San Antonio, Texas weather in June

Averages from 2021–2025 (150 days of record).

Average high: 95°F
Average low: 75°F
Rainy days: ~10 per month
Total precipitation: 3.2 in
Warmest recorded: 105°F
Coldest recorded: 66°F

Expect June days in San Antonio, Texas to top out around 95°F and cool to about 75°F overnight, with roughly 10 days of measurable rain across the month. In recent years June has ranged from 66°F to 105°F.

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Current San Antonio, Texas forecast → · Historical data by Open-Meteo (ERA5).