Onalaska Park, WI Weather Forecast
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Onalaska Park Weather Forecast
| OVERNIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | FRIDAY | FRIDAY NIGHT | SATURDAY |
| Chance of T-Storm | Patchy Fog | Partly Cloudy | Mostly Sunny | Chance of Showers | Chance of Showers | Chance of Showers | Partly Cloudy | Partly Cloudy | Chance of Showers | Partly Cloudy | Partly Cloudy |
| Lo: 70°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C | Hi: 81°FHi: 27°C Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C Lo: 59°FLo: 15°C |
| POP: 20% | POP: 50% | POP: 50% | POP: 50% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1112 PM CDT Sat Aug 15 2026 

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Issued: 1245 AM CDT Sun Aug 16 2026
Key Messages
- Drier conditions are expected today into Monday with near- normal highs in the upper 70s to low 80s.
- Shower and storm potential returns Monday night into Tuesday morning (30-50%) and Tuesday afternoon into Wednesday (30-60%), though better chances have begun to trend southward.
- Periodic chances for showers and storms exist through the end of next week.
Discussion
... Issued at 1245 AM CDT Sun Aug 16 2026
Today - Monday: Drier, Near Normal Temperatures
A weak...
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