Rail Road Flat, CA Weather & Growing Conditions
Overnight
63°F
Mostly Cloudy
Mostly cloudy, with a low around 63. East wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Mostly Cloudy | 5 mph E | 0% |
| Sunday | 82°F | Patchy Smoke then Partly Sunny | 1 to 5 mph WSW | 0% |
| Sunday Night | 61°F | Mostly Cloudy | 2 mph N | 2% |
| Monday | 80°F | Partly Sunny | 5 mph W | 0% |
| Monday Night | 59°F | Partly Cloudy | 0 to 3 mph NNE | 1% |
| Tuesday | 81°F | Sunny | 1 to 5 mph WNW | 0% |
| Tuesday Night | 61°F | Clear | 0 to 3 mph NE | 0% |
| Wednesday | 87°F | Sunny | 2 to 6 mph W | 0% |
| Wednesday Night | 64°F | Mostly Clear | 5 mph NNE | 0% |
| Thursday | 91°F | Sunny | 2 to 8 mph SSW | 0% |
| Thursday Night | 65°F | Mostly Clear | 3 to 7 mph NE | 1% |
| Friday | 86°F | Mostly Sunny | 6 mph WSW | 1% |
| Friday Night | 62°F | Mostly Clear | 1 to 5 mph N | 2% |
| Saturday | 82°F | Sunny | 1 to 6 mph SW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rail Road Flat, CA
Last spring frost
Mar 4
First fall frost
Dec 11
Growing season
285 days
Hardiness zone
9a
Explore more for Rail Road Flat, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Sutter Hill Cdf, Ca (11.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.