Lewisville Weather Forecast

    • 16
    • 31

    Increasing Clouds

    • 20
    • 41

    Partly Sunny

    • 26
    • 40

    Rain Likely

    • -3
    • 31

    Chance Snow

    • 19
    • 31

    Mostly Cloudy

    • 11
    • 30

    Mostly Cloudy

    • 17
    • 27

    Mostly Cloudy

Today 15 Dec Watonwan

Not as cold. Sunny. Highs in the lower 30s. Northwest Winds up to 5 Mph.

Tonight 15 Dec Watonwan

Not as cold. Mostly cloudy. Lows around 17. Temperatures rising into the upper 20s after midnight. South Winds up to 5 Mph increasing to 5 to 15 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewisville Temperature Statistics

December Temperature

St. James Municipal Airport (6.8 miles)

  • Lowest 4 December, 2025

    -14.8 °F

  • Average December

    13.9 °F

  • Highest 9 December, 2025

    39.2 °F

Climate (2020–Present)

St. James Municipal Airport (6.8 miles)

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  • Average Low 2020–2025

    36.6 °F

  • Average 2020–2025

    46.7 °F

  • Average High 2020–2025

    56.8 °F
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