National Weather Service Forecast for: Union NY
Issued by: National Weather Service Binghamton, NY
Updated: 2:30 pm EDT Jul 28, 2026
 
Tonight

Tonight: Showers and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms between 10pm and 2am, then a chance of showers after 2am. Low around 60. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Showers then
Chance
Showers
 Wednesday

Wednesday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 71. Northwest wind 3 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Showers

 Wednesday
Night
Wednesday Night: Showers and thunderstorms likely before 2am, then a chance of showers. Cloudy, with a low around 58. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely
 Thursday

Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 74. North wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely
 Thursday
Night
Thursday Night: Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 57. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Showers
Likely then
Partly Cloudy
 Friday

Friday: Sunny, with a high near 78.
Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 58.
Partly Cloudy

 Saturday

Saturday: Mostly sunny, with a high near 82.
Mostly Sunny

 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 63.
Mostly Cloudy
Lo 60 °F Hi 71 °F Lo 58 °F Hi 74 °F Lo 57 °F Hi 78 °F Lo 58 °F Hi 82 °F Lo 63 °F

Hazardous Weather Outlook
 

Tonight
 
 Showers and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms between 10pm and 2am, then a chance of showers after 2am. Low around 60. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
 
 Showers likely, then showers and possibly a thunderstorm after 11am. High near 71. Northwest wind 3 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
 
 Showers and thunderstorms likely before 2am, then a chance of showers. Cloudy, with a low around 58. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
 
 A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 74. North wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
 
 Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 57. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Friday
 
 Sunny, with a high near 78.
Friday Night
 
 Partly cloudy, with a low around 58.
Saturday
 
 Mostly sunny, with a high near 82.
Saturday Night
 
 Mostly cloudy, with a low around 63.
Sunday
 
 Showers likely, mainly after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Sunday Night
 
 Showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Monday
 
 A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 40%.
Monday Night
 
 Mostly cloudy, with a low around 60.
Tuesday
 
 Mostly sunny, with a high near 80.

 

Forecast from NOAA-NWS for Union NY.