| NWS Forecast for: Bexar County Issued by: National Weather Service Austin/San Antonio, TX Last Update: 129 PM CDT Thu Jun 18 2026 |  |
This Afternoon: Mostly sunny. Highs in the upper 90s. Southeast winds 10 to 15 mph. Highest heat index readings up to 116. Tonight: Partly cloudy in the evening, then becoming mostly cloudy. Humid with lows in the upper 70s. Southeast winds 10 to 15 mph. Highest heat index readings up to 115 early in the evening. Juneteenth: Mostly cloudy. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. East winds 10 to 15 mph. Highest heat index readings up to 106. Friday Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Humid with lows in the upper 70s. Southeast winds 10 to 15 mph. Chance of rain 50 percent. Saturday: Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. Southeast winds 5 to 10 mph. Chance of rain 50 percent. Saturday Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 40 percent. Sunday: Partly cloudy in the morning, then clearing. Highs in the lower 90s. Highest heat index readings up to 105. Sunday Night Through Monday Night: Mostly clear. Lows in the upper 70s. Highs in the mid 90s. Highest heat index readings up to 105. Tuesday: Mostly cloudy in the morning, then clearing. Highs in the mid 90s. Tuesday Night: Mostly clear. Lows in the mid 70s. Wednesday: Partly cloudy in the morning, then clearing. Highs in the mid 90s. | |
| Zone Forecast: Bexar County | |
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