Lewisville Weather Forecast

    • 34
    • 65

    Mostly Sunny

    • 38
    • 72

    Sunny

    • 44
    • 77

    Mostly Sunny

    • 44
    • 72

    Chance Rain Showers

    • 41
    • 69

    Chance Rain Showers

    • 42
    • 70

    Partly Sunny

    • 45
    • 74

    Partly Sunny

Today 1 May Upper Snake River Plain

Sunny. Highs 59 to 67. Northeast Winds up to 10 Mph.

Tonight 1 May Upper Snake River Plain

Mostly clear. Lows 33 to 40. Southeast Winds around 10 Mph. Shifting to northeast after midnight.

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Lewisville Temperature Statistics

May Temperature

Idaho Falls Regional Airport (12.4 miles)

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Climate (2020–Present)

Idaho Falls Regional Airport (12.4 miles)

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  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    45.9 °F

  • Average High 2020–2025

    58.6 °F
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