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Winterthur Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
 |  |  |  | | | | |  | | | |
| Chance of T-Storm | Partly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny |
| Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 70°FLo: 21°C | Hi: 89°FHi: 32°C |
| POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 400 PM EDT Fri Sep 04 2026 
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Issued: 728 PM EDT Fri Sep 4 2026
Key Messages
1. A round of showers and thunderstorms this evening into the overnight period.
2. Mainly dry and comfortable weather expected for Labor Day Weekend.
3. A cold front will pass through on Thursday bringing the potential for another round of showers and storms.
Discussion
... KEY MESSAGE 1... A round of showers and thunderstorms this evening into the overnight period.
Another short wave moving eastward across the Appalachians this evening will continue to progress through MD/VA tonight. It ...