Weather forecast for: Union OR
Last Update: 4:01 am PDT Oct 19, 2026
Today: Mostly sunny, with a high near 71. South wind around 7 mph becoming northwest in the afternoon.
Tonight: Increasing clouds, with a low around 36. Northwest wind around 6 mph becoming calm after midnight.
Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 70. Calm wind.
Tuesday Night: Partly cloudy, with a low around 38. Calm wind.
Wednesday: Mostly sunny, with a high near 73. Light southeast wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night: A 50 percent chance of showers and thunderstorms after 11pm. Mostly cloudy, with a low around 41.
Thursday: Showers and possibly a thunderstorm. High near 61. Chance of precipitation is 90%.
Thursday Night: Showers likely, mainly before 11pm. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Friday: A 20 percent chance of showers before 11am. Mostly sunny, with a high near 52.
Friday Night: Mostly clear, with a low around 24.
Saturday: Mostly sunny, with a high near 54.
Saturday Night: A chance of showers. Mostly cloudy, with a low around 31. Breezy.
Sunday: A chance of showers. Partly sunny, with a high near 58.