San Juan Weather Forecast
- 78
- 87
Becoming Sunny
- 78
- 86
Mostly Sunny
- 78
- 86
Mostly Sunny
- 79
- 86
Rain Showers
- 79
- 87
Rain Showers
- 79
- 87
Rain Showers
Today 8 Jun San Juan and Vicinity
Partly Cloudy, then becoming variably cloudy early this Afternoon, then becoming partly cloudy. Isolated Showers this Morning, then scattered Showers this afternoon. Hazy. Highs around 91. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.
Tonight 8 Jun San Juan and Vicinity
Partly cloudy with isolated Showers in the Evening, then clear after midnight. Hazy. Lows around 81. Southeast Winds 5 to 10 Mph. Chance of rain less than 20 percent.
San Juan Temperature Statistics
June Temperature
San Juan Fernando Luis Ribas Dominicci (0.6 miles)
Lowest 1 June, 2026
78.8 °FAverage June
85.3 °FHighest 1 June, 2026
91.4 °F
Climate (2021–Present)
San Juan Fernando Luis Ribas Dominicci (0.6 miles)
Average Low 2021–2026
77.7 °FAverage 2021–2026
82.5 °FAverage High 2021–2026
85.3 °F