Grantville Weather Forecast

    • 58
    • 77

    Chance Rain Showers

    • 57
    • 81

    Rain Showers

    • 54
    • 74

    Mostly Sunny

    • 63
    • 80

    Rain Showers Likely

    • 61
    • 80

    Rain Showers

    • 56
    • 76

    Rain Showers Likely

    • 57
    • 76

    Slight Chance Rain Showers

Today 17 Jul Northern St. Lawrence

Sunny. Highs in the upper 70s. Light and variable Winds, becoming west around 10 Mph this afternoon.

Tonight 17 Jul Northern St. Lawrence

Partly cloudy until Midnight, then mostly cloudy with a slight chance of Showers after midnight. Lows in the upper 50s. Light and variable Winds. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grantville Temperature Statistics

July Temperature

Massena, Massena International-Richards Field (6.2 miles)

  • Lowest 5 July, 2026

    52.6 °F

  • Average July

    73.3 °F

  • Highest 1 July, 2026

    91.7 °F

Climate (2021–2026)

Massena, Massena International-Richards Field (6.2 miles)

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  • Average Low 2021–2026

    36.1 °F

  • Average 2021–2026

    46.2 °F

  • Average High 2021–2026

    55.9 °F
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