Pasco, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pasco, a city in Benton County, Washington.
Overnight
51°F
Mostly Clear
Mostly clear. Low around 51, with temperatures rising to around 54 overnight. Wind around 0 mph.
7-day forecast for Pasco
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Mostly Clear | 0 mph | 0% |
| Saturday | 82°F | Sunny | 0 mph | 0% |
| Saturday Night | 51°F | Mostly Clear | 1 mph E | 0% |
| Sunday | 84°F | Sunny | 1 mph N | 0% |
| Sunday Night | 52°F | Clear | 0 mph | 0% |
| Monday | 85°F | Sunny | 0 mph | 0% |
| Monday Night | 53°F | Partly Cloudy | 0 to 3 mph S | 0% |
| Tuesday | 82°F | Sunny | 0 to 3 mph SW | 0% |
| Tuesday Night | 51°F | Mostly Clear | 3 mph SW | 0% |
| Wednesday | 78°F | Mostly Sunny | 5 mph SW | 0% |
| Wednesday Night | 49°F | Partly Cloudy | 1 to 5 mph SW | 0% |
| Thursday | 76°F | Mostly Sunny | 3 mph NW | 1% |
| Thursday Night | 49°F | Partly Cloudy | 3 mph W | 5% |
| Friday | 73°F | Mostly Sunny | 2 to 6 mph SW | 8% |
Forecast source: National Weather Service (api.weather.gov) for Pasco (46.266, -119.121). Updated through the day.
Growing snapshot for Pasco
Last spring frost
Mar 28
First fall frost
Oct 30
Growing season
216 days
Hardiness zone
7b
More local growing data for 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 Pasco). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.