Kupreanof Weather Forecast

    • 52
    • 64

    Partly Sunny

    • 54
    • 66

    Mostly Cloudy

    • 54
    • 66

    Slight Chance Rain Showers

    • 54
    • 67

    Mostly Sunny

    • 56
    • 71

    Mostly Sunny

    • 55
    • 70

    Partly Sunny

Today 9 Aug Petersburg Borough

Mostly cloudy. Highs in the mid 60s. Light Winds.

Tonight 9 Aug Petersburg Borough

Partly cloudy. Lows in the lower 50s. Light Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Kupreanof Temperature Statistics

August Temperature

Petersburg (1.2 miles)

  • Lowest 4 August, 2026

    50 °F

  • Average August

    56.3 °F

  • Highest 3 August, 2026

    64 °F

Climate (2021–2026)

Petersburg (1.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    38.1 °F

  • Average 2021–2026

    43.4 °F

  • Average High 2021–2026

    48.8 °F
Get WillyWeather+ to remove ads