Ilwaco Harbor Weather Forecast
- 58
- 64
Increasing Clouds
- 59
- 64
Mostly Cloudy
- 57
- 64
Mostly Cloudy
- 57
- 65
Mostly Cloudy
- 59
- 67
Chance Rain
- 58
- 67
Slight Chance Rain
- 57
- 67
Mostly Cloudy
Today 17 Aug South Washington Coast
Sunny. Highs around 70. Northwest wind 5 to 10 Mph.
Tonight 17 Aug South Washington Coast
Mostly cloudy. Patchy fog after midnight. Lows in the mid 50s. Northwest wind 5 to 10 Mph.
Ilwaco Harbor Temperature Statistics
August Temperature
Astoria, Astoria Regional Airport (12.4 miles)
Lowest 3 August, 2026
48.7 °FAverage August
63.4 °FHighest 5 August, 2026
82.7 °F
Climate (2021–2026)
Astoria, Astoria Regional Airport (12.4 miles)
Average Low 2021–2026
46 °FAverage 2021–2026
52.7 °FAverage High 2021–2026
59.9 °F