Winterhaven, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winterhaven, a community in Yuma County, California.
Overnight
73°F
Mostly Clear
Mostly clear, with a low around 73. Northwest wind around 5 mph.
7-day forecast for Winterhaven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 73°F | Mostly Clear | 5 mph NW | 0% |
| Saturday | 103°F | Sunny | 0 to 5 mph WNW | 0% |
| Saturday Night | 73°F | Mostly Clear | 0 to 5 mph S | 0% |
| Sunday | 102°F | Sunny | 0 to 10 mph ESE | 0% |
| Sunday Night | 77°F | Partly Cloudy | 5 to 10 mph ESE | 1% |
| Monday | 101°F | Mostly Sunny | 0 to 10 mph SE | 1% |
| Monday Night | 73°F | Mostly Clear | 0 to 5 mph WSW | 0% |
| Tuesday | 101°F | Sunny | 0 to 5 mph SW | 0% |
| Tuesday Night | 75°F | Clear | 0 to 5 mph SW | 0% |
| Wednesday | 103°F | Sunny | 0 to 5 mph ESE | 1% |
| Wednesday Night | 79°F | Mostly Clear | 0 to 5 mph SSE | 3% |
| Thursday | 104°F | Sunny | 0 to 5 mph ESE | 8% |
| Thursday Night | 81°F | Mostly Clear then Slight Chance Rain Showers | 0 to 5 mph E | 15% |
| Friday | 105°F | Slight Chance Rain Showers then Sunny | 5 to 10 mph ESE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Winterhaven (32.737, -114.638). Updated through the day.
Growing snapshot for Winterhaven
Last spring frost
Jan 8
First fall frost
Dec 28
Growing season
362 days
Hardiness zone
10a
More local growing data for Winterhaven: nearby ZIP 85364 weather · frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Yuma Quartermaster Depot, Az (2.6 mi from Winterhaven). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.