Gustavus Weather Forecast

    • 40
    • 48

    Rain

    • 39
    • 50

    Rain Showers Likely

    • 37
    • 49

    Rain Showers Likely

    • 39
    • 52

    Mostly Cloudy

    • 41
    • 58

    Partly Sunny

    • 41
    • 52

    Rain Showers Likely

    • 40
    • 50

    Rain Showers Likely

Today 21 May Glacier Bay

Cloudy. Chance of rain. Highs in the lower 50s. Southeast Winds 10 to 15 Mph shifting to the southwest in the afternoon.

Tonight 21 May Glacier Bay

Cloudy. Chance of rain Showers in the evening. Rain Showers likely late. Lows around 40. Southwest Winds 10 to 15 Mph shifting to the southeast late.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gustavus Temperature Statistics

May Temperature

Gustavus, Gustavus Airport (1.2 miles)

  • Lowest 8 May, 2026

    35.1 °F

  • Average May

    45.5 °F

  • Highest 12 May, 2026

    57 °F

Climate (2021–Present)

Gustavus, Gustavus Airport (1.2 miles)

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  • Average Low 2021–2026

    38.4 °F

  • Average 2021–2026

    43.8 °F

  • Average High 2021–2026

    48.7 °F
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