Rosburg, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rosburg, a community in Wahkiakum County, Washington.
Overnight
50°F
Areas Of Fog
Areas of fog. Mostly cloudy, with a low around 50. North wind around 1 mph.
7-day forecast for Rosburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 50°F | Areas Of Fog | 1 mph N | 0% |
| Saturday | 70°F | Patchy Fog then Partly Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 49°F | Mostly Clear | 3 mph NNW | 0% |
| Sunday | 71°F | Mostly Sunny | 2 to 7 mph NW | 0% |
| Sunday Night | 50°F | Partly Cloudy | 2 to 7 mph NW | 0% |
| Monday | 69°F | Partly Sunny | 2 to 8 mph NW | 0% |
| Monday Night | 52°F | Partly Cloudy | 2 to 8 mph NW | 0% |
| Tuesday | 67°F | Partly Sunny | 2 to 8 mph NW | 0% |
| Tuesday Night | 50°F | Areas Of Fog | 0 to 8 mph NW | 3% |
| Wednesday | 67°F | Areas Of Fog then Partly Sunny | 0 to 6 mph NNW | 4% |
| Wednesday Night | 50°F | Mostly Cloudy then Patchy Fog | 1 to 6 mph NNW | 3% |
| Thursday | 65°F | Partly Sunny | 2 to 8 mph NNW | 13% |
| Thursday Night | 49°F | Slight Chance Light Rain | 3 to 8 mph NNW | 16% |
| Friday | 65°F | Mostly Sunny | 2 to 8 mph NW | 8% |
Forecast source: National Weather Service (api.weather.gov) for Rosburg (46.308, -123.643). Updated through the day.
Growing snapshot for Rosburg
Last spring frost
Apr 24
First fall frost
Oct 20
Growing season
179 days
Hardiness zone
8b
More local growing data for Rosburg: nearby ZIP 98643 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Naselle 2 Ene, Wa (7.3 mi from Rosburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.