Harstine Island Weather Forecast
- 54
- 69
Increasing Clouds
- 53
- 69
Mostly Cloudy
- 54
- 70
Mostly Cloudy
- 56
- 75
Partly Sunny
- 57
- 79
Mostly Sunny
- 57
- 80
Mostly Sunny
Today 18 Jul Olympia and Southern Puget Sound
Partly sunny. Highs in the upper 60s to mid 70s. Southwest wind 10 to 15 Mph. Gusts to 25 Mph in the afternoon.
Tonight 18 Jul Olympia and Southern Puget Sound
Partly cloudy. Lows in the lower to mid 50s. Southwest wind 10 to 15 Mph.
Harstine Island Temperature Statistics
July Temperature
Shelton, Shelton Sanderson Field (11.8 miles)
Lowest 6 July, 2025
45.6 °FAverage July
66.1 °FHighest 13 July, 2025
91.9 °F
Climate (2020–Present)
Shelton, Shelton Sanderson Field (11.8 miles)
Average Low 2020–2025
41.7 °FAverage 2020–2025
51 °FAverage High 2020–2025
61.2 °F