Jefferson County Fairgrounds Weather Forecast

    • 44
    • 57

    Mostly Cloudy

    • 49
    • 64

    Rain Showers Likely

    • 50
    • 71

    Chance Rain Showers

    • 52
    • 77

    Slight Chance Thunderstorms

    • 55
    • 81

    Mostly Sunny

    • 57
    • 83

    Partly Sunny

Today 21 May Jefferson

Partly sunny in the morning then becoming mostly cloudy. Slight chance of Sprinkles in the late morning and afternoon. Highs in the upper 50s. East Winds 10 to 15 Mph.

Tonight 21 May Jefferson

Mostly cloudy. Lows in the mid 40s. East Winds 5 to 10 Mph with Gusts to around 25 Mph.

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Jefferson County Fairgrounds Temperature Statistics

May Temperature

Watertown (11.8 miles)

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Climate (2021–Present)

Watertown (11.8 miles)

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  • Average Low 2021–2026

    35.7 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    54.5 °F
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