Barstow, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Barstow, a community in Ferry County, Washington.
Today
80°F
Sunny
Sunny. High near 80, with temperatures falling to around 78 in the afternoon. Southeast wind 0 to 3 mph.
7-day forecast for Barstow
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Sunny | 0 to 3 mph SE | 0% |
| Tonight | 52°F | Partly Cloudy | 1 mph NE | 0% |
| Sunday | 80°F | Sunny | 0 to 5 mph SE | 0% |
| Sunday Night | 52°F | Mostly Clear | 2 mph S | 0% |
| Monday | 81°F | Sunny | 0 to 5 mph SE | 0% |
| Monday Night | 52°F | Partly Cloudy | 0 to 5 mph W | 0% |
| Tuesday | 79°F | Mostly Sunny | 0 to 6 mph SE | 1% |
| Tuesday Night | 52°F | Mostly Cloudy | 0 to 6 mph SW | 1% |
| Wednesday | 75°F | Mostly Sunny | 0 to 7 mph SE | 1% |
| Wednesday Night | 50°F | Mostly Cloudy | 0 to 7 mph SW | 2% |
| Thursday | 73°F | Partly Sunny | 0 to 3 mph E | 4% |
| Thursday Night | 50°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph W | 16% |
| Friday | 70°F | Slight Chance Rain Showers | 3 mph N | 24% |
| Friday Night | 47°F | Slight Chance Rain Showers | 6 mph NW | 24% |
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 Sep 19, 2026.