Lewisville Weather Forecast

    • 40
    • 59

    Rain Likely

    • 37
    • 60

    Rain

    • 27
    • 46

    Snow

    • 27
    • 51

    Chance Snow

    • 30
    • 58

    Mostly Sunny

    • 33
    • 64

    Partly Sunny

Today 31 Mar Upper Snake River Plain

Mostly cloudy. A slight chance of rain in the morning. Then a chance of rain Showers and a slight chance of Thunderstorms in the afternoon. Windy. Highs 52 to 61. Southwest Winds 10 to 15 Mph. Increasing to 20 to 30 Mph in the afternoon.

Tonight 31 Mar Upper Snake River Plain

Mostly cloudy with a chance of rain. Breezy. Lows 33 to 42. Southwest Winds 15 to 25 Mph. Decreasing to 10 to 15 Mph after midnight.

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Lewisville Temperature Statistics

March Temperature

Idaho Falls Regional Airport (12.4 miles)

  • Lowest 15 March, 2026

    16.6 °F

  • Average March

    45.7 °F

  • Highest 20 March, 2026

    78.7 °F

Climate (2021–Present)

Idaho Falls Regional Airport (12.4 miles)

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  • Average Low 2021–2026

    33.9 °F

  • Average 2021–2026

    46.9 °F

  • Average High 2021–2026

    59.8 °F
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