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| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
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| Chance of T-Storm | Sunny | Mostly Clear | Chance of T-Storm | Mostly Clear | Chance of T-Storm | Clearing | Chance of T-Storm | Mostly Clear | Chance of T-Storm | Mostly Clear | Chance of T-Storm |
| Lo: 79°FLo: 26°C | Hi: 95°FHi: 35°C | Lo: 79°FLo: 26°C | Hi: 95°FHi: 35°C | Lo: 79°FLo: 26°C | Hi: 95°FHi: 35°C | Lo: 79°FLo: 26°C | Hi: 91°FHi: 33°C | Lo: 79°FLo: 26°C | Hi: 91°FHi: 33°C | Lo: 79°FLo: 26°C | Hi: 91°FHi: 33°C |
| POP: 40% | POP: 30% | POP: 50% | POP: 40% | POP: 40% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 307 PM CDT Fri Aug 21 2026 
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Issued: 259 PM CDT Fri Aug 21 2026
Key Messages
- An Extreme Heat Warning is in effect until 8 PM for areas along and north of I-10. Expect highs 97 to 104F and/or heat indices 111 to 114F range. Coastal areas under an Advisory until 8 PM for HIs up to 111F.
- Heat Stress Levels have increased to Extreme (level 4 of 4) for southeast Texas and Louisiana Friday; this level of heat stress will persist through at least Monday.
- A boundary capable of producing showers and thunderstorms will move through this evening. The greatest threat wil...