Armstrong Weather Forecast

    • 75
    • 92

    Rain Showers Likely

    • 74
    • 94

    Rain Showers Likely

    • 73
    • 90

    Rain Showers

    • 74
    • 88

    Rain Showers

    • 74
    • 89

    Rain Showers Likely

    • 73
    • 90

    Chance Thunderstorms

Today 5 Sep Southern Inland St. Johns

Partly sunny. A slight chance of Showers and Thunderstorms this Morning, then Showers likely with a chance of Thunderstorms this afternoon. Highs in the lower 90s. Southwest Winds around 5 Mph. Chance of rain 70 percent. Heat index Values up to 105.

Tonight 5 Sep Southern Inland St. Johns

Partly cloudy. A chance of Showers and Thunderstorms in the evening. Lows in the mid 70s. Southwest Winds around 5 Mph. Chance of rain 40 percent.

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Armstrong Temperature Statistics

September Temperature

Northeast Florida Regional Airport (14.9 miles)

  • Lowest 1 September, 2026

    77 °F

  • Average September

    81.6 °F

  • Highest 1 September, 2026

    86 °F

Climate (2021–2026)

Northeast Florida Regional Airport (14.9 miles)

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  • Average Low 2021–2026

    63.7 °F

  • Average 2021–2026

    70.8 °F

  • Average High 2021–2026

    78.1 °F
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