Jupiter Island Weather Forecast
- 63
- 68
Slight Chance Rain Showers
- 63
- 72
Chance Rain Showers
- 63
- 73
Chance Rain Showers
- 62
- 75
Mostly Sunny
- 62
- 78
Sunny
- 64
- 80
Mostly Sunny
- 68
- 78
Mostly Sunny
Today 18 Mar Coastal Martin
Cloudy through late afternoon then becoming mostly cloudy. A slight chance of Showers early in the Morning, then a chance of Showers in the late morning and afternoon. Breezy. Highs in the upper 60s. North Winds 10 to 15 Mph increasing to 15 to 20 Mph late in the afternoon and towards Sunset. Chance of rain 30 percent.
Tonight 18 Mar Coastal Martin
Mostly cloudy in the late evening and early morning then becoming partly cloudy. Breezy. Lows around 60. North Winds 15 to 20 Mph decreasing to 10 to 15 Mph late.
Jupiter Island Temperature Statistics
March Temperature
Witham Field Airport (12.4 miles)
Lowest 1 March, 2026
66.2 °FAverage March
74.4 °FHighest 12 March, 2026
91.4 °F
Climate (2021–Present)
Witham Field Airport (12.4 miles)
Average Low 2021–2026
69.2 °FAverage 2021–2026
74.4 °FAverage High 2021–2026
83 °F