Altoona, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Altoona, a community in Wahkiakum County, Washington.
Overnight
43°F
Mostly Clear
Mostly clear, with a low around 43. East southeast wind around 7 mph.
7-day forecast for Altoona
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Mostly Clear | 7 mph ESE | 2% |
| Wednesday | 54°F | Mostly Cloudy then Light Rain | 3 to 8 mph SE | 99% |
| Wednesday Night | 47°F | Light Rain | 5 to 12 mph SW | 76% |
| Thursday | 54°F | Partly Sunny | 5 mph S | 14% |
| Thursday Night | 47°F | Light Rain Likely | 2 to 9 mph SE | 67% |
| Friday | 53°F | Light Rain | 5 to 12 mph SE | 81% |
| Friday Night | 50°F | Light Rain Likely | 5 to 12 mph SE | 71% |
| Saturday | 59°F | Mostly Cloudy then Light Rain Likely | 6 to 10 mph SE | 66% |
| Saturday Night | 51°F | Light Rain | 8 to 23 mph S | 86% |
| Sunday | 57°F | Light Rain Likely | 2 to 14 mph SW | 62% |
| Sunday Night | 47°F | Slight Chance Light Rain | 2 to 7 mph SE | 15% |
| Monday | 57°F | Chance Light Rain | 7 mph ESE | 41% |
| Monday Night | 50°F | Light Rain Likely | 6 to 18 mph SE | 57% |
| Tuesday | 58°F | Light Rain Likely | 8 to 15 mph SSE | 57% |
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 Nov 4, 2026.