Weather World
Winchester, WI Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Winchester Weather Forecast
| REST OF THE NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  | |  |  |  | |  | | | |
| Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of Showers | Mostly Cloudy | Clear | Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Clear | Clear |
| Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 61°FLo: 16°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Hi: 59°FHi: 15°C Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C Lo: 39°FLo: 4°C |
| POP: 100% | POP: 50% | POP: 40% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 122 AM CDT Wed Sep 30 2026 
Winchester Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Winchester Weather Map
Winchester Quick Facts
Winchester Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 130 AM CDT Wed Sep 30 2026
Key Messages
- Rain is expected to continue at times through Thursday. Total rainfall amounts between 0.5 and 1" are forecast for portions of central to east-central Wisconsin.
- Strong southerly winds will result in hazardous swimming and boating conditions on Lake Michigan through this evening.
- Patchy frost will be possible at times across northern Wisconsin later this week as a cooler and drier airmass settles in.
Discussion
... Issued at 100 AM CDT Wed Sep 30 2026
Rain chances through Thursday... Ra...