Rosburg, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rosburg, a community in Wahkiakum County, Washington.
Overnight
58°F
Patchy Smoke
Patchy smoke. Clear, with a low around 58. North northeast wind around 5 mph.
7-day forecast for Rosburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Patchy Smoke | 5 mph NNE | 0% |
| Tuesday | 87°F | Areas Of Smoke | 3 to 8 mph NNE | 0% |
| Tuesday Night | 59°F | Patchy Smoke | 2 to 7 mph N | 0% |
| Wednesday | 89°F | Patchy Smoke | 2 to 8 mph N | 0% |
| Wednesday Night | 57°F | Mostly Clear | 0 to 8 mph NW | 0% |
| Thursday | 82°F | Sunny | 0 to 7 mph WNW | 0% |
| Thursday Night | 56°F | Partly Cloudy | 1 to 7 mph WNW | 0% |
| Friday | 77°F | Mostly Sunny | 1 to 9 mph WNW | 0% |
| Friday Night | 55°F | Mostly Clear | 3 to 9 mph NW | 0% |
| Saturday | 73°F | Mostly Sunny | 3 to 10 mph NW | 0% |
| Saturday Night | 55°F | Partly Cloudy | 6 to 10 mph NW | 0% |
| Sunday | 70°F | Partly Sunny | 6 to 10 mph WNW | 1% |
| Sunday Night | 55°F | Partly Cloudy | 5 to 10 mph NW | 1% |
| Monday | 71°F | Mostly Sunny | 3 to 9 mph NW | 1% |
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 Aug 4, 2026.