Weather WorldUnion County, OR Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Union County Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | TUESDAY | WEDNESDAY |
 |  |  | |  |  | | | | | |
| Patchy Fog | Clearing | Mostly Clear | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Lo: 43°FLo: 6°C | Hi: 77°FHi: 25°C | Lo: 47°FLo: 8°C | Hi: 81°FHi: 27°C | Lo: 47°FLo: 8°C | Hi: 81°FHi: 27°C Lo: 46°FLo: 8°C | Hi: 81°FHi: 27°C Lo: 46°FLo: 8°C | Hi: 87°FHi: 31°C Lo: 50°FLo: 10°C | Hi: 87°FHi: 31°C Lo: 50°FLo: 10°C | Hi: 80°FHi: 27°C Lo: 46°FLo: 8°C | Hi: 80°FHi: 27°C Lo: 46°FLo: 8°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 302 PM PDT Wed Sep 30 2026 
Union County Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Union County Weather Map
Union County Quick Facts
Union County Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 327 PM PDT Wed Sep 30 2026
Key Messages
- Ridge building into the area, allowing warmer temperatures to build with dry conditions over the area.
- Temperatures will gradually warm 5 to 15 degrees above average by the weekend (70-80% chance).
- Light and variable winds with diurnal speeds prevail through the week.
Discussion
... Satellite shows mid to upper level clouds across the central part of the CWA. Not much else to talk on that since we`re not anticipating any precipitation with zonal flow aloft promoting dry conditions. Goi...