Moonstone Beach Weather Forecast

    • 55
    • 73

    Chance Thunderstorms

    • 48
    • 60

    Chance Rain Showers

    • 48
    • 58

    Mostly Cloudy

    • 49
    • 54

    Rain Showers Likely

    • 50
    • 55

    Chance Rain Showers

    • 52
    • 61

    Slight Chance Rain Showers

Today 20 May Washington

Partly sunny. A chance of Showers with a slight chance of Thunderstorms in the afternoon. Highs in the upper 80s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

Tonight 20 May Washington

Partly cloudy. Near steady temperature in the mid 60s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Moonstone Beach Temperature Statistics

May Temperature

Westerly, Westerly State Airport (11.8 miles)

  • Lowest 4 May, 2026

    36 °F

  • Average May

    53.8 °F

  • Highest 17 May, 2026

    77 °F

Climate (2021–Present)

Westerly, Westerly State Airport (11.8 miles)

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  • Average Low 2021–2026

    44.2 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    60.3 °F
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