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Isle of Ferns Park Weather Forecast
| THIS AFTERNOON | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY |
 |  |  |  | | | | | | | | |
| Mostly Sunny | Clear | Partly Cloudy | Chance of T-Storm | Partly Cloudy | Mostly Clear | Mostly Clear | Clear | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy |
| Hi: 79°FHi: 26°C | Lo: 49°FLo: 9°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C Lo: 50°FLo: 10°C | Hi: 79°FHi: 26°C Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C Lo: 59°FLo: 15°C |
| POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 122 PM CDT Wed Aug 19 2026 
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Issued: 202 PM CDT Wed Aug 19 2026
Key Messages
- Chance (40-70%) of showers and storms returns on Thursday across north- central and far northeast WI.
- Rain won`t arrive until Thursday night across east-central WI with rain chances lingering across the entire area on Friday.
- A drought busting rain is not expected.
- Another cool night across the north, but not as cool as this morning with lows in the 40s. Seasonable temps expected into the weekend, although some cool nights are possible over the north.