Herkimer Weather Forecast

    • 50
    • 73

    Chance Thunderstorms

    • 49
    • 74

    Slight Chance Thunderstorms

    • 56
    • 81

    Partly Sunny

    • 60
    • 86

    Partly Sunny

    • 60
    • 84

    Partly Sunny

Today 22 May Marshall

Showers likely with a slight chance of Thunderstorms this Morning, then partly sunny with a chance of Showers and Thunderstorms this afternoon. Warmer with Highs in the lower 70s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

Tonight 22 May Marshall

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the lower 50s. Southwest Winds around 5 Mph, becoming northwest around 5 Mph after midnight. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Herkimer Temperature Statistics

May Temperature

Marysville Municipal Airport (4.3 miles)

  • Lowest 2 May, 2026

    30.2 °F

  • Average May

    63.6 °F

  • Highest 15 May, 2026

    91.4 °F

Climate (2021–Present)

Marysville Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    66.6 °F
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