Johnston Key - Southwest End Weather Forecast

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    Chance Rain Showers

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    Chance Rain Showers

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    Chance Rain Showers

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    Chance Rain Showers

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    Slight Chance Thunderstorms

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    Slight Chance Thunderstorms

Today 30 Mar Monroe Lower Keys

Partly cloudy with a chance of Showers and a slight chance of Thunderstorms. Breezy. Highs in the lower 80s. East Winds 15 to 20 Mph. Chance of rain 40 percent.

Tonight 30 Mar Monroe Lower Keys

Partly to mostly cloudy with a chance of Showers and a slight chance of Thunderstorms. Breezy. Lows in the mid 70s. East Winds 15 to 20 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnston Key - Southwest End Temperature Statistics

March Temperature

Key West Naval Air Station (10.6 miles)

  • Lowest 18 March, 2026

    64 °F

  • Average March

    75.8 °F

  • Highest 5 March, 2026

    84 °F

Climate (2021–Present)

Key West Naval Air Station (10.6 miles)

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  • Average Low 2021–2026

    77.2 °F

  • Average 2021–2026

    81.7 °F

  • Average High 2021–2026

    86.5 °F
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