Sis Lake Weather Forecast

    • 54
    • 79

    Mostly Sunny

    • 64
    • 80

    Partly Sunny

    • 67
    • 88

    Chance Thunderstorms

    • 63
    • 87

    Rain Showers Likely

    • 56
    • 83

    Mostly Sunny

    • 57
    • 83

    Mostly Sunny

Today 24 Jul Newaygo

Mostly sunny. Highs in the upper 70s. Light Winds becoming southwest 5 to 10 Mph with Gusts to around 20 Mph in the afternoon.

Tonight 24 Jul Newaygo

Mostly clear. Lows in the mid 50s. Southwest Winds around 10 Mph with Gusts to around 20 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sis Lake Temperature Statistics

July Temperature

Big Rapids, Roben-Hood Airport (17.4 miles)

  • Lowest 19 July, 2026

    51.8 °F

  • Average July

    73.8 °F

  • Highest 14 July, 2026

    96.8 °F

Climate (2021–2026)

Big Rapids, Roben-Hood Airport (17.4 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    47.9 °F

  • Average High 2021–2026

    57.2 °F
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