San Antonio Forecast: Weekend Rain, Heat & Humidity
San Antonians, prepare for a classic summer weekend mix! Our city is bracing for scattered rain chances, steamy temperatures, and persistently high humidity. Stay informed to make the most of your plans and navigate the city safely.
Scattered Showers and Storms Ahead
While a full weekend washout is unlikely, expect isolated to scattered pop-up showers and thunderstorms from Friday through Sunday, primarily in the afternoon and early evening. These summer storms develop quickly; keep a weather app handy for current radar updates.
Watch Out for Heavy Downpours and Lightning
Any storms that materialize could bring locally heavy downpours, leading to street flooding, especially in low-lying areas. Gusty winds and frequent lightning are also possible. If you hear thunder, head indoors immediately. Drivers must exercise extreme caution and never attempt to drive through flooded areas.
Brace for Intense Heat and Oppressive Humidity
Beyond the rain, San Antonio will continue to bake under very hot and exceptionally humid conditions. Daytime highs will consistently hover in the low 90s, with overnight lows only dipping into the mid-70s, offering little relief.
The critical factor is the “feels like” temperature. Due to abundant moisture, the heat index is forecast to climb well into the low triple digits (100-105°F). This significantly increases the risk of heat-related illnesses. Limit strenuous outdoor activities, wear light clothing, and remember to check on vulnerable neighbors, children, and pets.
Your Weekend Weather Snapshot
| Day | High Temp | Low Temp | Rain Chance | “Feels Like” Temp |
|---|---|---|---|---|
| Friday | ~93°F | ~75°F | Isolated (30%) | 100-105°F |
| Saturday | ~92°F | ~74°F | Scattered (40-50%) | 100-105°F |
| Sunday | ~91°F | ~74°F | Scattered (50%) | 100-105°F |
Looking Beyond the Weekend
Into early next week, the weather pattern isn’t expected to shift dramatically. While daily rain chances might slightly decrease, the overarching theme remains: hot, humid, and sticky conditions. Temperatures will continue in the low 90s, keeping “feels like” values elevated. It’s typical San Antonio summer weather.
Frequently Asked Questions
- Will the rain spoil all my outdoor plans this weekend?
No, showers will be scattered and intermittent. Expect periods of sunshine, especially mornings, but be ready for quick changes and afternoon storms. - How hot will it truly feel with the humidity?
Despite air temps in the low 90s, high humidity means the heat index will reach 100°F to 105°F, necessitating extra precautions. - Is there a high risk of widespread severe weather?
No widespread severe weather is anticipated. However, individual pop-up storms can be strong, bringing heavy rain, frequent lightning, and gusty winds. - What’s the best time for outdoor activities to avoid heat and rain?
Mornings are generally cooler and drier. Always monitor local radar and forecasts, as afternoon storms and peak heat can develop rapidly.
With the combination of pop-up rain and intense heat this weekend, San Antonio, keep an eye on the forecast, stay hydrated, and always have an indoor alternative for your outdoor plans. Enjoy your weekend safely!
San Antonio Weekend Rain Heat And Humidity
