St Johns Weather Forecast

    • 78
    • 98

    Chance Rain Showers

    • 78
    • 98

    Chance Rain Showers

    • 79
    • 98

    Hot

    • 80
    • 99

    Chance Thunderstorms

    • 80
    • 100

    Chance Thunderstorms

    • 79
    • 99

    Chance Thunderstorms

Today 14 Aug Western St. Johns

Mostly sunny. A chance of Showers with a slight chance of Thunderstorms this afternoon. Highs in the mid 90s. West Winds 5 to 10 Mph. Chance of rain 50 percent. Heat index Values up to 114.

Tonight 14 Aug Western St. Johns

Partly cloudy with a chance of Showers with a slight chance of Thunderstorms in the Evening, then mostly clear after midnight. Lows in the upper 70s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent. Heat index Values up to 105 early in the evening.

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St Johns Temperature Statistics

August Temperature

Jacksonville Naval Air Station (11.8 miles)

  • Lowest 8 August, 2026

    73.9 °F

  • Average August

    81.8 °F

  • Highest 11 August, 2026

    97 °F

Climate (2021–2026)

Jacksonville Naval Air Station (11.8 miles)

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  • Average Low 2021–2026

    65 °F

  • Average 2021–2026

    72.7 °F

  • Average High 2021–2026

    81.3 °F
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