Rosalia, WA Weather & Growing Conditions
Tonight
47°F
Mostly Clear
Mostly clear, with a low around 47. West wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Mostly Clear | 1 mph W | 0% |
| Saturday | 77°F | Sunny | 0 to 3 mph SW | 0% |
| Saturday Night | 48°F | Mostly Clear | 1 mph N | 0% |
| Sunday | 80°F | Sunny | 2 mph SE | 0% |
| Sunday Night | 48°F | Clear | 1 mph NE | 0% |
| Monday | 81°F | Sunny | 1 to 5 mph S | 0% |
| Monday Night | 49°F | Partly Cloudy | 0 to 3 mph SW | 0% |
| Tuesday | 77°F | Sunny | 1 to 5 mph S | 0% |
| Tuesday Night | 48°F | Partly Cloudy | 3 mph S | 1% |
| Wednesday | 73°F | Mostly Sunny | 1 to 6 mph S | 1% |
| Wednesday Night | 46°F | Partly Cloudy | 1 to 5 mph S | 1% |
| Thursday | 73°F | Mostly Sunny | 3 mph SW | 3% |
| Thursday Night | 46°F | Mostly Cloudy | 2 mph NE | 8% |
| Friday | 69°F | Partly Sunny then Slight Chance Rain Showers | 1 to 5 mph S | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rosalia, WA
Last spring frost
May 7
First fall frost
Sep 28
Growing season
144 days
Hardiness zone
6b
Explore more for Rosalia, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Rosalia, Wa (2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.