Jefferson County Fairgrounds Weather Forecast

    • 38
    • 46

    Rain Showers

    • 48
    • 66

    Rain Showers

    • 32
    • 56

    Slight Chance Rain Showers

    • 44
    • 60

    Mostly Sunny

    • 42
    • 67

    Mostly Sunny

    • 34
    • 61

    Rain Likely

Today 5 Mar Jefferson

Cloudy. Isolated light rain Showers in the morning. Areas of fog through the day. Highs in the mid 40s. Northeast Winds up to 5 Mph. Chance of Showers 20 percent.

Tonight 5 Mar Jefferson

Cloudy. Areas of fog. Lows in the upper 30s. East Winds up to 5 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

    28.7 °F

  • Highest 3 March, 2026

    45.7 °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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