Mountain, WI Weather Forecast
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| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
| Chance of T-Storm | Patchy Fog | Clear | Mostly Sunny | Mostly Clear | Partly Sunny | Chance of Showers | Showers | Showers Likely | Mostly Clear | Mostly Clear | Partly Cloudy |
| Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C Lo: 49°FLo: 9°C |
| POP: 20% | POP: 40% | POP: 70% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 617 PM CDT Fri Sep 04 2026 

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Issued: 649 PM CDT Fri Sep 4 2026
Key Messages
- Very low chance (less than 25%) of isolated thunderstorms late this afternoon into this evening. If storms develop, they could become strong with strong winds and hail.
- Fog is expected to develop overnight. Patchy dense fog is possible.
- Dry conditions for Labor Day weekend. Rain/storm chances return late Monday through midweek.
Discussion
... Issued at 225 PM CDT Fri Sep 4 2026
Today through tonight...Dry conditions prevailed across the area this afternoon under an area of low clouds. M...
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