Lewisville Weather Forecast

    • 59
    • 84

    Chance Thunderstorms

    • 62
    • 89

    Slight Chance Thunderstorms

    • 61
    • 91

    Mostly Sunny

    • 60
    • 90

    Partly Sunny

    • 58
    • 83

    Slight Chance Thunderstorms

    • 55
    • 79

    Slight Chance Thunderstorms

Today 24 May Watonwan

Warmer, sunny. Highs in the lower 80s. South Winds 5 to 15 Mph.

Tonight 24 May Watonwan

Partly cloudy. Chance of rain Showers and slight chance of Thunderstorms in the Evening, then chance of Thunderstorms after midnight. Lows in the upper 50s. South Winds 10 to 15 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewisville Temperature Statistics

May Temperature

St. James Municipal Airport (6.8 miles)

  • Lowest 5 May, 2026

    30.2 °F

  • Average May

    56.2 °F

  • Highest 15 May, 2026

    91.4 °F

Climate (2021–Present)

St. James Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    36.7 °F

  • Average 2021–2026

    46.9 °F

  • Average High 2021–2026

    57.1 °F
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