Portage Lake Weather Forecast

    • 47
    • 73

    Mostly Sunny

    • 50
    • 74

    Mostly Sunny

    • 58
    • 75

    Partly Sunny

    • 64
    • 74

    Rain Showers Likely

    • 53
    • 74

    Rain Showers Likely

    • 44
    • 65

    Chance Rain Showers

    • 46
    • 65

    Chance Rain Showers

Today 27 Sep St. Joseph

Sunny. Near steady temperature in the lower 70s. North Winds around 5 Mph.

Tonight 27 Sep St. Joseph

Mostly clear. Lows in the upper 40s. North Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portage Lake Temperature Statistics

September Temperature

Haines Memorial Airport (7.5 miles)

  • Lowest 14 September, 2026

    46.4 °F

  • Average September

    68.5 °F

  • Highest 2 September, 2026

    93.2 °F

Climate (2021–2026)

Haines Memorial Airport (7.5 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    60.3 °F
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