Marthas Bay Weather Forecast
- 54
- 66
Decreasing Clouds
- 54
- 65
Partly Sunny
- 54
- 65
Partly Sunny
- 54
- 65
Partly Sunny
- 55
- 65
Chance Rain Showers
- 55
- 64
Chance Rain Showers
Today 9 Sep Lowlands of Western Skagit and Northwestern Snohomish Counties
Mostly cloudy until late afternoon then becoming mostly sunny. Highs in the mid 60s to lower 70s. Light wind becoming northwest to 10 Mph in the afternoon.
Tonight 9 Sep Lowlands of Western Skagit and Northwestern Snohomish Counties
Partly cloudy. Lows in the lower to mid 50s. West wind to 10 Mph in the evening becoming light.
Marthas Bay Temperature Statistics
September Temperature
Whidbey Island Naval Air Station - Ault Field (6.2 miles)
Lowest 3 September, 2025
52 °FAverage September
56.7 °FHighest 7 September, 2025
63 °F
Climate (2020–Present)
Whidbey Island Naval Air Station - Ault Field (6.2 miles)
Average Low 2020–2025
44.6 °FAverage 2020–2025
50.2 °FAverage High 2020–2025
56.1 °F