National Weather Service Forecast for: Union NY
Issued by: National Weather Service Binghamton, NY
Updated: 6:08 am EST Dec 18, 2025
 
Today

Today: Mostly sunny, with a high near 42. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 33 mph.
Mostly Sunny
then Mostly
Sunny and
Breezy
 Tonight

Tonight: Rain, mainly after midnight. Low around 41. Breezy, with a south wind around 22 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Breezy.
Chance Rain
then Rain
 Friday

Friday: Rain before 10am, then snow showers, possibly mixed with rain between 10am and 1pm, then snow showers likely after 1pm. Temperature falling to around 26 by 5pm. Breezy, with a west wind 16 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Rain/Snow and
Breezy

 Friday
Night
Friday Night: A chance of snow showers, mainly before 1am. Mostly cloudy, with a low around 20. Breezy, with a west wind 18 to 23 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 44 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Chance Snow
Showers and
Breezy
 Saturday

Saturday: Partly sunny, with a high near 35. West wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Partly Sunny

 Saturday
Night
Saturday Night: A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.
Chance Snow
Showers

 Sunday

Sunday: Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 32. Chance of precipitation is 60%.
Snow Showers
Likely

 Sunday
Night
Sunday Night: A chance of snow showers. Mostly cloudy, with a low around 15. Chance of precipitation is 50%.
Chance Snow
Showers

 Monday

Monday: Partly sunny, with a high near 23.
Partly Sunny
Hi 42 °F Lo 41 °F Hi 44 °F⇓ Lo 20 °F Hi 35 °F Lo 24 °F Hi 32 °F Lo 15 °F Hi 23 °F

Hazardous Weather Outlook
Wind Advisory
 

Today
 
 Mostly sunny, with a high near 42. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 33 mph.
Tonight
 
 Rain, mainly after midnight. Low around 41. Breezy, with a south wind around 22 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
 
 Rain before 10am, then snow showers, possibly mixed with rain between 10am and 1pm, then snow showers likely after 1pm. Temperature falling to around 26 by 5pm. Breezy, with a west wind 16 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Friday Night
 
 A chance of snow showers, mainly before 1am. Mostly cloudy, with a low around 20. Breezy, with a west wind 18 to 23 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 44 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Saturday
 
 Partly sunny, with a high near 35. West wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
 
 A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.
Sunday
 
 Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 32. Chance of precipitation is 60%.
Sunday Night
 
 A chance of snow showers. Mostly cloudy, with a low around 15. Chance of precipitation is 50%.
Monday
 
 Partly sunny, with a high near 23.
Monday Night
 
 A chance of snow showers after 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 40%.
Tuesday
 
 Rain and snow showers likely. Mostly cloudy, with a high near 34. Chance of precipitation is 70%.
Tuesday Night
 
 A chance of rain and snow showers. Mostly cloudy, with a low around 25. Chance of precipitation is 50%.
Wednesday
 
 A chance of snow showers. Mostly cloudy, with a high near 31. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Union NY.