Herkimer Weather Forecast

    • 64
    • 72

    Rain Showers

    • 51
    • 69

    Chance Rain Showers

    • 48
    • 66

    Mostly Sunny

    • 52
    • 68

    Partly Sunny

    • 50
    • 70

    Mostly Sunny

Today 30 Sep Marshall

Showers. A slight chance of Thunderstorms in the Morning, then a chance of Thunderstorms in the afternoon. Some Thunderstorms may produce heavy rainfall in the morning. Some Thunderstorms may produce heavy rainfall in the afternoon. Humid with Highs in the lower 70s. South Winds around 5 Mph. Chance of rain 90 percent.

Tonight 30 Sep Marshall

Showers with a chance of Thunderstorms. Some Thunderstorms may produce heavy rainfall. Humid with Lows in the mid 60s. Southeast Winds around 5 Mph. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Herkimer Temperature Statistics

September Temperature

Marysville Municipal Airport (4.3 miles)

  • Lowest 23 September, 2026

    55.4 °F

  • Average September

    74.1 °F

  • Highest 8 September, 2026

    100.4 °F

Climate (2021–2026)

Marysville Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    66.6 °F
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