Grand Isle Weather Forecast
- 74
- 89
Rain Showers
- 75
- 91
Thunderstorms Likely
- 76
- 91
Chance Thunderstorms
- 75
- 91
Chance Thunderstorms
- 75
- 89
Chance Thunderstorms
- 76
- 91
Chance Thunderstorms
- 75
- 91
Thunderstorms Likely
Today 5 Jul Mainland Southern Brevard
Partly cloudy. A chance of Showers and Thunderstorms early in the Afternoon, then Showers and Thunderstorms likely late in the afternoon and towards Sunset. Highs in the upper 80s. Southwest Winds 5 to 10 Mph becoming southeast late in the afternoon and towards Sunset. Chance of rain 70 percent. Heat index Values up to 101.
Tonight 5 Jul Mainland Southern Brevard
Considerable cloudiness early in the evening then becoming partly cloudy. Showers and Thunderstorms likely early in the Evening, then a chance of Showers and Thunderstorms in the late evening and early morning. Lows in the mid 70s. East Winds 5 to 10 Mph becoming southwest in the late evening and overnight. Chance of rain 70 percent.
Grand Isle Temperature Statistics
July Temperature
Cocoa - Patrick Air Force Base (6.2 miles)
Lowest 1 July, 2025
75 °FAverage July
79.4 °FHighest 1 July, 2025
87.4 °F
Climate (2020–Present)
Cocoa - Patrick Air Force Base (6.2 miles)
Average Low 2020–2025
70 °FAverage 2020–2025
75.1 °FAverage High 2020–2025
81.2 °F