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Whitewater, CA Weather & Growing Conditions

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

This Afternoon
91°F
Sunny
Sunny, with a high near 91. West wind around 25 mph, with gusts as high as 40 mph.

7-day forecast for Whitewater

WhenTempForecastWindPrecip
This Afternoon 91°F Sunny 25 mph W 0%
Tonight 69°F Clear 15 to 25 mph W 0%
Saturday 95°F Sunny 10 to 15 mph W 0%
Saturday Night 73°F Mostly Clear 10 to 15 mph W 0%
Sunday 94°F Mostly Sunny 5 to 15 mph SW 0%
Sunday Night 71°F Partly Cloudy 15 to 20 mph W 1%
Monday 89°F Sunny 10 to 20 mph W 1%
Monday Night 68°F Clear 15 to 20 mph W 0%
Tuesday 92°F Sunny 5 to 15 mph SW 1%
Tuesday Night 72°F Clear 5 to 15 mph NW 0%
Wednesday 96°F Sunny 5 to 20 mph NE 2%
Wednesday Night 75°F Mostly Clear 5 to 15 mph N 5%
Thursday 97°F Sunny 10 to 20 mph E 8%
Thursday Night 77°F Mostly Clear 10 to 15 mph W 5%

Forecast source: National Weather Service (api.weather.gov) for Whitewater (33.936, -116.687). Updated through the day.

Growing snapshot for Whitewater

Last spring frost
Feb 25
First fall frost
Dec 15
Growing season
297 days
Hardiness zone
9b

More local growing data for Whitewater: nearby ZIP 92282 weather · frost dates · planting calendar · California frost dates

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Climate data from the nearest NOAA station, Morongo Valley N, Ca (10.2 mi from Whitewater). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.