Griswold Weather Forecast

    • 47
    • 65

    Increasing Clouds

    • 45
    • 59

    Rain Likely

    • 44
    • 53

    Rain

    • 46
    • 59

    Chance Rain Showers

    • 47
    • 63

    Chance Rain Showers

    • 49
    • 68

    Partly Sunny

Today 20 May Northern New London

Mostly sunny late this Morning, then becoming mostly cloudy. Highs in the mid 60s. North Winds 10 to 15 Mph.

Tonight 20 May Northern New London

Mostly cloudy. A slight chance of Showers in the evening. Lows in the upper 40s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Griswold Temperature Statistics

May Temperature

Westerly, Westerly State Airport (16.8 miles)

  • Lowest 1 May, 2025

    39.7 °F
  • Average May

    59.9 °F
  • Highest 11 May, 2025

    75.7 °F

Climate (2020–Present)

Westerly, Westerly State Airport (16.8 miles)

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  • Average Low 2020–2025

    44.6 °F
  • Average 2020–2025

    52.7 °F
  • Average High 2020–2025

    60.5 °F
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