Arrowhead Lake Weather Forecast
- 49
- 56
Chance Rain Showers
- 49
- 62
Mostly Sunny
- 48
- 60
Mostly Sunny
- 44
- 56
Partly Sunny
- 45
- 56
Partly Sunny
- 45
- 58
Mostly Sunny
Today 22 Jul Cascades of Whatcom and Skagit Counties
Mostly sunny. A slight chance of Showers in the morning. A slight chance of snow Showers until late afternoon. A slight chance of Thunderstorms in the afternoon. Areas of smoke early in the afternoon. Snow level near 10000 feet.
Tonight 22 Jul Cascades of Whatcom and Skagit Counties
Mostly clear. Freezing level near 12500 feet.
Arrowhead Lake Temperature Statistics
July Temperature
Arlington Municipal Airport (44.1 miles)
Lowest 4 July, 2025
46 °FAverage July
64.9 °FHighest 16 July, 2025
91 °F
Climate (2020–Present)
Arlington Municipal Airport (44.1 miles)
Average Low 2020–2025
42.3 °FAverage 2020–2025
50.5 °FAverage High 2020–2025
59.7 °F