Pasco, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pasco, a city in Benton County, Washington.
This Afternoon
82°F
Sunny
Sunny, with a high near 82. East wind around 2 mph.
7-day forecast for Pasco
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Sunny | 2 mph E | 0% |
| Tonight | 52°F | Mostly Clear | 2 mph NE | 0% |
| Sunday | 86°F | Sunny | 2 mph N | 0% |
| Sunday Night | 53°F | Mostly Clear | 1 mph N | 0% |
| Monday | 87°F | Sunny | 0 mph | 0% |
| Monday Night | 54°F | Partly Cloudy | 0 mph | 0% |
| Tuesday | 83°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Tuesday Night | 51°F | Partly Cloudy | 5 mph SW | 0% |
| Wednesday | 78°F | Mostly Sunny | 5 mph SW | 0% |
| Wednesday Night | 48°F | Partly Cloudy | 1 to 5 mph SW | 1% |
| Thursday | 75°F | Mostly Sunny | 1 to 5 mph NW | 3% |
| Thursday Night | 48°F | Partly Cloudy | 5 mph NW | 4% |
| Friday | 73°F | Mostly Sunny | 2 to 7 mph W | 6% |
| Friday Night | 46°F | Mostly Cloudy | 3 to 7 mph W | 5% |
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.