Horseshoe Lake Weather Forecast
- 46
- 56
Partly Sunny
- 47
- 59
Mostly Cloudy
- 48
- 59
Mostly Cloudy
- 48
- 57
Chance Rain
- 46
- 55
Slight Chance Rain
- 46
- 57
Mostly Sunny
- 46
- 57
Partly Sunny
Today 18 Apr San Juan County
Mostly sunny. Highs in the mid 50s to lower 60s. Light wind.
Tonight 18 Apr San Juan County
Mostly cloudy. Lows in the 40s. Light wind.
Horseshoe Lake Temperature Statistics
April Temperature
Friday Harbor Airport (9.9 miles)
Lowest 15 April, 2026
33.1 °FAverage April
47.7 °FHighest 5 April, 2026
62.1 °F
Climate (2021–Present)
Friday Harbor Airport (9.9 miles)
Average Low 2021–2026
44.5 °FAverage 2021–2026
51.9 °FAverage High 2021–2026
59.7 °F