Merrill Weather Forecast

    • 55
    • 73

    Rain Showers Likely

    • 54
    • 75

    Partly Sunny

    • 61
    • 82

    Mostly Sunny

    • 65
    • 85

    Mostly Sunny

    • 70
    • 89

    Mostly Sunny

    • 69
    • 90

    Slight Chance Thunderstorms

Today 4 Aug Plymouth

Showers likely with a slight chance of Thunderstorms in the Morning, then Showers likely with a chance of Thunderstorms in the afternoon. Patchy smoke. Not as warm with Highs in the lower 70s. North Winds 10 to 15 Mph. Chance of rain 70 percent.

Tonight 4 Aug Plymouth

Mostly cloudy. Showers likely with a chance of Thunderstorms in the evening. Lows in the mid 50s. North Winds around 5 Mph. Chance of rain 70 percent.

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Merrill Temperature Statistics

August Temperature

Le Mars Municipal Airport (4.3 miles)

  • Lowest 1 August, 2026

    60.8 °F

  • Average August

    71 °F

  • Highest 1 August, 2026

    82.4 °F

Climate (2021–2026)

Le Mars Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    36.6 °F

  • Average 2021–2026

    47.9 °F

  • Average High 2021–2026

    59.1 °F
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