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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
77°F
Sunny
Sunny, with a high near 77. West wind around 10 mph, with gusts as high as 20 mph.

7-day forecast for Lake Riverside

WhenTempForecastWindPrecip
This Afternoon 77°F Sunny 10 mph W 2%
Tonight 49°F Mostly Clear 0 to 5 mph N 2%
Saturday 81°F Sunny 0 to 10 mph W 0%
Saturday Night 54°F Mostly Clear 0 to 5 mph NE 0%
Sunday 80°F Mostly Sunny 0 to 10 mph SW 0%
Sunday Night 53°F Partly Cloudy 0 to 5 mph W 1%
Monday 74°F Sunny 0 to 10 mph W 1%
Monday Night 50°F Mostly Clear 0 to 10 mph NW 0%
Tuesday 78°F Sunny 0 to 10 mph NW 1%
Tuesday Night 55°F Clear 0 to 10 mph NE 0%
Wednesday 86°F Sunny 0 to 10 mph E 3%
Wednesday Night 60°F Mostly Clear 0 to 5 mph E 3%
Thursday 87°F Sunny 5 to 10 mph SE 8%
Thursday Night 61°F Mostly Clear 0 to 5 mph E 2%

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
9b

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 Sep 19, 2026.