Rutherford, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rutherford, a community in Napa County, California.
Today
98°F
Mostly Sunny
Mostly sunny. High near 98, with temperatures falling to around 95 in the afternoon. South wind 0 to 5 mph.
7-day forecast for Rutherford
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 98°F | Mostly Sunny | 0 to 5 mph S | 0% |
| Tonight | 54°F | Partly Cloudy then Patchy Fog | 0 to 5 mph SW | 0% |
| Wednesday | 95°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 53°F | Partly Cloudy then Areas Of Fog | 0 to 3 mph W | 0% |
| Thursday | 94°F | Patchy Fog then Mostly Sunny | 0 to 5 mph WSW | 0% |
| Thursday Night | 55°F | Partly Cloudy | 0 to 5 mph W | 0% |
| Friday | 99°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Friday Night | 56°F | Mostly Clear | 0 to 5 mph W | 0% |
| Saturday | 98°F | Sunny | 0 to 5 mph SW | 0% |
| Saturday Night | 58°F | Mostly Clear | 0 to 5 mph WSW | 0% |
| Sunday | 95°F | Sunny | 0 to 6 mph SW | 0% |
| Sunday Night | 55°F | Mostly Clear then Areas Of Fog | 0 to 6 mph WNW | 0% |
| Monday | 88°F | Areas Of Fog then Sunny | 0 to 7 mph SSW | 0% |
| Monday Night | 52°F | Partly Cloudy | 0 to 7 mph WSW | 0% |
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 Aug 4, 2026.