Barstow, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Barstow, a community in Ferry County, Washington.
Tonight
37°F
Partly Cloudy
Partly cloudy. Low around 37, with temperatures rising to around 39 overnight. Northwest wind around 1 mph.
7-day forecast for Barstow
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 37°F | Partly Cloudy | 1 mph NW | 1% |
| Wednesday | 53°F | Sunny | 1 mph NE | 2% |
| Wednesday Night | 38°F | Rain Showers Likely | 0 mph | 56% |
| Thursday | 49°F | Rain Showers Likely then Partly Sunny | 1 mph NE | 56% |
| Thursday Night | 36°F | Mostly Cloudy | 0 mph | 13% |
| Friday | 50°F | Mostly Cloudy | 0 to 3 mph SE | 13% |
| Friday Night | 36°F | Slight Chance Rain Showers | 1 mph SE | 16% |
| Saturday | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 1 mph NE | 15% |
| Saturday Night | 38°F | Mostly Cloudy then Slight Chance Rain Showers | 1 mph E | 20% |
| Sunday | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 6 mph S | 20% |
| Sunday Night | 36°F | Mostly Cloudy | 2 mph W | 6% |
| Monday | 49°F | Partly Sunny then Slight Chance Rain Showers | 0 mph | 15% |
| Monday Night | 37°F | Chance Rain Showers | 0 mph | 36% |
| Tuesday | 52°F | Chance Rain Showers | 1 mph NE | 36% |
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 Nov 4, 2026.