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Greendale, WI Weather Forecast
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Greendale Weather Forecast
| REST OF TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
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| Thunderstorms | Thunderstorms | Thunderstorms | Chance of Showers | Mostly Cloudy | Cloudy | Mostly Cloudy | Partly Sunny | Partly Cloudy | Partly Sunny | Partly Cloudy | Partly Sunny |
| Lo: 60°FLo: 16°C | Hi: 69°FHi: 21°C | Lo: 60°FLo: 16°C | Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 61°FHi: 16°C | Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C | Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C |
| POP: 100% | POP: 100% | POP: 80% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 132 AM CDT Sat Sep 19 2026 
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Issued: 1050 PM CDT Fri Sep 18 2026
Key Messages
- Heavy rainfall moving into southern Wisconsin tonight into Saturday morning (peak coverage between 1 AM & 10 AM). Urban/small stream flooding, ponding of water, and minor rises on area rivers are expected areawide. Areas of flash flooding are possible mainly west of a Kenosha-Watertown-Wisconsin Dells line. Widespread 1 to 3 inch rain totals remain expected, with higher totals between 3-6"+ possible in areas that storms track repeatedly.
- Additional storm development possible Saturday...