Pine Grove, WA Weather & Growing Conditions
Tonight
49°F
Mostly Clear
Mostly clear, with a low around 49. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Mostly Clear | 0 mph | 0% |
| Saturday | 77°F | Mostly Sunny | 0 to 3 mph W | 0% |
| Saturday Night | 50°F | Partly Cloudy | 2 mph S | 0% |
| Sunday | 77°F | Sunny | 0 to 3 mph S | 0% |
| Sunday Night | 51°F | Mostly Clear | 0 to 3 mph S | 0% |
| Monday | 77°F | Sunny | 0 to 5 mph S | 0% |
| Monday Night | 50°F | Partly Cloudy | 0 to 3 mph S | 0% |
| Tuesday | 74°F | Mostly Sunny | 0 to 5 mph SE | 1% |
| Tuesday Night | 47°F | Partly Cloudy | 0 to 5 mph S | 1% |
| Wednesday | 69°F | Mostly Sunny | 0 to 5 mph NE | 1% |
| Wednesday Night | 47°F | Mostly Cloudy | 1 to 5 mph SE | 3% |
| Thursday | 71°F | Partly Sunny | 3 mph SE | 8% |
| Thursday Night | 49°F | Mostly Cloudy | 3 mph E | 10% |
| Friday | 68°F | Partly Sunny then Slight Chance Rain Showers | 5 mph S | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Pine Grove, WA
Last spring frost
May 30
First fall frost
Sep 10
Growing season
102 days
Hardiness zone
6a
Explore more for Pine Grove, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Republic, Wa (4.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.