Grindstone Air Harbor Airport Weather Forecast

    • 56
    • 72

    Mostly Cloudy

    • 53
    • 65

    Partly Sunny

    • 54
    • 70

    Slight Chance Rain Showers

    • 59
    • 78

    Rain Showers Likely

    • 58
    • 74

    Rain Showers Likely

    • 57
    • 73

    Chance Rain Showers

Today 18 Sep Huron

Mostly Sunny, then becoming partly cloudy early in the Afternoon, then becoming mostly cloudy. A slight chance of Showers early in the afternoon. A slight chance of Showers and Thunderstorms in the late afternoon. Highs in the mid 70s. Temperatures falling into the in the upper 60s in the afternoon. Northwest Winds 5 to 10 Mph, becoming northeast 10 to 15 Mph in the late afternoon. Chance of rain 20 percent.

Tonight 18 Sep Huron

Mostly cloudy. Lows in the mid 50s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grindstone Air Harbor Airport Temperature Statistics

September Temperature

Port Hope (6.2 miles)

  • Lowest 8 September, 2025

    43 °F
  • Average September

    61.3 °F
  • Highest 3 September, 2025

    77 °F

Climate (2020–Present)

Port Hope (6.2 miles)

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  • Average Low 2020–2025

    43.4 °F
  • Average 2020–2025

    49.8 °F
  • Average High 2020–2025

    56.2 °F
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