Lewisville Weather Forecast

    • 33
    • 44

    Mostly Cloudy

    • 37
    • 55

    Mostly Cloudy

    • 29
    • 55

    Breezy

    • 25
    • 45

    Mostly Cloudy

    • 35
    • 51

    Breezy

    • 36
    • 58

    Breezy

Today 7 Mar Upper Snake River Plain

Mostly cloudy. Patchy fog in the morning. Highs 38 to 48. Southwest Winds 10 to 15 Mph.

Tonight 7 Mar Upper Snake River Plain

Mostly cloudy. Patchy fog through the night. Lows 26 to 36. South Winds 10 to 15 Mph.

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Lewisville Temperature Statistics

March Temperature

Idaho Falls Regional Airport (12.4 miles)

  • Lowest 4 March, 2026

    27 °F

  • Average March

    40 °F

  • Highest 4 March, 2026

    53.1 °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

    46.7 °F

  • Average High 2021–2026

    59.6 °F
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