Lewisville Weather Forecast

    • 29
    • 44

    Mostly Cloudy

    • 26
    • 48

    Partly Sunny

    • 32
    • 49

    Rain/Snow Likely

    • 25
    • 45

    Snow

    • 20
    • 39

    Chance Snow

    • 21
    • 36

    Chance Snow

Today 14 Feb Upper Snake River Plain

Partly sunny. Patchy fog in the morning. Highs 36 to 45. East Winds up to 10 Mph. Shifting to south around 10 Mph in the afternoon.

Tonight 14 Feb Upper Snake River Plain

Mostly cloudy. Lows 25 to 33. East Winds up to 10 Mph.

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Lewisville Temperature Statistics

February Temperature

Idaho Falls Regional Airport (12.4 miles)

  • Lowest 2 February, 2026

    19.7 °F

  • Average February

    37.2 °F

  • Highest 6 February, 2026

    57.7 °F

Climate (2021–Present)

Idaho Falls Regional Airport (12.4 miles)

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  • Average Low 2021–2026

    33.6 °F

  • Average 2021–2026

    46.6 °F

  • Average High 2021–2026

    59.5 °F
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