Rays Lake Weather Forecast

    • 50
    • 90

    Mostly Sunny

    • 53
    • 91

    Mostly Sunny

    • 55
    • 92

    Mostly Sunny

    • 57
    • 89

    Mostly Cloudy

    • 53
    • 83

    Chance Rain Showers

    • 52
    • 82

    Chance Rain Showers

Today 21 Aug Arco/Mud Lake Desert

Sunny. Highs 86 to 93. North Winds up to 10 Mph. Shifting to southwest in the afternoon.

Tonight 21 Aug Arco/Mud Lake Desert

Partly cloudy. Lows 50 to 59. Southwest Winds 10 to 15 Mph. Shifting to north after midnight.

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  • Temperature Real-Time

Rays Lake Temperature Statistics

August Temperature

Rexburg, Rexburg-Madison County Airport (23 miles)

  • Lowest 9 August, 2025

    44.7 °F

  • Average August

    69.9 °F

  • Highest 13 August, 2025

    95.6 °F

Climate (2020–Present)

Rexburg, Rexburg-Madison County Airport (23 miles)

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  • Average Low 2020–2025

    33.4 °F

  • Average 2020–2025

    45.4 °F

  • Average High 2020–2025

    57.5 °F
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