Lostmans River - Onion Key Weather Forecast

    • 73
    • 93

    Thunderstorms Likely

    • 73
    • 93

    Thunderstorms Likely

    • 73
    • 94

    Thunderstorms

    • 73
    • 95

    Chance Thunderstorms

    • 73
    • 95

    Thunderstorms Likely

    • 73
    • 95

    Chance Thunderstorms

Today 24 Jun Mainland Monroe

Mostly sunny. A chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. Southeast Winds around 5 Mph, becoming south this afternoon. Chance of rain 50 percent.

Tonight 24 Jun Mainland Monroe

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy with a slight chance of Showers and Thunderstorms after midnight. Humid with Lows in the lower 70s. East Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Real-Time

Lostmans River - Onion Key Temperature Statistics

June Temperature

Miami, Kendall-Tamiami Executive Airport (43.5 miles)

  • Lowest 6 June, 2026

    67.6 °F

  • Average June

    82.8 °F

  • Highest 2 June, 2026

    96.7 °F

Climate (2021–2026)

Miami, Kendall-Tamiami Executive Airport (43.5 miles)

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  • Average Low 2021–2026

    69 °F

  • Average 2021–2026

    77.2 °F

  • Average High 2021–2026

    85.8 °F
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