National Weather Service Forecast for: Union NY
Issued by: National Weather Service Binghamton, NY
Updated: 4:57 am EST Dec 20, 2025
 
Overnight

Overnight: A slight chance of snow showers. Mostly cloudy, with a low around 20. Northwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Slight Chance
Snow Showers

 Saturday

Saturday: Mostly cloudy, with a high near 34. Northwest wind 6 to 13 mph becoming south in the afternoon. Winds could gust as high as 24 mph.
Mostly Cloudy

 Saturday
Night
Saturday Night: A slight chance of showers between 1am and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 26. South wind 11 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Mostly Cloudy
then Slight
Chance
Showers
 Sunday

Sunday: Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 30. West wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Snow Showers
Likely

 Sunday
Night
Sunday Night: Snow showers, mainly before 1am. Low around 18. Northwest wind 7 to 14 mph. Chance of precipitation is 80%.
Snow Showers

 Monday

Monday: Partly sunny, with a high near 30.
Partly Sunny

 Monday
Night
Monday Night: Snow showers likely, mainly after 1am. Cloudy, with a low around 23. Chance of precipitation is 70%.
Chance Snow
Showers then
Snow Showers
Likely
 Tuesday

Tuesday: Rain and snow showers. High near 38. Chance of precipitation is 80%.
Rain/Snow

 Tuesday
Night
Tuesday Night: A chance of snow showers. Cloudy, with a low around 26. Chance of precipitation is 50%.
Chance Snow
Showers
Lo 20 °F Hi 34 °F Lo 26 °F Hi 30 °F Lo 18 °F Hi 30 °F Lo 23 °F Hi 38 °F Lo 26 °F

 

Overnight
 
 A slight chance of snow showers. Mostly cloudy, with a low around 20. Northwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Saturday
 
 Mostly cloudy, with a high near 34. Northwest wind 6 to 13 mph becoming south in the afternoon. Winds could gust as high as 24 mph.
Saturday Night
 
 A slight chance of showers between 1am and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 26. South wind 11 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Sunday
 
 Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 30. West wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunday Night
 
 Snow showers, mainly before 1am. Low around 18. Northwest wind 7 to 14 mph. Chance of precipitation is 80%.
Monday
 
 Partly sunny, with a high near 30.
Monday Night
 
 Snow showers likely, mainly after 1am. Cloudy, with a low around 23. Chance of precipitation is 70%.
Tuesday
 
 Rain and snow showers. High near 38. Chance of precipitation is 80%.
Tuesday Night
 
 A chance of snow showers. Cloudy, with a low around 26. Chance of precipitation is 50%.
Wednesday
 
 Mostly cloudy, with a high near 32.
Wednesday Night
 
 A chance of snow showers. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Christmas Day
 
 A chance of rain and snow showers. Cloudy, with a high near 43. Chance of precipitation is 50%.
Thursday Night
 
 A chance of showers. Cloudy, with a low around 34. Chance of precipitation is 50%.
Friday
 
 A chance of rain and snow showers. Cloudy, with a high near 43. Chance of precipitation is 50%.

 

Forecast from NOAA-NWS for Union NY.