Lewisville Weather Forecast

    • 55
    • 94

    Patchy Smoke

    • 58
    • 92

    Areas Smoke

    • 55
    • 87

    Mostly Cloudy

    • 50
    • 80

    Chance Rain

    • 47
    • 76

    Chance Thunderstorms

    • 46
    • 77

    Chance Thunderstorms

Today 10 Aug Upper Snake River Plain

Sunny. Patchy smoke in the afternoon. Highs 90 to 97. South Winds up to 10 Mph. Increasing to southwest 10 to 20 Mph in the afternoon.

Tonight 10 Aug Upper Snake River Plain

Mostly clear. Breezy. Lows 52 to 62. Southwest Winds 15 to 25 Mph. Becoming west around 10 Mph after midnight.

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  • Temperature Real-Time

Lewisville Temperature Statistics

August Temperature

Idaho Falls Regional Airport (12.4 miles)

  • Lowest 4 August, 2026

    39.7 °F

  • Average August

    70.2 °F

  • Highest 1 August, 2026

    101.6 °F

Climate (2021–2026)

Idaho Falls Regional Airport (12.4 miles)

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  • Average Low 2021–2026

    33.7 °F

  • Average 2021–2026

    46.8 °F

  • Average High 2021–2026

    59.9 °F
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