| NWS Forecast for: San Jacinto County Issued by: National Weather Service Houston, TX Last Update: 123 PM CDT Sat Aug 15 2026 | |
| This Afternoon: Sunny, hot with highs in the upper 90s. South winds around 5 mph. Heat index values up to 107. Tonight: Mostly clear. Lows in the lower 70s. South winds 5 to 10 mph. Sunday: Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph, becoming south in the afternoon. Heat index values up to 106. Sunday Night: Mostly clear. Lows in the lower 70s. South winds around 5 mph. Monday: Sunny, hot with highs in the upper 90s. West winds around 5 mph, becoming south in the afternoon. Heat index values up to 106. Monday Night: Clear. Lows in the mid 70s. Tuesday: Sunny, hot with highs in the upper 90s. Heat index values up to 110. Tuesday Night: Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. Wednesday: Sunny, hot with highs in the upper 90s. Heat index values up to 110. Wednesday Night: Mostly clear. Lows in the mid 70s. Thursday: Sunny, hot with highs in the upper 90s. Heat index values up to 110. Thursday Night: Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. Friday: Sunny, hot with highs in the upper 90s. Heat index values up to 110. | |
| Zone Forecast: San Jacinto County | |
Visit your local NWS office at: https://www.weather.gov/hgx |