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Mill Lake, IN Weather Forecast
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Mill Lake Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  | |  |  |  | | |  | |  | |
| Sunny | Partly Cloudy | Sunny | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Partly Cloudy | Partly Sunny | Partly Cloudy |
| Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C |
| POP: 20% | POP: 50% | POP: 50% | POP: 40% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 307 AM CDT Sat Sep 19 2026 
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Issued: 711 AM EDT Sat Sep 19 2026
Key Messages
- Unseasonably hot weather will continue for much of the area through at least Sunday. Barring any early day thunderstorms, heat indices will top out in the mid 90s to around 105 (highest southwest) each afternoon.
- There is a 30-50% chance (highest northeast) for showers and storms late this afternoon and evening, with slightly lower chances tomorrow. Locally damaging wind gusts and heavy rainfall may accompany the strongest storms.
- A weather system will bring higher rain chances (50-7...