Lake Riverside, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Lake Riverside, a community in Riverside County, California.

This Afternoon

65°F

Mostly Sunny

Mostly sunny, with a high near 65. West wind 5 to 10 mph.

7-day forecast for Lake Riverside

When	Temp	Forecast	Wind	Precip
This Afternoon	65°F	Mostly Sunny	5 to 10 mph W	0%
Tonight	45°F	Partly Cloudy then Patchy Fog	0 to 5 mph W	0%
Wednesday	65°F	Patchy Fog then Sunny	0 to 5 mph NW	0%
Wednesday Night	47°F	Mostly Clear	0 to 10 mph E	0%
Thursday	69°F	Sunny	0 to 10 mph N	0%
Thursday Night	49°F	Mostly Clear	0 to 10 mph NE	0%
Friday	71°F	Sunny	0 to 10 mph NE	0%
Friday Night	50°F	Clear	0 to 15 mph NE	0%
Saturday	73°F	Sunny	5 to 15 mph E	0%
Saturday Night	52°F	Clear	5 to 20 mph E	0%
Sunday	73°F	Sunny	5 to 15 mph E	0%
Sunday Night	54°F	Partly Cloudy	5 to 20 mph E	0%
Monday	72°F	Mostly Sunny	0 to 10 mph S	0%
Monday Night	52°F	Partly Cloudy	0 mph	1%

Forecast source: National Weather Service (api.weather.gov) for Lake Riverside (33.519, -116.812). Updated through the day.

Growing snapshot for Lake Riverside

Last spring frost

Apr 29

First fall frost

Nov 18

Growing season

201 days

Hardiness zone

More local growing data for Lake Riverside: nearby ZIP 92536 weather · frost dates · planting calendar · California frost dates

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Climate data from the nearest NOAA station, Palomar Mtn Obsy, Ca (8 mi from Lake Riverside). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.