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Costas Lake Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 |  |  |  |  |  |  | | | | | |
| Mostly Clear | Sunny | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Chance of Showers | Showers | Chance of Showers | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Chance of Showers |
| Lo: 49°FLo: 9°C | Hi: 85°FHi: 29°C | Lo: 51°FLo: 11°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C | Hi: 81°FHi: 27°C Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C Lo: 59°FLo: 15°C | Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C Lo: 59°FLo: 15°C |
| POP: 40% | POP: 60% | POP: 50% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 611 PM CDT Wed Oct 28 2026 
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Issued: 622 PM CDT Wed Oct 28 2026
Key Messages
- Elevated fire danger concerns will persist through Thursday due to very dry ground conditions and low humidity each day.
- Showers and isolated thunderstorms are possible across the forecast area this weekend. While heavy rainfall is possible, it is not a certainty for all areas.
- There is an additional chance for thunderstorms during the middle of next week.
Discussion
... Issued at 213 PM CDT Wed Oct 28 2026
Dry and warm conditions to continue across the forecast area through the day Fri...