Harman US

Rail Road Flat, CA Weather & Growing Conditions

Today
96°F
Sunny
Sunny. High near 96, with temperatures falling to around 94 in the afternoon. Southwest wind around 6 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 96°F Sunny 6 mph SW 0%
Tonight 66°F Clear 3 mph N 0%
Wednesday 96°F Sunny 2 to 6 mph SW 0%
Wednesday Night 66°F Clear 5 mph N 0%
Thursday 97°F Sunny 2 to 6 mph WSW 0%
Thursday Night 67°F Clear 1 to 5 mph N 0%
Friday 97°F Sunny 1 to 6 mph W 0%
Friday Night 68°F Clear 1 to 5 mph N 0%
Saturday 97°F Sunny 2 to 6 mph WSW 0%
Saturday Night 68°F Mostly Clear 0 to 5 mph N 0%
Sunday 96°F Sunny 2 to 6 mph SSW 0%
Sunday Night 66°F Mostly Clear 5 mph N 0%
Monday 91°F Sunny 2 to 7 mph S 0%
Monday Night 64°F Mostly Clear 1 to 5 mph ENE 1%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Rail Road Flat, CA

Last spring frost
May 7
First fall frost
Oct 28
Growing season
169 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, Calaveras Big Trees, Ca (8.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.