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Upper First Lake, WI Weather Forecast
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Upper First Lake Weather Forecast
| REST OF THE NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
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| Chance of Showers | Chance of T-Storm | Chance of T-Storm | Clearing | Clear | Clear | Clear | Mostly Sunny | Showers | Mostly Clear | Mostly Clear | Chance of Showers |
| Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 65°FLo: 18°C | Hi: 75°FHi: 24°C | Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C |
| POP: 50% | POP: 90% | POP: 40% | POP: 70% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 122 AM CDT Tue Sep 08 2026 
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Issued: 1248 AM CDT Tue Sep 8 2026
Key Messages
- Rain and storms chances (60-80%) early this morning through late late tonight. A few strong storms are possible this morning and again this evening and night.
- Gusty winds and high waves today through Wednesday will result in hazardous conditions to small craft. There will also be an increased risk of rip currents at Lake Michigan beaches Tuesday into Wednesday morning.
- Temperatures at or above normal continue into the weekend.
Discussion
... Issued at 1247 AM CDT Tue Sep 8 2026
Storm Ch...