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Lost Flat Bay Weather Forecast
| REST OF TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  | | |  |  | | | | | |  |
| Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Mostly Clear | Chance of T-Storm | Partly Cloudy | Chance of T-Storm | Chance of T-Storm |
| Lo: 80°FLo: 27°C | Hi: 91°FHi: 33°C | Lo: 80°FLo: 27°C | Hi: 91°FHi: 33°C | Lo: 80°FLo: 27°C | Hi: 91°FHi: 33°C Lo: 80°FLo: 27°C | Hi: 91°FHi: 33°C Lo: 80°FLo: 27°C | Lo: 80°FLo: 27°C | Hi: 91°FHi: 33°C | Lo: 80°FLo: 27°C | Hi: 91°FHi: 33°C | Lo: 79°FLo: 26°C |
| POP: 20% | POP: 20% | POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1216 AM CDT Sun Aug 16 2026 
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Issued: 1211 AM CDT Sun Aug 16 2026
Key Messages
Updated at 1109 PM CDT Sat Aug 15 2026
- Hot temperatures are expected for much of the forecast. Highs mainly in the upper 90s to the low 100s with heat index values climbing into the lower to mid 110s. Excessive Heat Warnings are in effect for today and an excessive heat watch for Monday. Into the new week at least Heat Advisories are anticipated. The impact of the afternoon highs will be exacerbated by the slightly higher than normal overnight lows.