Lewisville Weather Forecast

    • 38
    • 68

    Mostly Sunny

    • 45
    • 80

    Mostly Sunny

    • 43
    • 74

    Mostly Sunny

    • 43
    • 71

    Mostly Sunny

    • 46
    • 76

    Mostly Sunny

    • 53
    • 82

    Mostly Sunny

Today 11 Jun Upper Snake River Plain

Sunny. Highs 62 to 72. South Winds up to 10 Mph.

Tonight 11 Jun Upper Snake River Plain

Mostly clear. Lows 36 to 43. South Winds 10 to 15 Mph.

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Lewisville Temperature Statistics

June Temperature

Idaho Falls Regional Airport (12.4 miles)

  • Lowest 2 June, 2026

    36.6 °F

  • Average June

    60.2 °F

  • Highest 5 June, 2026

    85.6 °F

Climate (2021–Present)

Idaho Falls Regional Airport (12.4 miles)

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  • Average Low 2021–2026

    33.8 °F

  • Average 2021–2026

    46.9 °F

  • Average High 2021–2026

    59.9 °F
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