Dunsmuir, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dunsmuir, a city in Siskiyou County, California.
Overnight
63°F
Clear
Clear. Low around 63, with temperatures rising to around 66 overnight. North northwest wind around 7 mph.
7-day forecast for Dunsmuir
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Clear | 7 mph NNW | 0% |
| Tuesday | 99°F | Sunny | 2 to 6 mph W | 0% |
| Tuesday Night | 65°F | Clear | 1 to 6 mph WNW | 0% |
| Wednesday | 97°F | Sunny | 1 to 10 mph SE | 0% |
| Wednesday Night | 63°F | Clear | 0 to 9 mph W | 0% |
| Thursday | 96°F | Sunny | 0 to 6 mph SE | 0% |
| Thursday Night | 64°F | Clear | 0 to 6 mph W | 0% |
| Friday | 98°F | Sunny | 0 to 5 mph E | 0% |
| Friday Night | 64°F | Clear | 0 to 5 mph N | 0% |
| Saturday | 98°F | Sunny | 1 to 5 mph S | 1% |
| Saturday Night | 64°F | Clear | 6 mph NW | 1% |
| Sunday | 94°F | Sunny | 0 to 5 mph W | 1% |
| Sunday Night | 62°F | Clear | 2 to 6 mph NNW | 0% |
| Monday | 90°F | Sunny | 1 to 6 mph SE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Dunsmuir (41.232, -122.271). Updated through the day.
Growing snapshot for Dunsmuir
Last spring frost
Apr 23
First fall frost
Oct 27
Growing season
185 days
Hardiness zone
8a
More local growing data for Dunsmuir: nearby ZIP 96025 weather · frost dates · planting calendar · California frost dates
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Weed
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Climate data from the nearest NOAA station, Dunsmuir Trtmt Pl, Ca (2.3 mi from Dunsmuir). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.