Lewisville Weather Forecast

    • 32
    • 50

    Mostly Cloudy

    • 35
    • 47

    Chance Rain/Snow

    • 31
    • 50

    Slight Chance Rain

    • 32
    • 52

    Mostly Sunny

    • 30
    • 52

    Chance Snow

    • 25
    • 46

    Chance Snow

Today 28 Feb Upper Snake River Plain

Mostly sunny. Highs 44 to 51. Southwest Winds up to 10 Mph.

Tonight 28 Feb Upper Snake River Plain

Mostly cloudy. A chance of rain after midnight. Lows 27 to 37. West Winds up to 10 Mph. Shifting to north after midnight. Chance of precipitation 50 percent.

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  • Temperature Real-Time

Lewisville Temperature Statistics

February Temperature

Idaho Falls Regional Airport (12.4 miles)

  • Lowest 20 February, 2026

    -0.3 °F

  • Average February

    34.2 °F

  • Highest 8 February, 2026

    58.6 °F

Climate (2021–Present)

Idaho Falls Regional Airport (12.4 miles)

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  • Average Low 2021–2026

    33.7 °F

  • Average 2021–2026

    46.7 °F

  • Average High 2021–2026

    59.6 °F
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