Spring Valley Lake, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Spring Valley Lake, a community in San Bernardino County, California.

Tonight

44°F

Clear

Clear, with a low around 44. Southwest wind 0 to 10 mph, with gusts as high as 20 mph.

7-day forecast for Spring Valley Lake

When	Temp	Forecast	Wind	Precip
Tonight	44°F	Clear	0 to 10 mph SW	0%
Wednesday	67°F	Sunny	0 to 5 mph N	0%
Wednesday Night	45°F	Mostly Clear	0 to 5 mph N	0%
Thursday	69°F	Sunny	0 to 5 mph NE	0%
Thursday Night	47°F	Mostly Clear	0 mph	0%
Friday	71°F	Sunny	0 to 15 mph NE	0%
Friday Night	48°F	Clear	0 to 10 mph NE	0%
Saturday	73°F	Sunny	0 to 15 mph NE	0%
Saturday Night	49°F	Clear	0 to 10 mph E	0%
Sunday	75°F	Sunny	0 to 5 mph NE	0%
Sunday Night	51°F	Partly Cloudy	0 to 5 mph E	0%
Monday	74°F	Mostly Sunny	0 mph	0%
Monday Night	51°F	Partly Cloudy	0 mph	0%
Tuesday	73°F	Mostly Sunny	0 to 5 mph NW	1%

Forecast source: National Weather Service (api.weather.gov) for Spring Valley Lake (34.497, -117.268). Updated through the day.

Growing snapshot for Spring Valley Lake

Last spring frost

Mar 18

First fall frost

Nov 11

Growing season

233 days

Hardiness zone

More local growing data for Spring Valley Lake: nearby ZIP 92395 weather · frost dates · planting calendar · California frost dates

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Climate data from the nearest NOAA station, Victorville, Ca (1.7 mi from Spring Valley Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.