Frost Island Weather Forecast

    • 30
    • 37

    Rain Showers Likely

    • 28
    • 37

    Chance Rain/Snow

    • 30
    • 37

    Chance Rain/Snow

    • 29
    • 38

    Partly Sunny

    • 33
    • 39

    Mostly Cloudy

    • 34
    • 41

    Slight Chance Rain/Snow

    • 32
    • 41

    Slight Chance Rain/Snow

Today 3 Feb San Juan County

Mostly cloudy. A chance of rain and snow Showers in the Morning, then rain and snow Showers likely late in the morning. A chance of rain and snow Showers in the afternoon. Snow level near sea level. Snow accumulation up to 1 inch. Highs in the 30s. East wind 10 to 20 Mph.

Tonight 3 Feb San Juan County

Mostly cloudy. A chance of rain and snow Showers in the Evening, then rain and snow Showers likely late in the evening. A chance of rain and snow Showers after midnight. Snow level near sea level. Snow accumulation of 1 to 2 Inches. Lows in the 20s to lower 30s. East wind 10 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Frost Island Temperature Statistics

February Temperature

Friday Harbor Airport (8.1 miles)

  • Lowest 1 February, 2025

    33.1 °F

  • Average February

    37 °F

  • Highest 1 February, 2025

    41 °F

Climate (2020–Present)

Friday Harbor Airport (8.1 miles)

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  • Average Low 2020–2025

    44.2 °F

  • Average 2020–2025

    51.4 °F

  • Average High 2020–2025

    59.1 °F
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