Weather forecast for: Union OR
Last Update: 11:46 pm PDT Sep 2, 2026
Overnight: Showers and possibly a thunderstorm. Low around 47. Southeast wind 11 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 65. Light and variable wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night: Showers and possibly a thunderstorm before 2am, then a slight chance of showers between 2am and 5am. Low around 40. Light and variable wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 65. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night: A 40 percent chance of showers, mainly before 11pm. Mostly cloudy, with a low around 38. Light and variable wind.
Saturday: A 30 percent chance of showers, mainly after 11am. Mostly sunny, with a high near 70.
Saturday Night: Partly cloudy, with a low around 39.
Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 73. Chance of precipitation is 30%.
Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 42. Chance of precipitation is 50%.
Labor Day: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 70.
Monday Night: A slight chance of showers. Partly cloudy, with a low around 41.
Tuesday: Mostly sunny, with a high near 76.
Tuesday Night: Partly cloudy, with a low around 43.
Wednesday: Mostly sunny, with a high near 79.