Jefferson County Fairgrounds Weather Forecast

    • 53
    • 77

    Increasing Clouds

    • 32
    • 67

    Rain

    • 32
    • 43

    Rain/Snow

    • 36
    • 49

    Rain

    • 37
    • 52

    Chance Rain

    • 34
    • 55

    Rain Likely

Today 30 Mar Jefferson

Warmer, sunny. Highs in the mid 70s. South Winds up to 15 Mph.

Tonight 30 Mar Jefferson

Warmer. Partly cloudy with a 30 percent chance of light rain and Thunderstorms through around Midnight, then mostly cloudy after midnight. Lows in the lower 50s. South Winds 5 to 10 Mph.

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Jefferson County Fairgrounds Temperature Statistics

March Temperature

Watertown (11.8 miles)

  • Lowest 1 March, 2026

    7.2 °F

  • Average March

    38.4 °F

  • Highest 21 March, 2026

    72.7 °F

Climate (2021–Present)

Watertown (11.8 miles)

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  • Average Low 2021–2026

    35.8 °F

  • Average 2021–2026

    45.6 °F

  • Average High 2021–2026

    54.7 °F
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