Armstrong Weather Forecast

    • 61
    • 79

    Chance Thunderstorms

    • 58
    • 75

    Chance Rain Showers

    • 59
    • 78

    Chance Thunderstorms

    • 60
    • 82

    Chance Thunderstorms

    • 55
    • 81

    Slight Chance Thunderstorms

    • 54
    • 76

    Mostly Sunny

Today 18 Sep Emmet

Mostly cloudy with a slight chance of Showers in the Morning, then partly sunny with a chance of Showers with a slight chance of Thunderstorms in the afternoon. Highs in the upper 70s. South Winds 5 to 10 Mph. Chance of rain 30 percent.

Tonight 18 Sep Emmet

Mostly cloudy with a 20 percent chance of Showers. Patchy fog. Near steady temperature in the lower 60s. Southeast Winds around 5 Mph.

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Armstrong Temperature Statistics

September Temperature

Estherville, Estherville Municipal Airport (13 miles)

  • Lowest 7 September, 2025

    37.9 °F

  • Average September

    63.5 °F

  • Highest 13 September, 2025

    95 °F

Climate (2020–Present)

Estherville, Estherville Municipal Airport (13 miles)

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  • Average Low 2020–2025

    37.1 °F

  • Average 2020–2025

    47.7 °F

  • Average High 2020–2025

    58.3 °F
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