Rail Road Flat, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rail Road Flat, a community in Calaveras County, California.
Tonight
53°F
Clear then Haze
Haze after 5am. Clear, with a low around 53. Northeast wind around 3 mph.
7-day forecast for Rail Road Flat
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Clear then Haze | 3 mph NE | 0% |
| Saturday | 81°F | Sunny | 5 mph SW | 0% |
| Saturday Night | 57°F | Partly Cloudy | 3 mph NNE | 0% |
| Sunday | 81°F | Partly Sunny | 5 mph WSW | 0% |
| Sunday Night | 58°F | Mostly Cloudy | 2 mph NNE | 0% |
| Monday | 81°F | Sunny | 5 mph NNW | 0% |
| Monday Night | 57°F | Mostly Clear | 3 mph NNE | 0% |
| Tuesday | 82°F | Sunny | 1 to 5 mph W | 0% |
| Tuesday Night | 58°F | Clear | 3 mph NNE | 0% |
| Wednesday | 88°F | Sunny | 2 to 6 mph WSW | 0% |
| Wednesday Night | 61°F | Mostly Clear | 3 to 7 mph NE | 0% |
| Thursday | 91°F | Sunny | 2 to 6 mph SSW | 0% |
| Thursday Night | 63°F | Mostly Clear | 3 to 7 mph NE | 0% |
| Friday | 87°F | Sunny | 6 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Rail Road Flat (38.336, -120.550). Updated through the day.
Growing snapshot for Rail Road Flat
Last spring frost
Mar 4
First fall frost
Dec 11
Growing season
285 days
Hardiness zone
9a
More local growing data for Rail Road Flat: nearby ZIP 95232 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Sutter Hill Cdf, Ca (12.2 mi from Rail Road Flat). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.