Barstow, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Barstow, a community in Ferry County, Washington.
Today
87°F
Sunny
Sunny, with a high near 87. Southwest wind around 2 mph.
7-day forecast for Barstow
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Sunny | 2 mph SW | 0% |
| Tonight | 54°F | Partly Cloudy then Patchy Smoke | 2 mph NW | 0% |
| Wednesday | 91°F | Patchy Smoke | 0 to 7 mph SE | 0% |
| Wednesday Night | 57°F | Smoke then Mostly Clear | 0 to 7 mph SW | 0% |
| Thursday | 96°F | Sunny | 0 to 8 mph SE | 0% |
| Thursday Night | 60°F | Mostly Clear | 0 to 8 mph S | 0% |
| Friday | 96°F | Sunny | 0 to 9 mph S | 0% |
| Friday Night | 59°F | Mostly Clear | 2 to 9 mph W | 0% |
| Saturday | 93°F | Sunny | 0 to 8 mph SW | 0% |
| Saturday Night | 59°F | Partly Cloudy | 2 to 8 mph W | 0% |
| Sunday | 90°F | Sunny | 1 to 8 mph W | 1% |
| Sunday Night | 57°F | Partly Cloudy | 1 to 8 mph W | 1% |
| Monday | 88°F | Sunny | 1 to 8 mph E | 1% |
| Monday Night | 56°F | Partly Cloudy | 1 to 8 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Barstow (48.778, -118.133). Updated through the day.
Growing snapshot for Barstow
Last spring frost
May 2
First fall frost
Oct 2
Growing season
153 days
Hardiness zone
6b
More local growing data for Barstow: nearby ZIP 99141 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Colville, Wa (14.8 mi from Barstow). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.