Valley, WA Weather & Growing Conditions
Overnight
46°F
Mostly Clear
Mostly clear. Low around 46, with temperatures rising to around 48 overnight. North wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Mostly Clear | 3 mph N | 0% |
| Tuesday | 86°F | Sunny | 3 mph N | 0% |
| Tuesday Night | 50°F | Smoke | 2 mph N | 0% |
| Wednesday | 91°F | Smoke | 1 to 6 mph S | 0% |
| Wednesday Night | 53°F | Smoke then Mostly Clear | 0 to 6 mph SW | 0% |
| Thursday | 95°F | Sunny | 0 to 7 mph SW | 0% |
| Thursday Night | 56°F | Mostly Clear | 0 to 7 mph SW | 0% |
| Friday | 94°F | Sunny | 0 to 9 mph SW | 0% |
| Friday Night | 55°F | Mostly Clear | 0 to 9 mph W | 0% |
| Saturday | 91°F | Sunny | 0 to 8 mph SW | 0% |
| Saturday Night | 54°F | Mostly Clear | 0 to 8 mph SW | 0% |
| Sunday | 88°F | Sunny | 0 to 7 mph S | 0% |
| Sunday Night | 52°F | Mostly Clear | 0 to 7 mph W | 0% |
| Monday | 87°F | Sunny | 0 to 7 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Valley, WA
Last spring frost
May 16
First fall frost
Sep 15
Growing season
120 days
Hardiness zone
6b
Explore more for Valley, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Chewelah, Wa (9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.