Union, Pennsylvania Weather
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Weather Forecast for Union, Pennsylvania : Lancaster County
Issued: 12:03 pm EDT Apr 29, 2025 Latitude: 39.840939 Longitude: -76.0605057 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Wednesday Thursday Friday Saturday Sunday Monday
Mostly Sunny on This Afternoon 20% chance of thunderstorms on Tonight Mostly Sunny on Wednesday Partly Sunny on Thursday 60% chance of rain on Friday 70% chance of rain on Saturday Mostly Sunny on Sunday 30% chance of on Monday
High: 78°F Low: 63°F High: 73°F High: 73°F High: 82°F High: 72°F High: 64°F High: 66°F
Low: 49°F Low: 58°F Low: 59°F Low: 48°F Low: 48°F  
Mostly Sunny Thunderstorms Mostly Sunny Partly Sunny Rain Rain Mostly Sunny Partly Sunny
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Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 78. South wind around 14 mph, with gusts as high as 25 mph.
20% chance of thunderstorms Tonight Tonight... A slight chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 63. South wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 73. Northwest wind around 10 mph.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 49. Light and variable wind.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 73. Light east wind becoming southeast 5 to 9 mph in the morning.
40% chance of rain Thursday Night Thursday Night... A chance of showers, mainly before 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
60% chance of rain Friday Friday... Showers likely after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
60% chance of rain Friday Night Friday Night... Showers likely, mainly before 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
70% chance of rain Saturday Saturday... Showers likely, mainly after 8am. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.
30% chance of rain Saturday Night Saturday Night... A chance of showers before 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 64.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 48.
30% chance of Monday Monday... A chance of showers. Partly sunny, with a high near 66. Chance of precipitation is 30%.
Sun Almanac for Union, Pennsylvania
Sunrise: 06:06 AM
Sunset: 7:57 PM
Civil Sunrise:05:37 AM
Civil Sunset: 8:26 PM
Nautical Sunrise: 05:02 AM
Nautical Sunset: 9:01 PM
Astro Sunrise: 04:24 AM
Astro Sunset: 9:39 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.