Ilwaco, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ilwaco, a city in Pacific County, Washington.
Tonight
48°F
Mostly Clear
Mostly clear, with a low around 48. South southeast wind around 6 mph.
7-day forecast for Ilwaco
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Mostly Clear | 6 mph SSE | 3% |
| Wednesday | 57°F | Mostly Cloudy then Light Rain | 7 to 18 mph SSE | 97% |
| Wednesday Night | 52°F | Light Rain Likely | 5 to 20 mph SW | 60% |
| Thursday | 57°F | Slight Chance Light Rain then Partly Sunny | 6 to 10 mph SSW | 18% |
| Thursday Night | 52°F | Light Rain | 8 to 14 mph S | 83% |
| Friday | 58°F | Light Rain | 14 to 24 mph S | 87% |
| Friday Night | 51°F | Light Rain | 9 to 16 mph SSE | 75% |
| Saturday | 62°F | Light Rain Likely | 9 to 24 mph SSE | 61% |
| Saturday Night | 53°F | Showers And Thunderstorms | 22 to 29 mph S | 88% |
| Sunday | 58°F | Light Rain Likely | 6 to 22 mph SW | 59% |
| Sunday Night | 50°F | Chance Light Rain | 5 to 8 mph SSE | 31% |
| Monday | 58°F | Light Rain Likely | 8 to 20 mph SSE | 57% |
| Monday Night | 52°F | Light Rain | 20 to 25 mph S | 75% |
| Tuesday | 59°F | Light Rain | 22 to 25 mph S | 75% |
Forecast source: National Weather Service (api.weather.gov) for Ilwaco (46.313, -124.027). Updated through the day.
Growing snapshot for Ilwaco
Last spring frost
Apr 6
First fall frost
Oct 26
Growing season
200 days
Hardiness zone
9a
More local growing data for Ilwaco: nearby ZIP 98644 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Bay Center
Chinook
Deep River
Grays River
Lebam
Long Beach
Naselle
Ocean Park
Raymond
South Bend
Tokeland
Willapa
Climate data from the nearest NOAA station, Long Beach Exp Stn, Wa (3.4 mi from Ilwaco). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.