Grand Island Weather Forecast

    • 62
    • 82

    Rain Showers Likely

    • 60
    • 69

    Chance Rain Showers

    • 58
    • 71

    Mostly Sunny

    • 63
    • 79

    Mostly Sunny

    • 63
    • 81

    Chance Rain Showers

    • 61
    • 71

    Mostly Cloudy

    • 64
    • 74

    Partly Sunny

Today 31 Jul Alger

Showers with a chance of Thunderstorms. Patchy smoke. Light northwest Winds. Chance of rain 80 percent.

Tonight 31 Jul Alger

Cloudy. Showers with a chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Patchy fog and smoke. Lows in the upper 50s. Light west Winds. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Island Temperature Statistics

July Temperature

Munising - Munising Lakeshore Observation (7.5 miles)

  • Lowest 6 July, 2026

    48 °F

  • Average July

    66.1 °F

  • Highest 14 July, 2026

    91 °F

Climate (2021–2026)

Munising - Munising Lakeshore Observation (7.5 miles)

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  • Average Low 2021–2026

    36.9 °F

  • Average 2021–2026

    44.4 °F

  • Average High 2021–2026

    52 °F
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