Ilwaco, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ilwaco, a city in Pacific County, Washington.
Overnight
59°F
Patchy Smoke
Patchy smoke after 3am. Mostly clear. Low around 59, with temperatures rising to around 61 overnight. North wind 8 to 12 mph.
7-day forecast for Ilwaco
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Patchy Smoke | 8 to 12 mph N | 0% |
| Tuesday | 73°F | Patchy Smoke then Sunny | 8 to 16 mph N | 0% |
| Tuesday Night | 60°F | Mostly Clear | 6 to 15 mph N | 0% |
| Wednesday | 73°F | Patchy Smoke | 6 to 14 mph NNW | 0% |
| Wednesday Night | 58°F | Partly Cloudy | 2 to 13 mph NNW | 0% |
| Thursday | 67°F | Mostly Sunny | 2 to 8 mph NW | 0% |
| Thursday Night | 58°F | Mostly Cloudy | 2 to 8 mph NW | 0% |
| Friday | 68°F | Mostly Sunny | 2 to 12 mph NNW | 0% |
| Friday Night | 57°F | Partly Cloudy | 8 to 12 mph NNW | 0% |
| Saturday | 67°F | Mostly Sunny | 8 to 15 mph NNW | 0% |
| Saturday Night | 57°F | Mostly Cloudy | 9 to 15 mph NNW | 1% |
| Sunday | 66°F | Partly Sunny | 8 to 14 mph NW | 1% |
| Sunday Night | 57°F | Mostly Cloudy | 8 to 14 mph NNW | 2% |
| Monday | 66°F | Partly Sunny | 7 to 12 mph NNW | 2% |
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 Aug 4, 2026.