Avalon State Park Weather Forecast
- 79
- 90
Chance Thunderstorms
- 80
- 89
Mostly Sunny
- 79
- 90
Chance Thunderstorms
- 78
- 89
Mostly Sunny
- 78
- 92
Slight Chance Thunderstorms
- 78
- 92
Slight Chance Thunderstorms
Today 13 Aug Coastal St. Lucie
Mostly sunny with a slight chance of Showers and Thunderstorms late in the Morning, then partly sunny with a chance of Showers and Thunderstorms late in the afternoon and towards Sunset. Highs in the mid 90s. Northwest Winds 5 to 10 Mph becoming southeast late in the afternoon and towards Sunset. Chance of rain 40 percent. Heat index Values up to 109.
Tonight 13 Aug Coastal St. Lucie
Mostly clear. Lows in the upper 70s. South Winds around 5 Mph.
Avalon State Park Temperature Statistics
August Temperature
Fort Pierce, St. Lucie County International Airport (4.3 miles)
Lowest 2 August, 2026
74.6 °FAverage August
83.4 °FHighest 1 August, 2026
93.7 °F
Climate (2021–2026)
Fort Pierce, St. Lucie County International Airport (4.3 miles)
Average Low 2021–2026
65.9 °FAverage 2021–2026
74.7 °FAverage High 2021–2026
83.6 °F