Ilwaco, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ilwaco, a city in Pacific County, Washington.
This Afternoon
63°F
Mostly Sunny
Mostly sunny, with a high near 63. North northwest wind 6 to 10 mph.
7-day forecast for Ilwaco
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Mostly Sunny | 6 to 10 mph NNW | 0% |
| Tonight | 56°F | Partly Cloudy | 7 to 10 mph N | 0% |
| Sunday | 63°F | Partly Sunny | 7 to 15 mph NNW | 0% |
| Sunday Night | 56°F | Mostly Cloudy | 8 to 15 mph NNW | 0% |
| Monday | 65°F | Mostly Cloudy | 6 to 13 mph NNW | 0% |
| Monday Night | 57°F | Mostly Cloudy | 8 to 13 mph NNW | 0% |
| Tuesday | 63°F | Partly Sunny | 9 mph NNW | 0% |
| Tuesday Night | 55°F | Mostly Cloudy | 2 to 9 mph WSW | 14% |
| Wednesday | 64°F | Partly Sunny | 3 to 8 mph SW | 14% |
| Wednesday Night | 54°F | Mostly Cloudy | 5 to 8 mph N | 9% |
| Thursday | 64°F | Mostly Cloudy then Slight Chance Light Rain | 5 to 15 mph N | 15% |
| Thursday Night | 55°F | Slight Chance Light Rain | 8 to 15 mph N | 22% |
| Friday | 63°F | Slight Chance Light Rain | 8 to 16 mph NNW | 22% |
| Friday Night | 53°F | Partly Cloudy | 7 to 16 mph NNW | 12% |
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.