Lewisville Weather Forecast

    • 60
    • 91

    Slight Chance Thunderstorms

    • 54
    • 86

    Chance Rain Showers

    • 50
    • 81

    Rain Showers Likely

    • 49
    • 81

    Mostly Sunny

    • 51
    • 85

    Mostly Sunny

    • 52
    • 90

    Mostly Sunny

    • 54
    • 92

    Mostly Sunny

Today 2 Jul Upper Snake River Plain

Mostly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Some Thunderstorms may produce gusty Winds in the afternoon. Highs 86 to 94. East Winds around 10 Mph. Shifting to southwest in the afternoon.

Tonight 2 Jul Upper Snake River Plain

Increasing Clouds. Lows 55 to 63. South Winds 10 to 15 Mph.

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Lewisville Temperature Statistics

July 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

    46 °F

  • Average High 2020–2025

    58.8 °F
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