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
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 for Mount Shasta
| 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) 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
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Dunsmuir
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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 Sep 19, 2026.