Neptune Weather Forecast

    • 64
    • 89

    Thunderstorms Likely

    • 61
    • 81

    Rain Showers Likely

    • 59
    • 79

    Chance Thunderstorms

    • 66
    • 87

    Mostly Sunny

    • 72
    • 92

    Mostly Sunny

    • 74
    • 95

    Mostly Sunny

Today 16 Jun Plymouth

Partly sunny. A chance of Showers and Thunderstorms this afternoon. Highs around 90. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 16 Jun Plymouth

Showers likely. Thunderstorms Likely, mainly in the evening. Humid with Lows in the mid 60s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming northeast around 5 Mph after midnight. Chance of rain 60 percent.

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Neptune Temperature Statistics

June Temperature

Le Mars Municipal Airport (7.5 miles)

  • Lowest 4 June, 2025

    48.2 °F

  • Average June

    68.9 °F

  • Highest 2 June, 2025

    93.2 °F

Climate (2020–Present)

Le Mars Municipal Airport (7.5 miles)

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  • Average Low 2020–2025

    37.5 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    59.9 °F
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