Watertown Weather Forecast

    • 53
    • 71

    Decreasing Clouds

    • 59
    • 77

    Mostly Sunny

    • 62
    • 82

    Mostly Sunny

    • 62
    • 84

    Mostly Sunny

    • 63
    • 85

    Slight Chance Thunderstorms

    • 63
    • 82

    Slight Chance Thunderstorms

Today 4 Aug Codington

Partly sunny. Not as warm with Highs in the lower 70s. Northwest Winds 10 to 15 Mph.

Tonight 4 Aug Codington

Partly cloudy in the Evening, then becoming mostly clear. Lows in the lower 50s. West Winds 5 to 10 Mph, becoming south after midnight.

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Watertown Temperature Statistics

August Temperature

Watertown, Watertown Municipal Airport (1.2 miles)

  • Lowest 1 August, 2026

    56.6 °F

  • Average August

    71.6 °F

  • Highest 2 August, 2026

    84 °F

Climate (2021–2026)

Watertown, Watertown Municipal Airport (1.2 miles)

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  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    55.9 °F
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