Ilwaco Harbor Weather Forecast
- 48
- 54
Rain
- 49
- 54
Rain
- 50
- 57
Mostly Cloudy
- 51
- 59
Mostly Cloudy
- 51
- 60
Mostly Cloudy
- 52
- 62
Partly Sunny
Today 15 May South Washington Coast
A slight chance of Thunderstorms. Showers. Highs in the upper 50s. Southwest wind 10 to 15 Mph. Chance of rain near 100 percent. Rainfall Amounts a tenth to a quarter of an Inch, except higher Amounts possible in Thunderstorms.
Tonight 15 May South Washington Coast
Mostly cloudy. Lows in the upper 40s. West wind 5 to 10 Mph.
Ilwaco Harbor Temperature Statistics
May Temperature
Astoria, Astoria Regional Airport (12.4 miles)
Lowest 8 May, 2026
45.6 °FAverage May
56.8 °FHighest 3 May, 2026
82.7 °F
Climate (2021–Present)
Astoria, Astoria Regional Airport (12.4 miles)
Average Low 2021–2026
46 °FAverage 2021–2026
52.6 °FAverage High 2021–2026
59.8 °F