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Borough of Mount Union, PAMount Union, PA Weather Forecast
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Mount Union Weather Forecast
| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
 |  |  |  | | | |  | | | | |
| Showers Likely | Chance of Showers | Sunny | Mostly Cloudy | Chance of Showers | Mostly Cloudy | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear |
| Hi: 80°FHi: 27°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 39°FLo: 4°C | Hi: 60°FHi: 16°C | Lo: 39°FLo: 4°C | Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C |
| POP: 70% | POP: 40% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1030 AM EDT Fri Oct 02 2026 
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Issued: 725 AM EDT Fri Oct 2 2026
Key Messages
1) A cold frontal passage today will bring a few to several hour period of showers in most places, followed by a weekend cooldown and a frost/freeze risk early next week
2) Not much rain expected for the first 10 days of October
Discussion
... KEY MESSAGE 1: A cold frontal passage today will bring a few to several hour period of showers in most places, followed by a weekend cooldown and a frost/freeze risk early next week
Our recent warm spell (with daytime high temps some 8 to 12 deg F ...