Hyannis Weather Forecast

    • 18
    • 40

    Chance Snow

    • 11
    • 28

    Chance Snow

    • 25
    • 43

    Chance Snow

    • 22
    • 47

    Partly Sunny

    • 23
    • 51

    Mostly Cloudy

    • 21
    • 47

    Mostly Cloudy

    • 20
    • 43

    Partly Sunny

Today 29 Jan Grant

Mostly cloudy. Near steady temperature in the upper 30s. Northwest Winds 10 to 20 Mph.

Tonight 29 Jan Grant

Mostly cloudy. A slight chance of snow in the Evening, then a chance of snow after midnight. Little or no snow accumulation. Lows around 18. Northwest Winds around 10 Mph. Chance of precipitation 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hyannis Temperature Statistics

January Temperature

Alliance, Alliance Municipal Airport (53.4 miles)

  • Lowest 24 January, 2026

    -25.3 °F

  • Average January

    28.2 °F

  • Highest 4 January, 2026

    64.7 °F

Climate (2021–Present)

Alliance, Alliance Municipal Airport (53.4 miles)

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  • Average Low 2021–2026

    33.2 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    64 °F
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