Portage Lake Weather Forecast

    • 67
    • 84

    Rain Showers Likely

    • 64
    • 83

    Rain Showers Likely

    • 63
    • 81

    Chance Thunderstorms

    • 61
    • 81

    Chance Thunderstorms

    • 56
    • 77

    Slight Chance Thunderstorms

    • 55
    • 77

    Chance Rain Showers

Today 9 Aug St. Joseph

Patchy fog this morning. Sunny this Morning, then partly cloudy with a chance of Showers and Thunderstorms this afternoon. Highs in the mid 80s. South Winds 5 to 10 Mph. Gusts up to 20 Mph this afternoon. Chance of rain 50 percent.

Tonight 9 Aug St. Joseph

Mostly cloudy with a chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Some Thunderstorms may produce heavy rainfall. Humid with Lows in the upper 60s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 60 percent.

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Portage Lake Temperature Statistics

August Temperature

Haines Memorial Airport (7.5 miles)

  • Lowest 3 August, 2026

    57.2 °F

  • Average August

    71 °F

  • Highest 5 August, 2026

    82.4 °F

Climate (2021–2026)

Haines Memorial Airport (7.5 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    60.4 °F
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