Happy Valley, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Happy Valley, a community in Shasta County, California.
Tonight
61°F
Clear
Clear. Low around 61, with temperatures rising to around 63 overnight. Northwest wind around 5 mph.
7-day forecast for Happy Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Clear | 5 mph NW | 0% |
| Saturday | 94°F | Sunny | 2 to 8 mph N | 0% |
| Saturday Night | 62°F | Partly Cloudy | 2 mph NNW | 0% |
| Sunday | 90°F | Mostly Sunny | 5 mph ESE | 0% |
| Sunday Night | 63°F | Partly Cloudy | 1 to 5 mph ESE | 0% |
| Monday | 94°F | Mostly Sunny | 1 to 5 mph ENE | 0% |
| Monday Night | 63°F | Mostly Clear | 0 to 5 mph W | 0% |
| Tuesday | 93°F | Sunny | 1 to 5 mph SE | 0% |
| Tuesday Night | 63°F | Clear | 1 to 5 mph W | 0% |
| Wednesday | 94°F | Sunny | 5 mph NE | 0% |
| Wednesday Night | 63°F | Mostly Clear | 0 to 5 mph WNW | 0% |
| Thursday | 93°F | Sunny | 1 to 6 mph ESE | 0% |
| Thursday Night | 63°F | Mostly Clear | 1 to 6 mph W | 0% |
| Friday | 89°F | Sunny | 1 to 6 mph E | 1% |
Forecast source: National Weather Service (api.weather.gov) for Happy Valley (40.466, -122.418). Updated through the day.
Growing snapshot for Happy Valley
Last spring frost
Mar 3
First fall frost
Nov 21
Growing season
261 days
Hardiness zone
9a
More local growing data for Happy Valley: nearby ZIP 96007 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Redding Muni Ap, Ca (4.2 mi from Happy Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.