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.

Overnight
67°F
Partly Cloudy
Partly cloudy, with a low around 67. Southeast wind around 8 mph.

7-day forecast for California

WhenTempForecastWindPrecip
Overnight 67°F Partly Cloudy 8 mph SE 5%
Sunday 84°F Partly Sunny 7 to 12 mph S 8%
Sunday Night 68°F Chance Showers And Thunderstorms 3 to 9 mph SW 34%
Monday 76°F Chance Rain Showers 6 to 13 mph N 28%
Monday Night 64°F Chance Showers And Thunderstorms 13 mph NE 45%
Tuesday 73°F Chance Rain Showers 12 to 18 mph NE 48%
Tuesday Night 61°F Chance Showers And Thunderstorms 14 to 18 mph NE 48%
Wednesday 70°F Chance Rain Showers 15 to 21 mph NE 43%
Wednesday Night 60°F Chance Rain Showers 15 to 20 mph NE 40%
Thursday 70°F Chance Rain Showers 16 to 20 mph NE 38%
Thursday Night 58°F Chance Rain Showers 14 to 18 mph N 37%
Friday 69°F Chance Rain Showers 15 to 18 mph N 34%
Friday Night 58°F Chance Rain Showers 8 to 16 mph N 26%
Saturday 71°F Slight Chance Rain Showers 12 to 15 mph N 19%

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

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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 20, 2026.