Griswold Weather Forecast

    • 50
    • 71

    Chance Rain Showers

    • 54
    • 77

    Mostly Sunny

    • 57
    • 79

    Partly Sunny

    • 67
    • 78

    Chance Rain Showers

    • 56
    • 82

    Partly Sunny

    • 52
    • 73

    Mostly Sunny

Today 6 Sep Northern New London

Partly sunny with a 20 percent chance of Showers. Highs around 70. North Winds around 5 Mph.

Tonight 6 Sep Northern New London

Mostly clear. Lows in the lower 50s. Light and variable Winds, becoming northwest around 5 Mph after midnight.

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Griswold Temperature Statistics

September Temperature

Westerly, Westerly State Airport (16.8 miles)

  • Lowest 2 September, 2026

    60.1 °F

  • Average September

    69.5 °F

  • Highest 4 September, 2026

    82 °F

Climate (2021–2026)

Westerly, Westerly State Airport (16.8 miles)

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  • Average Low 2021–2026

    44.3 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    60.4 °F
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