Upper Arcadia Reservoir Weather Forecast

    • 55
    • 88

    Chance Rain Showers

    • 57
    • 89

    Mostly Sunny

    • 58
    • 96

    Sunny

    • 58
    • 97

    Hot

    • 52
    • 91

    Breezy

    • 51
    • 85

    Sunny

Today 29 Jul Upper Snake River Plain

Partly sunny. Isolated Showers and Thunderstorms in the morning. Then scattered rain Showers and isolated Thunderstorms in the afternoon. Highs 85 to 92. Northeast Winds around 10 Mph shifting to south in the afternoon.

Tonight 29 Jul Upper Snake River Plain

Mostly cloudy with scattered rain Showers and isolated Thunderstorms in the evening. Then mostly clear after midnight. Patchy smoke through the night. Lows 53 to 60. East Winds 10 to 15 Mph. Shifting to northeast after midnight. Chance of precipitation 50 percent.

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Upper Arcadia Reservoir Temperature Statistics

July Temperature

Rexburg, Rexburg-Madison County Airport (23.6 miles)

  • Lowest 1 July, 2026

    44.7 °F

  • Average July

    74.7 °F

  • Highest 12 July, 2026

    101.6 °F

Climate (2021–2026)

Rexburg, Rexburg-Madison County Airport (23.6 miles)

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  • Average Low 2021–2026

    34.3 °F

  • Average 2021–2026

    46.3 °F

  • Average High 2021–2026

    58.4 °F
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