Winterhaven, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winterhaven, a community in Yuma County, California.
This Afternoon
78°F
Sunny
Sunny. High near 78, with temperatures falling to around 75 in the afternoon. Northwest wind around 0 mph.
7-day forecast for Winterhaven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Sunny | 0 mph | 0% |
| Tonight | 57°F | Partly Cloudy | 0 to 5 mph NW | 0% |
| Wednesday | 80°F | Sunny | 5 to 10 mph NNW | 0% |
| Wednesday Night | 57°F | Mostly Clear | 0 to 5 mph N | 0% |
| Thursday | 80°F | Sunny | 5 to 10 mph N | 0% |
| Thursday Night | 59°F | Mostly Clear | 5 to 10 mph N | 0% |
| Friday | 83°F | Sunny | 10 to 15 mph N | 0% |
| Friday Night | 61°F | Mostly Clear | 5 to 15 mph N | 0% |
| Saturday | 85°F | Sunny | 10 to 15 mph N | 0% |
| Saturday Night | 61°F | Mostly Clear | 5 to 10 mph N | 1% |
| Sunday | 85°F | Sunny | 5 to 10 mph NNE | 2% |
| Sunday Night | 63°F | Partly Cloudy | 5 mph NNE | 2% |
| Monday | 84°F | Mostly Sunny | 0 to 5 mph NE | 2% |
| Monday Night | 62°F | Mostly Clear | 0 to 5 mph NNE | 1% |
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 Nov 4, 2026.