Startup, WA Weather & Growing Conditions
Today
70°F
Mostly Sunny
Mostly sunny. High near 70, with temperatures falling to around 68 in the afternoon. Northwest wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Mostly Sunny | 1 mph NW | 0% |
| Tonight | 55°F | Mostly Clear | 1 mph SSW | 0% |
| Sunday | 71°F | Sunny | 1 mph WNW | 0% |
| Sunday Night | 54°F | Mostly Clear | 0 mph | 0% |
| Monday | 68°F | Mostly Sunny | 1 mph NW | 0% |
| Monday Night | 53°F | Partly Cloudy | 1 mph NW | 0% |
| Tuesday | 64°F | Partly Sunny | 1 mph NNW | 0% |
| Tuesday Night | 51°F | Mostly Cloudy | 1 mph NE | 11% |
| Wednesday | 64°F | Partly Sunny then Slight Chance Light Rain | 1 mph NNW | 15% |
| Wednesday Night | 52°F | Slight Chance Light Rain | 1 mph NNE | 15% |
| Thursday | 62°F | Mostly Cloudy then Slight Chance Light Rain | 1 mph N | 19% |
| Thursday Night | 50°F | Slight Chance Light Rain | 1 mph N | 20% |
| Friday | 61°F | Slight Chance Light Rain | 1 mph N | 20% |
| Friday Night | 48°F | Slight Chance Light Rain | 2 mph NE | 18% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Startup, WA
Last spring frost
Apr 15
First fall frost
Oct 25
Growing season
192 days
Hardiness zone
8b
Explore more for Startup, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Startup 1 E, Wa (3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.