Harman US

California, MD Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for California, a community in St. Mary's County, Maryland.

Tonight
66°F
Partly Cloudy
Partly cloudy, with a low around 66. Northeast wind 6 to 9 mph.

7-day forecast for California

WhenTempForecastWindPrecip
Tonight 66°F Partly Cloudy 6 to 9 mph NE 10%
Saturday 79°F Partly Sunny 10 mph NE 10%
Saturday Night 68°F Mostly Cloudy 10 mph SE 10%
Sunday 82°F Mostly Sunny 8 to 13 mph S 10%
Sunday Night 69°F Chance Showers And Thunderstorms 7 to 12 mph SW 50%
Monday 77°F Chance Showers And Thunderstorms 8 to 12 mph N 49%
Monday Night 65°F Chance Showers And Thunderstorms 9 to 13 mph NE 49%
Tuesday 72°F Chance Rain Showers 13 to 20 mph NE 54%
Tuesday Night 61°F Chance Rain Showers 15 to 18 mph NE 54%
Wednesday 69°F Chance Rain Showers 15 to 20 mph NE 50%
Wednesday Night 61°F Chance Showers And Thunderstorms 14 to 18 mph NE 50%
Thursday 68°F Chance Showers And Thunderstorms 18 mph NE 40%
Thursday Night 59°F Chance Showers And Thunderstorms 10 to 16 mph N 36%
Friday 70°F Slight Chance Rain Showers 14 mph N 24%

Forecast source: National Weather Service (api.weather.gov) for California (38.298, -76.492). Updated through the day.

Growing snapshot for California

Last spring frost
Mar 22
First fall frost
Nov 26
Growing season
248 days
Hardiness zone
7b

More local growing data for California: nearby ZIP 20619 weather · frost dates · planting calendar · Maryland frost dates

Nearby towns & communities

All Maryland locations ›

Climate data from the nearest NOAA station, Solomons, Md (4.5 mi from California). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.