Mount Shasta, CA Weather & Growing Conditions
Today
83°F
Sunny
Sunny. High near 83, with temperatures falling to around 81 in the afternoon. Northwest wind 1 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 1 to 7 mph NW | 0% |
| Tonight | 48°F | Partly Cloudy | 8 mph NNW | 0% |
| Sunday | 84°F | Mostly Sunny | 2 to 8 mph SSE | 0% |
| Sunday Night | 49°F | Mostly Clear | 0 to 8 mph S | 0% |
| Monday | 85°F | Sunny | 2 mph NNW | 1% |
| Monday Night | 49°F | Mostly Clear | 2 mph N | 1% |
| Tuesday | 84°F | Sunny | 2 mph WNW | 0% |
| Tuesday Night | 47°F | Mostly Clear | 2 mph NNW | 0% |
| Wednesday | 83°F | Sunny | 2 mph SSW | 0% |
| Wednesday Night | 47°F | Mostly Clear | 2 mph NNW | 0% |
| Thursday | 82°F | Sunny | 1 to 5 mph SE | 1% |
| Thursday Night | 47°F | Partly Cloudy | 3 mph NNW | 2% |
| Friday | 77°F | Mostly Sunny | 5 mph ESE | 2% |
| Friday Night | 44°F | Partly Cloudy | 5 mph NNW | 2% |
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 Sep 19, 2026.