Ilwaco, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ilwaco, a city in Pacific County, Washington.
Today
63°F
Partly Sunny
Partly sunny. High near 63, with temperatures falling to around 61 in the afternoon. North wind 1 to 10 mph.
7-day forecast for Ilwaco
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 63°F | Partly Sunny | 1 to 10 mph N | 0% |
| Tonight | 56°F | Partly Cloudy | 9 mph N | 0% |
| Sunday | 63°F | Partly Sunny | 7 to 15 mph N | 0% |
| Sunday Night | 57°F | Partly Cloudy | 8 to 15 mph NNW | 0% |
| Monday | 64°F | Partly Sunny | 6 to 14 mph NNW | 0% |
| Monday Night | 57°F | Mostly Cloudy | 9 to 14 mph NNW | 0% |
| Tuesday | 63°F | Partly Sunny | 7 to 12 mph NNW | 0% |
| Tuesday Night | 54°F | Mostly Cloudy | 2 to 12 mph NNW | 6% |
| Wednesday | 64°F | Partly Sunny | 2 to 8 mph NNW | 6% |
| Wednesday Night | 54°F | Mostly Cloudy | 8 mph NNW | 6% |
| Thursday | 64°F | Mostly Cloudy then Slight Chance Light Rain | 6 to 16 mph N | 16% |
| Thursday Night | 54°F | Slight Chance Light Rain | 9 to 16 mph NNW | 21% |
| Friday | 64°F | Mostly Sunny | 8 to 15 mph NNW | 9% |
| Friday Night | 53°F | Partly Cloudy | 7 to 15 mph NNW | 8% |
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 Sep 19, 2026.