Jefferson County Fairgrounds Weather Forecast

    • 48
    • 71

    Increasing Clouds

    • 52
    • 71

    Mostly Cloudy

    • 49
    • 71

    Mostly Cloudy

    • 44
    • 62

    Mostly Cloudy

    • 46
    • 61

    Mostly Cloudy

    • 47
    • 67

    Slight Chance Rain Showers

Today 23 Oct Jefferson

Sunny. Patchy fog in the morning. Highs in the lower 70s. Southeast Winds up to 10 Mph.

Tonight 23 Oct Jefferson

Partly cloudy. Lows in the upper 40s. Southeast Winds up to 10 Mph.

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Jefferson County Fairgrounds Temperature Statistics

October Temperature

Watertown (11.8 miles)

  • Lowest 17 October, 2026

    31.8 °F

  • Average October

    57.6 °F

  • Highest 12 October, 2026

    86.5 °F

Climate (2021–2026)

Watertown (11.8 miles)

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  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    44.8 °F

  • Average High 2021–2026

    53.8 °F
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