Weather WorldOak Lake, IN Weather Forecast
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Oak Lake Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  | |  | | | | | |  |  | |
| Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C |
| POP: 20% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 407 AM EDT Sun Aug 30 2026 
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Issued: 653 AM EDT Sun Aug 30 2026
Key Messages
- Heat and humidity continue to build for the end of the weekend into the start of next week. There is a 60-70% probability of reaching Heat Advisory criteria by the middle of the week.
- Major Heat Risk possible due to the multi-day duration of hot temperatures and little overnight relief. Anyone without effective cooling or adequate hydration will be susceptible to heat illness.
- A few shower and storm chances may return by late week, but current confidence is low.
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