Porthill Weather Forecast

    • 46
    • 77

    Decreasing Clouds

    • 46
    • 76

    Mostly Sunny

    • 51
    • 83

    Partly Sunny

    • 51
    • 83

    Partly Sunny

    • 49
    • 78

    Chance Rain Showers

    • 44
    • 70

    Chance Rain Showers

    • 41
    • 64

    Chance Rain Showers

Today 10 May Northern Panhandle

Mostly cloudy. Highs in the 70s.

Tonight 10 May Northern Panhandle

Mostly cloudy in the evening then clearing. Lows in the 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Porthill Temperature Statistics

May Temperature

Boundary County Airport (20.5 miles)

  • Lowest 1 May, 2026

    39.2 °F

  • Average May

    60.4 °F

  • Highest 3 May, 2026

    75.2 °F

Climate (2021–Present)

Boundary County Airport (20.5 miles)

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  • Average Low 2021–2026

    37.9 °F

  • Average 2021–2026

    47.4 °F

  • Average High 2021–2026

    56.8 °F
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