Mongo, IN Weather Forecast
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| REST OF TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
| Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Clear | Sunny | Mostly Clear | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 60°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C |
| POP: 50% | POP: 40% | POP: 20% | POP: 20% | POP: 20% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 227 AM EDT Tue Sep 08 2026 

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Issued: 301 AM EDT Tue Sep 8 2026
Key Messages
- Slightly warmer and more humid this afternoon with high temperatures in the low-to-mid 80s.
- There is a 40% to 60% chance of showers and thunderstorms Wednesday through early Thursday morning.
- Breaking waves and currents are expected at southeast Lake Michigan beaches on Thursday.
Discussion
... Issued at 300 AM EDT Tue Sep 8 2026
High pressure remains in place today, currently centered over PA, while plenty of high clouds are filtering in from low pressure over the Dakotas. The combinat...
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