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Washington Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 | |  |  | |  |  | | | | |  |
| Patchy Fog | Patchy Fog | Mostly Clear | Sunny | Mostly Clear | Partly Sunny | Chance of Showers | Mostly Sunny | Clear | Mostly Clear | Mostly Clear | Partly Cloudy |
| Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 35°FLo: 2°C | Hi: 60°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 59°FHi: 15°C | Lo: 31°FLo: -1°C | Hi: 55°FHi: 13°C Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C Lo: 35°FLo: 2°C | Hi: 61°FHi: 16°C Lo: 45°FLo: 7°C |
| POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 918 PM CDT Wed Sep 30 2026 
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Issued: 953 PM CDT Wed Sep 30 2026
Key Messages
- Another round of rain is expected tonight into Thursday. Total rainfall amounts up to about 0.5 inches are forecast for portions of central to east-central Wisconsin.
- Persistent 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 late this week into the weekend. Greatest chance for a freeze is Sunday night across northern WI.
Discussion
... Issued at 1203 PM CDT ...