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Union, OR Weather Forecast

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Union, OR Weather Forecast

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Union OR weather - Mostly Clear - 63°F
Mostly Clear
63°F
Updated 2:44 pm
Feels Like 54°F
Humidity 51%
Wind S 6 mph
Barometer  29.85 in
Dew Point 45°F
Union OR weather - Mostly Clear - 17°C
Mostly Clear
17°C
Updated 2:44 pm
Feels Like 12°C
Humidity 51%
Wind S 10 km/h
Barometer  101 kPa
Dew Point 7°C
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Union Weather Forecast

REST OF TODAY TONIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT LABOR DAY MONDAY NIGHT TUESDAY WEDNESDAY
Union, OR Weather - Rest Of Today Rain Showers Union, OR Weather - Tonight Rain Showers Union, OR Weather - Friday Chance Of T-Storm Union, OR Weather - Friday Night Chance Of Showers Union, OR Weather - Saturday Chance Of Showers Union, OR Weather - Saturday Night Partly Cloudy Union, OR Weather - Sunday Chance Of T-Storm Union, OR Weather - Sunday Night Chance Of T-Storm Union, OR Weather - Labor Day Chance Of Showers Union, OR Weather - Monday Night Chance Of Showers Union, OR Weather - Tuesday Partly Cloudy Union, OR Weather - Wednesday Partly Cloudy
Rain Showers Rain Showers Chance of T-Storm Chance of Showers Chance of Showers Partly Cloudy Chance of T-Storm Chance of T-Storm Chance of Showers Chance of Showers Partly Cloudy Partly Cloudy
Hi: 56°FHi: 13°C
 Lo: 36°FLo: 2°C Hi: 60°FHi: 16°C
 Lo: 40°FLo: 4°C Hi: 63°FHi: 17°C
 Lo: 40°FLo: 4°C Hi: 69°FHi: 21°C
 Lo: 45°FLo: 7°C Hi: 60°FHi: 16°C
 Lo: 43°FLo: 6°C Hi: 70°FHi: 21°C
Lo: 45°FLo: 7°C		 Hi: 70°FHi: 21°C
Lo: 45°FLo: 7°C
POP: 50% POP: 100% POP: 50% POP: 50% POP: 50% POP: 50% POP: 70% POP: 50% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 1133 AM PDT Thu Sep 03 2026 Union, OR Weather - WeatherWorld.com

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Issued: 1052 AM PDT Thu Sep 3 2026

Key Messages

  • Periodic shower chances (35-85%) across the mountain zones will continue through the weekend, with lower chances in the lower elevations
  • Isolated thunderstorm chances (15-25%) will develop across Cascades, Blues, and Wallowa county Today and Friday
  • Below normal temperatures through early next week, with potential for freezing temperatures in mountain valleys tonight and Friday night

Discussion

... Water vapor satellite imagery tonight shows a shortwave trough lifting northeast across t...