Mount Shasta, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mount Shasta, a city in Siskiyou County, California.
Today
48°F
Light Rain
Rain before 4pm. Mostly cloudy. High near 48, with temperatures falling to around 44 in the afternoon. South southeast wind 0 to 7 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Mount Shasta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 48°F | Light Rain | 0 to 7 mph SSE | 80% |
| Tonight | 30°F | Partly Cloudy | 0 mph | 2% |
| Wednesday | 57°F | Mostly Sunny | 0 mph | 4% |
| Wednesday Night | 33°F | Partly Cloudy | 0 mph | 1% |
| Thursday | 59°F | Sunny | 0 mph | 0% |
| Thursday Night | 35°F | Mostly Clear | 0 mph | 0% |
| Friday | 66°F | Mostly Sunny | 0 mph | 0% |
| Friday Night | 39°F | Mostly Clear | 1 mph NE | 0% |
| Saturday | 68°F | Sunny | 3 mph SE | 0% |
| Saturday Night | 38°F | Partly Cloudy | 2 to 6 mph SSE | 0% |
| Sunday | 62°F | Mostly Sunny | 0 to 3 mph S | 1% |
| Sunday Night | 38°F | Mostly Cloudy | 2 mph SE | 2% |
| Monday | 60°F | Partly Sunny | 2 mph SSE | 9% |
| Monday Night | 36°F | Partly Cloudy then Slight Chance Light Rain | 2 mph SSE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Mount Shasta (41.321, -122.315). Updated through the day.
Growing snapshot for Mount Shasta
Last spring frost
May 15
First fall frost
Oct 6
Growing season
143 days
Hardiness zone
8a
More local growing data for Mount Shasta: nearby ZIP 96067 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Carrick
Castella
Dorris
Dunsmuir
Edgewood
Etna
Fort Jones
Gazelle
Greenview
Grenada
Happy Camp
Hornbrook
Lake Shastina
Macdoel
McCloud
Montague
Mount Hebron
Tennant
Weed
Yreka
Climate data from the nearest NOAA station, Mt Shasta, Ca (0.3 mi from Mount Shasta). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.