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City of Harrisville, MIHarrisville, MI Weather Forecast
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| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
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| Chance of Showers | Chance of Showers | Partly Sunny | Partly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Sunny | Partly Cloudy | Partly Sunny | Partly Cloudy | Partly Sunny | Partly Cloudy |
| Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 59°FHi: 15°C | Lo: 41°FLo: 5°C | Hi: 60°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C |
| POP: 30% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 712 AM EDT Sat Sep 19 2026 
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Issued: 539 AM EDT Sat Sep 19 2026
Key Messages
- Light rainfall continues to spread across Michigan`s lower penisula this afternoon.
-High pressure supports quiet weather this week with seasonably normal temperatures.
Discussion
... Issued at 249 AM EDT Sat Sep 19 2026
Pattern Synopsis: Midlevel flow remains somewhat zonal across the Great Lakes Region with upstream weak troughing over the Northwestern United States. Surface low pressure currently over the central CONUS will progress northeast across the Ohio Valley this afternoon/even...