West Pasco, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Pasco, a community in Benton County, Washington.
This Afternoon
54°F
Mostly Sunny
Mostly sunny. High near 54, with temperatures falling to around 52 in the afternoon. East wind around 3 mph.
7-day forecast for West Pasco
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 54°F | Mostly Sunny | 3 mph E | 1% |
| Tonight | 41°F | Slight Chance Rain Showers | 3 mph S | 24% |
| Thursday | 60°F | Sunny | 2 to 6 mph SW | 5% |
| Thursday Night | 37°F | Partly Cloudy then Patchy Fog | 1 to 5 mph S | 0% |
| Friday | 55°F | Mostly Cloudy | 1 to 5 mph S | 13% |
| Friday Night | 39°F | Mostly Cloudy | 1 to 5 mph S | 13% |
| Saturday | 59°F | Mostly Sunny | 1 to 5 mph NW | 0% |
| Saturday Night | 41°F | Mostly Cloudy | 1 to 5 mph W | 3% |
| Sunday | 60°F | Mostly Cloudy | 5 to 8 mph SW | 3% |
| Sunday Night | 39°F | Mostly Cloudy | 1 to 6 mph W | 3% |
| Monday | 56°F | Mostly Cloudy | 2 mph NW | 8% |
| Monday Night | 40°F | Mostly Cloudy then Slight Chance Rain Showers | 2 mph S | 20% |
| Tuesday | 60°F | Slight Chance Rain Showers | 3 mph S | 21% |
| Tuesday Night | 43°F | Slight Chance Rain Showers | 3 mph SW | 18% |
Forecast source: National Weather Service (api.weather.gov) for West Pasco (46.254, -119.183). Updated through the day.
Growing snapshot for West Pasco
Last spring frost
Mar 28
First fall frost
Oct 30
Growing season
216 days
Hardiness zone
7b
More local growing data for West Pasco: nearby ZIP 99336 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Kennewick, Wa (3.6 mi from West Pasco). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.