Harrison Park, IN Weather Forecast
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Harrison Park 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 | Mostly Sunny | Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Chance of T-Storm | Chance of T-Storm |
| Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°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 | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C |
| POP: 60% | POP: 40% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1128 AM EDT Fri Aug 21 2026 

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Harrison Park Forecast Discussion
Issued: 215 PM EDT Fri Aug 21 2026
Key Messages
- Isolated showers and storms possible east of I-69 this afternoon and evening.
- 30-60% chances for scattered rain and storms arrive tonight 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.
- Dangerous swimming conditions expected for southeast Lake Michigan beaches on Saturday and Sunday with High Swim risks both days. Northwest winds will gust to 30 mph with waves of 3 to 5 ...
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