Hidden Valley Lake, CA Weather & Growing Conditions
Today
55°F
Light Rain
Rain. Cloudy, with a high near 55. East southeast wind around 7 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 55°F | Light Rain | 7 mph ESE | 99% |
| Tonight | 37°F | Light Rain Likely then Patchy Fog | 2 to 7 mph NNW | 68% |
| Wednesday | 67°F | Patchy Fog then Mostly Sunny | 6 mph WNW | 0% |
| Wednesday Night | 37°F | Partly Cloudy then Patchy Frost | 2 to 6 mph NW | 0% |
| Thursday | 71°F | Patchy Frost then Sunny | 3 mph NW | 0% |
| Thursday Night | 41°F | Mostly Clear | 2 mph NNW | 0% |
| Friday | 75°F | Sunny | 2 mph WNW | 0% |
| Friday Night | 44°F | Mostly Clear | 2 mph NNW | 0% |
| Saturday | 75°F | Sunny | 0 to 3 mph E | 0% |
| Saturday Night | 43°F | Mostly Clear | 2 mph E | 0% |
| Sunday | 74°F | Mostly Sunny | 2 mph SW | 0% |
| Sunday Night | 43°F | Partly Cloudy then Patchy Fog | 2 mph WNW | 1% |
| Monday | 71°F | Patchy Fog then Mostly Sunny | 0 to 3 mph WSW | 1% |
| Monday Night | 41°F | Partly Cloudy then Areas Of Fog | 0 to 3 mph WNW | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hidden Valley Lake, CA
Last spring frost
Mar 2
First fall frost
Nov 23
Growing season
263 days
Hardiness zone
9a
Explore more for Hidden Valley Lake, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Calistoga, Ca (11.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.