Alleghany, CA Weather & Growing Conditions
Overnight
59°F
Clear
Clear, with a low around 59. Northeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Clear | 6 mph NE | 0% |
| Saturday | 79°F | Sunny | 2 to 8 mph ESE | 0% |
| Saturday Night | 61°F | Partly Cloudy | 1 to 6 mph NE | 0% |
| Sunday | 77°F | Mostly Cloudy | 5 mph SW | 0% |
| Sunday Night | 63°F | Mostly Cloudy | 3 mph ENE | 0% |
| Monday | 78°F | Mostly Sunny | 5 mph NNW | 0% |
| Monday Night | 60°F | Mostly Clear | 3 mph ENE | 0% |
| Tuesday | 78°F | Sunny | 2 to 6 mph NNW | 0% |
| Tuesday Night | 61°F | Mostly Clear | 3 mph NNW | 0% |
| Wednesday | 79°F | Sunny | 5 mph SW | 0% |
| Wednesday Night | 63°F | Mostly Clear | 3 mph E | 0% |
| Thursday | 79°F | Sunny | 2 to 6 mph SSE | 0% |
| Thursday Night | 63°F | Partly Cloudy | 5 mph SE | 1% |
| Friday | 75°F | Mostly Sunny | 2 to 7 mph SSE | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Alleghany, CA
Last spring frost
Apr 28
First fall frost
Oct 25
Growing season
178 days
Hardiness zone
8b
Explore more for Alleghany, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Downieville, Ca (6.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.