Deer Park, WA Weather & Growing Conditions
This Afternoon
77°F
Mostly Sunny
Mostly sunny, with a high near 77. Southwest wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Mostly Sunny | 3 mph SW | 0% |
| Tonight | 49°F | Mostly Clear | 0 mph | 0% |
| Sunday | 80°F | Sunny | 0 to 3 mph NW | 0% |
| Sunday Night | 49°F | Mostly Clear | 2 mph E | 0% |
| Monday | 81°F | Sunny | 3 mph E | 0% |
| Monday Night | 51°F | Partly Cloudy | 1 mph NE | 0% |
| Tuesday | 79°F | Mostly Sunny | 0 to 5 mph SE | 0% |
| Tuesday Night | 50°F | Partly Cloudy | 3 mph S | 1% |
| Wednesday | 71°F | Mostly Sunny | 1 to 7 mph S | 1% |
| Wednesday Night | 47°F | Partly Cloudy | 0 to 6 mph S | 3% |
| Thursday | 69°F | Partly Sunny | 0 to 3 mph S | 7% |
| Thursday Night | 47°F | Mostly Cloudy | 2 mph N | 13% |
| Friday | 67°F | Partly Sunny then Slight Chance Rain Showers | 1 to 5 mph SE | 18% |
| Friday Night | 44°F | Slight Chance Rain Showers | 3 mph SW | 19% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Deer Park, WA
Last spring frost
May 22
First fall frost
Sep 14
Growing season
112 days
Hardiness zone
6b
Explore more for Deer Park, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Deer Park Ap, Wa (8.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.