Portage Lake Weather Forecast

    • 40
    • 61

    Rain Showers

    • 34
    • 50

    Rain Showers Likely

    • 36
    • 49

    Mostly Sunny

    • 40
    • 59

    Mostly Cloudy

    • 42
    • 59

    Mostly Cloudy

    • 43
    • 59

    Mostly Cloudy

Today 18 May Houghton

Mostly cloudy. A chance of. Much warmer with Highs in the mid 60s. Temperature falling into the lower 50s this afternoon. West Winds 5 to 10 Mph, becoming north this afternoon.

Tonight 18 May Houghton

Rain Showers likely with a chance of Thunderstorms in the Evening, then rain Showers with a slight chance of Thunderstorms after midnight. Patchy fog. Lows around 40. East Winds 5 to 10 Mph. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portage Lake Temperature Statistics

May Temperature

Houghton County Memorial Airport (6.2 miles)

  • Lowest 8 May, 2026

    28 °F

  • Average May

    45.8 °F

  • Highest 15 May, 2026

    82.9 °F

Climate (2021–Present)

Houghton County Memorial Airport (6.2 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    44.1 °F

  • Average High 2021–2026

    52.1 °F
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