Riverside Weather Forecast

    • 79
    • 87

    Thunderstorms Likely

    • 79
    • 87

    Thunderstorms Likely

    • 78
    • 88

    Rain Showers Likely

    • 78
    • 89

    Thunderstorms Likely

    • 77
    • 88

    Rain Showers

    • 78
    • 88

    Thunderstorms Likely

Today 12 Sep Coastal Palm Beach County

Showers likely. A chance of Thunderstorms in the Morning, then Thunderstorms likely in the afternoon. Humid with Highs around 90. Southeast Winds 5 to 10 Mph. Chance of rain 70 percent. Heat index Values up to 105.

Tonight 12 Sep Coastal Palm Beach County

Mostly cloudy in the Evening, then becoming partly cloudy. A chance of Showers and Thunderstorms. Humid with Lows in the upper 70s. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent.

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Riverside Temperature Statistics

September Temperature

Witham Field Airport (17.4 miles)

  • Lowest 7 September, 2026

    73.4 °F

  • Average September

    80.9 °F

  • Highest 5 September, 2026

    93.2 °F

Climate (2021–2026)

Witham Field Airport (17.4 miles)

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  • Average Low 2021–2026

    69.4 °F

  • Average 2021–2026

    74.6 °F

  • Average High 2021–2026

    83.1 °F
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