Weather WorldSummit Lake, IN Weather Forecast
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Summit Lake Weather Forecast
| THIS AFTERNOON | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
 |  |  |  | | |  | | |  | | |
| Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Mostly Clear | Clearing | Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Chance of T-Storm | Chance of T-Storm |
| Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C |
| POP: 50% | POP: 50% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1128 AM EDT Fri Aug 21 2026 
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Summit Lake Forecast Discussion
Issued: 630 AM EDT Fri Aug 21 2026
Key Messages
- Periodic showers and storms are expected today through Saturday. An isolated strong storm capable of gusty winds and brief heavy rain is possible west of US-31 this evening and east of I-69 Saturday afternoon.
- It will be breezy this weekend with gusts up to 30 mph and highs only in the mid/upper 70s. These gusty winds will lead to dangerous swimming conditions on Lake Michigan beaches.
- Dry and tranquil weather is anticipated Monday and Tuesday.
Discussion
... Issued at 115 AM EDT Fri A...