Grand Isle Weather Forecast

    • 54
    • 66

    Mostly Sunny

    • 61
    • 73

    Mostly Cloudy

    • 63
    • 74

    Mostly Cloudy

    • 63
    • 79

    Slight Chance Rain Showers

    • 62
    • 80

    Partly Sunny

    • 54
    • 80

    Partly Sunny

    • 47
    • 67

    Slight Chance Rain Showers

Today 20 Jan Mainland Southern Brevard

Partly sunny. Breezy. Highs in the mid 60s. North Winds 15 to 20 Mph.

Tonight 20 Jan Mainland Southern Brevard

Partly cloudy. Breezy. Lows in the upper 50s. Northeast Winds 15 to 20 Mph decreasing to 10 to 15 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Isle Temperature Statistics

January Temperature

Cocoa - Patrick Air Force Base (6.2 miles)

  • Lowest 1 January, 2026

    45.3 °F

  • Average January

    65 °F

  • Highest 11 January, 2026

    82.6 °F

Climate (2021–Present)

Cocoa - Patrick Air Force Base (6.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    69.9 °F

  • Average 2021–2026

    75.1 °F

  • Average High 2021–2026

    81.3 °F
Get WillyWeather+ to remove ads