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Lower Island Lake, WI Weather Forecast
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Lower Island Lake Weather Forecast
| EARLY THIS MORNING | TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  |  |  | |  | | | |  |  |
| Clear | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Clear | Clear | Mostly Clear | Mostly Clear | Chance of Showers | Chance of Showers |
| Hi: 50°FHi: 10°C | Hi: 80°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°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: 55°FLo: 13°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C |
| POP: 70% | POP: 60% | POP: 40% | POP: 40% | POP: 30% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 427 AM CDT Thu Aug 20 2026 
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Issued: 653 AM CDT Thu Aug 20 2026
Key Messages
- Shower/storm chances (20-50%) arrive this afternoon across north-central WI, spreading across the entire area tonight (40-75%). Isolated-scattered showers/storms on Friday.
- While a few stronger storms could produce brief gusty winds, small hail and brief heavy downpours, widespread severe weather is not expected. A drought busting rain is not expected.
- Near seasonable temps expected into next week, although some cool nights are expected over the north.