Cassel, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cassel, a community in Shasta County, California.
This Afternoon
50°F
Chance Light Rain
A chance of rain before 5pm, then patchy fog. Mostly cloudy. High near 50, with temperatures falling to around 45 in the afternoon. Northwest wind 1 to 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Cassel
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 50°F | Chance Light Rain | 1 to 5 mph NW | 36% |
| Tonight | 30°F | Haze then Areas Of Fog | 2 mph SE | 7% |
| Wednesday | 57°F | Widespread Frost then Mostly Sunny | 3 mph NE | 0% |
| Wednesday Night | 28°F | Widespread Frost | 2 mph SE | 0% |
| Thursday | 60°F | Widespread Frost then Sunny | 3 mph ENE | 0% |
| Thursday Night | 27°F | Widespread Frost | 3 mph E | 0% |
| Friday | 66°F | Widespread Frost then Mostly Sunny | 2 mph NE | 0% |
| Friday Night | 31°F | Mostly Clear | 1 to 7 mph E | 0% |
| Saturday | 69°F | Sunny | 5 mph ENE | 0% |
| Saturday Night | 31°F | Partly Cloudy | 5 mph SSW | 0% |
| Sunday | 65°F | Mostly Sunny | 3 mph S | 0% |
| Sunday Night | 31°F | Mostly Cloudy | 1 to 5 mph S | 1% |
| Monday | 63°F | Partly Sunny | 3 mph WSW | 5% |
| Monday Night | 30°F | Partly Cloudy | 3 mph SW | 5% |
Forecast source: National Weather Service (api.weather.gov) for Cassel (40.925, -121.548). Updated through the day.
Growing snapshot for Cassel
Last spring frost
May 29
First fall frost
Sep 19
Growing season
113 days
Hardiness zone
7b
More local growing data for Cassel: nearby ZIP 96016 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Hat Creek, Ca (3.2 mi from Cassel). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.