Siasconset Weather Forecast

    • 41
    • 47

    Rain Showers Likely

    • 41
    • 52

    Chance Thunderstorms

    • 41
    • 48

    Mostly Sunny

    • 42
    • 48

    Mostly Cloudy

    • 43
    • 49

    Mostly Cloudy

    • 45
    • 51

    Slight Chance Rain Showers

Today 22 Apr Nantucket

Partly sunny with a chance of Showers in the Morning, then mostly cloudy with Showers likely in the afternoon. Highs in the upper 40s. South Winds 10 to 15 Mph. Chance of rain 60 percent.

Tonight 22 Apr Nantucket

Cloudy. Patchy fog. A chance of Showers in the evening. Near steady temperature in the lower 40s. Southeast Winds 10 to 15 Mph. Chance of rain 40 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Siasconset Temperature Statistics

April Temperature

Nantucket, Nantucket Memorial Airport (4.3 miles)

  • Lowest 9 April, 2026

    24.1 °F

  • Average April

    45.7 °F

  • Highest 16 April, 2026

    66 °F

Climate (2021–Present)

Nantucket, Nantucket Memorial Airport (4.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    59.1 °F
Get WillyWeather+ to remove ads