Herkimer Weather Forecast

    • 65
    • 88

    Chance Thunderstorms

    • 64
    • 84

    Slight Chance Thunderstorms

    • 64
    • 81

    Chance Thunderstorms

    • 66
    • 86

    Partly Sunny

    • 65
    • 86

    Chance Thunderstorms

    • 63
    • 84

    Slight Chance Thunderstorms

Today 21 Aug Marshall

Partly sunny. A chance of Showers with a slight chance of Thunderstorms this afternoon. Highs in the upper 80s. Southwest Winds around 5 Mph, becoming east this afternoon. Chance of rain 30 percent.

Tonight 21 Aug Marshall

Partly cloudy with a slight chance of Showers in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Humid with Lows in the mid 60s. East Winds around 5 Mph, becoming northeast after midnight. Chance of rain 40 percent.

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Herkimer Temperature Statistics

August Temperature

Marysville Municipal Airport (4.3 miles)

  • Lowest 2 August, 2026

    59 °F

  • Average August

    76.5 °F

  • Highest 9 August, 2026

    95 °F

Climate (2021–2026)

Marysville Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    66.6 °F
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