Dewey Weather Forecast
- 55
- 67
Increasing Clouds
- 55
- 69
Mostly Cloudy
- 54
- 68
Mostly Cloudy
- 52
- 67
Partly Sunny
- 54
- 69
Mostly Sunny
- 54
- 71
Mostly Sunny
Today 17 Aug Lowlands of Western Skagit and Northwestern Snohomish Counties
Mostly cloudy. A slight chance of rain in the morning. Areas of fog in the morning. Patchy fog late in the morning. Highs in the upper 60s to mid 70s. Light wind.
Tonight 17 Aug Lowlands of Western Skagit and Northwestern Snohomish Counties
Mostly cloudy. Lows in the 50s. Northwest wind to 10 Mph in the evening becoming light.
Dewey Temperature Statistics
August Temperature
Whidbey Island Naval Air Station - Ault Field (5 miles)
Lowest 8 August, 2025
52 °FAverage August
60.5 °FHighest 10 August, 2025
82 °F
Climate (2020–Present)
Whidbey Island Naval Air Station - Ault Field (5 miles)
Average Low 2020–2025
44.6 °FAverage 2020–2025
50.2 °FAverage High 2020–2025
56.2 °F