Tunnel Island Weather Forecast
- 51
- 61
Chance Rain
- 53
- 62
Chance Rain
- 52
- 63
Mostly Cloudy
- 55
- 64
Partly Sunny
- 56
- 62
Mostly Cloudy
- 55
- 63
Mostly Cloudy
- 57
- 65
Partly Sunny
Today 3 Sep Grays Harbor County Coast
Showers and a slight chance of Thunderstorms in the Morning, then Showers likely and a chance of Thunderstorms early in the afternoon. A chance of Showers and a slight chance of Thunderstorms late in the afternoon. Rainfall Amounts a tenth to a quarter of an inch Possible, except higher Amounts possible in Thunderstorms. Highs in the upper 50s to mid 60s. Southeast wind 10 to 20 Mph becoming south 10 to 15 Mph in the afternoon.
Tonight 3 Sep Grays Harbor County Coast
Mostly cloudy with a slight chance of rain in the Evening, then partly cloudy after midnight. Lows in the upper 40s to mid 50s. Northeast wind to 10 Mph in the evening becoming light.
Tunnel Island Temperature Statistics
September Temperature
Quillayute, Quillayute State Airport (34.2 miles)
Lowest 1 September, 2026
53.1 °FAverage September
59.2 °FHighest 1 September, 2026
68 °F
Climate (2021–2026)
Quillayute, Quillayute State Airport (34.2 miles)
Average Low 2021–2026
43.6 °FAverage 2021–2026
50.8 °FAverage High 2021–2026
59 °F