Mount Shasta, CA Weather & Growing Conditions
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
| 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). Updated through the day.
Growing snapshot for Mount Shasta, CA
Last spring frost
May 15
First fall frost
Oct 6
Growing season
143 days
Hardiness zone
8a
Explore more for Mount Shasta, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Mt Shasta, Ca (0.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.