Altoona, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Altoona, a community in Wahkiakum County, Washington.
This Afternoon
66°F
Mostly Sunny
Mostly sunny, with a high near 66. West wind 1 to 7 mph.
7-day forecast for Altoona
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Mostly Sunny | 1 to 7 mph W | 0% |
| Tonight | 50°F | Partly Cloudy | 3 to 7 mph NW | 0% |
| Sunday | 67°F | Mostly Sunny | 2 to 8 mph WNW | 0% |
| Sunday Night | 51°F | Partly Cloudy | 5 to 8 mph NW | 1% |
| Monday | 65°F | Partly Sunny | 3 to 9 mph NW | 0% |
| Monday Night | 52°F | Mostly Cloudy | 6 to 9 mph NW | 0% |
| Tuesday | 63°F | Partly Sunny | 3 to 10 mph NW | 0% |
| Tuesday Night | 52°F | Partly Cloudy | 2 to 10 mph SW | 10% |
| Wednesday | 64°F | Partly Sunny | 2 to 8 mph SW | 10% |
| Wednesday Night | 50°F | Mostly Cloudy | 3 to 8 mph NNW | 6% |
| Thursday | 63°F | Partly Sunny | 3 to 9 mph NNE | 14% |
| Thursday Night | 51°F | Mostly Cloudy then Slight Chance Light Rain | 5 to 9 mph N | 15% |
| Friday | 62°F | Slight Chance Light Rain | 5 to 12 mph NNW | 19% |
| Friday Night | 50°F | Partly Cloudy | 6 to 12 mph NNW | 14% |
Forecast source: National Weather Service (api.weather.gov) for Altoona (46.270, -123.621). Updated through the day.
Growing snapshot for Altoona
Last spring frost
Apr 24
First fall frost
Oct 20
Growing season
179 days
Hardiness zone
8b
More local growing data for Altoona: 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 Altoona). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.