Friday | 76°F | Sunny | 2 mph NNW | 0% |
| Friday Night | 44°F | Mostly Clear | 0 mph | 0% |
| Saturday | 77°F | Sunny | 2 mph NE | 0% |
| Saturday Night | 44°F | Mostly Clear | 1 mph N | 0% |
| Sunday | 76°F | Patchy Fog then Mostly Sunny | 2 mph NNW | 0% |
| Sunday Night | 45°F | Mostly Cloudy then Patchy Fog | 0 mph | 0% |
| Monday | 73°F | Areas Of Fog then Partly Sunny | 2 mph W | 2% |
| Monday Night | 46°F | Mostly Cloudy | 1 mph WNW | 4% |
Forecast source: National Weather Service (api.weather.gov) for Rutherford (38.459, -122.429). Updated through the day.
Growing snapshot for Rutherford
Last spring frost
Feb 3
First fall frost
Dec 4
Growing season
306 days
Hardiness zone
9b
More local growing data for Rutherford: nearby ZIP 94573 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
American Canyon
Angwin
Deer Park
Moskowite Corner
Napa
Oakville
Silverado Resort
St. Helena
Yountville
Climate data from the nearest NOAA station, Saint Helena, Ca (4 mi from Rutherford). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.