Lewisville Weather Forecast

    • 27
    • 53

    Becoming Sunny

    • 29
    • 58

    Sunny

    • 33
    • 66

    Mostly Sunny

    • 39
    • 68

    Partly Sunny

    • 39
    • 68

    Partly Sunny

    • 33
    • 59

    Chance Rain/Snow

    • 32
    • 56

    Chance Rain

Today 3 Apr Upper Snake River Plain

Mostly sunny. Not as cool. Highs 44 to 53. West Winds 10 to 15 Mph.

Tonight 3 Apr Upper Snake River Plain

Mostly clear. Lows 24 to 31. Southwest Winds 10 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewisville Temperature Statistics

April Temperature

Idaho Falls Regional Airport (12.4 miles)

  • Lowest 1 April, 2026

    41 °F

  • Average April

    45.7 °F

  • Highest 1 April, 2026

    57 °F

Climate (2021–Present)

Idaho Falls Regional Airport (12.4 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    33.9 °F

  • Average 2021–2026

    46.9 °F

  • Average High 2021–2026

    59.8 °F
Get WillyWeather+ to remove ads