Union School, DE Weather Forecast
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Union School Weather Forecast
| REST OF TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
| Chance of Showers | Chance of T-Storm | Mostly Sunny | Partly Cloudy | Mostly Sunny | Mostly Cloudy | Chance of Showers | Chance of T-Storm | Partly Sunny | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy |
| Hi: 85°FHi: 29°C | Lo: 70°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 75°FHi: 24°C | Lo: 61°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 61°FLo: 16°C |
| POP: 20% | POP: 20% | POP: 50% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 936 AM EDT Thu Sep 17 2026 

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Issued: 249 PM EDT Thu Sep 17 2026
Key Messages
1. A cold front crosses the area overnight with showers.
2. A series of cold fronts and low pressure systems will bring unsettled weather to the area starting Saturday night and continuing through at least Tuesday. Heavy rain from time to time is possible.
Discussion
...
A cold front crosses the area overnight with showers.
The latest surface map shows a weak area of low pressure across New York State and a cold front into Pennsylvania. A mild and increasingly flow ahead of these features...
Weather World