Weather WorldThe Lagoon, TX Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
The Lagoon Weather Forecast
| THIS AFTERNOON | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  | |  | | | | | | | | |
| Mostly Sunny | Mostly Clear | Sunny | Partly Cloudy | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear |
| Hi: 90°FHi: 32°C | Lo: 85°FLo: 29°C | Hi: 91°FHi: 33°C | Lo: 85°FLo: 29°C | Hi: 91°FHi: 33°C | Lo: 85°FLo: 29°C | Hi: 91°FHi: 33°C | Lo: 81°FLo: 27°C | Hi: 91°FHi: 33°C | Lo: 81°FLo: 27°C | Hi: 91°FHi: 33°C | Lo: 85°FLo: 29°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 158 PM CDT Tue Aug 18 2026 
The Lagoon Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
The Lagoon Weather Map
The Lagoon Quick Facts
The Lagoon Forecast Discussion
Issued: 612 PM CDT Tue Aug 18 2026
Key Messages
- Hot and dry conditions to prevail.
- Heat indices should be in the 103-107F range today and Wednesday...possibly trending up a touch after that. We`ll monitor for potential future Heat Advisories. Regardless of whether an advisory is in effect on any given day, heat precautions/messaging remain the same for those with plans or working outdoors.
- Rain chances currently mainly remain too low to advertise for most locations at the current time.
Discussion
... Is...