Jefferson County Fairgrounds Weather Forecast

    • 63
    • 88

    Increasing Clouds

    • 62
    • 81

    Rain Showers

    • 58
    • 75

    Chance Rain Showers

    • 54
    • 78

    Mostly Sunny

    • 59
    • 81

    Mostly Sunny

    • 65
    • 84

    Slight Chance Rain Showers

    • 61
    • 83

    Chance Thunderstorms

Today 30 Jul Jefferson

Partly sunny. Southwest Winds around 5 Mph.

Tonight 30 Jul Jefferson

Mostly cloudy. Patchy smoke in the evening. Lows in the lower 60s. South Winds up to 5 Mph.

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Jefferson County Fairgrounds Temperature Statistics

July Temperature

Watertown (11.8 miles)

  • Lowest 23 July, 2026

    47.8 °F

  • Average July

    74.5 °F

  • Highest 14 July, 2026

    95.4 °F

Climate (2021–2026)

Watertown (11.8 miles)

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  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    44.9 °F

  • Average High 2021–2026

    53.9 °F
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