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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

WhenTempForecastWindPrecip
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

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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.