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Upper Clear Lake Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT |
 |  | | | |  |  | | |  | | |
| Sunny | Clear | Sunny | Mostly Clear | Sunny | Chance of Rain | Chance of T-Storm | Chance of Showers | Mostly Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear |
| Hi: 91°FHi: 33°C | Lo: 61°FLo: 16°C | Hi: 91°FHi: 33°C | Lo: 61°FLo: 16°C | Hi: 91°FHi: 33°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 91°FHi: 33°C | Lo: 65°FLo: 18°C |
| POP: 50% | POP: 70% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 626 AM CDT Wed Oct 07 2026 
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Issued: 625 AM CDT Wed Oct 7 2026
Key Messages
- Tropical Storm Isaias has formed in the southwestern Gulf and is expected to intensify into a hurricane by Thursday; it should begin impacting the northern Gulf Coast region as we approach the weekend.
- Heavy rainfall and windy conditions related to the TS Isaias may impact our forecast starting Friday night.
- Ahead of the TS Isaias, fire weather danger could increase late this week over mainly northern portions of the area.
Discussion
... Issued at 442 AM CDT Wed Oct 7 2026
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