Gravel Island National Wildlife Refuge Weather Forecast

    • 45
    • 55

    Slight Chance Rain Showers

    • 49
    • 56

    Slight Chance Thunderstorms

    • 45
    • 62

    Mostly Cloudy

    • 49
    • 59

    Chance Thunderstorms

    • 50
    • 62

    Rain Showers Likely

    • 46
    • 63

    Chance Rain Showers

    • 44
    • 56

    Partly Sunny

Today 14 May Door

Sunny. Temperatures in the mid to upper 50s at the lakeshore to the lower 60s well inland. South wind 5 to 10 Mph.

Tonight 14 May Door

Partly cloudy in the evening then becoming cloudy. A chance of Showers after midnight. Lows in the middle 40s. South wind 10 to 15 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gravel Island National Wildlife Refuge Temperature Statistics

May Temperature

Ephraim-Gibraltar Airport (11.2 miles)

  • Lowest 2 May, 2026

    30.2 °F

  • Average May

    43.4 °F

  • Highest 4 May, 2026

    70.9 °F

Climate (2021–Present)

Ephraim-Gibraltar Airport (11.2 miles)

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  • Average Low 2021–2026

    38.8 °F

  • Average 2021–2026

    45.6 °F

  • Average High 2021–2026

    52.7 °F
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