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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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.