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Neptune Lake, WI Weather Forecast
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Neptune Lake Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY | SATURDAY NIGHT |
 |  |  |  |  |  | | |  | | | |
| Chance of T-Storm | Patchy Fog | Mostly Clear | Partly Cloudy | Mostly Cloudy | Partly Sunny | Mostly Clear | Partly Cloudy | Chance of Showers | Partly Cloudy | Partly Cloudy | Mostly Clear |
| Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C | Lo: 59°FLo: 15°C | Hi: 85°FHi: 29°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C Lo: 59°FLo: 15°C | Lo: 59°FLo: 15°C |
| POP: 40% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 702 PM CDT Sun Aug 30 2026 
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Issued: 651 PM CDT Sun Aug 30 2026
Key Messages
- Isolated showers/storms this afternoon into tonight. Small chance (10-20%) for showers and storms on Monday, but if storms develop, they may become strong or severe.
- Hazardous boating and swimming conditions on Lake Michigan through this afternoon and could return on Monday. Dense fog possible on Lake Michigan on Monday.
- Warm, humid conditions continue into Monday, with heat indices in the 90s expected Monday afternoon.
Discussion
... Issued at 137 PM CDT Sun Aug 30 2026
Precipitation/S...