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Big Oak Lake Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | TUESDAY |
 |  |  |  |  |  | | | | | | |
| Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Mostly Clear | Clear | Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 70°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 95°FHi: 35°C Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C Lo: 71°FLo: 22°C |
| POP: 50% | POP: 40% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 837 PM CDT Tue Aug 25 2026 
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Issued: 403 PM CDT Tue Aug 25 2026
Key Messages
- Isolated to scattered showers and thunderstorms (30-50% chance) are possible Wednesday into early Thursday morning. There is a low risk of severe weather Wednesday afternoon into Wednesday night, mainly over southeast Missouri. Damaging winds is the main concern.
- Hot temperatures and higher humidity levels return Sunday into early next week, with heat index values near 100 degrees. Unlike the previous heat wave, this will be a much drier heat with high temperatures warming well into ...