Union, WA Weather Forecast

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Union WA weather  - Mist - 52°F
Mist
52°F
Updated 4:10 am
Feels Like 45°F
Humidity 96%
Wind N 0 mph
Barometer  30.11 in
Dew Point 51°F
Union WA weather  - Mist - 11°C
Mist
11°C
Updated 4:10 am
Feels Like 7°C
Humidity 96%
Wind N 0 km/h
Barometer  102 kPa
Dew Point 11°C

Union Weather Forecast

TODAY TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT COLUMBUS DAY MONDAY NIGHT
Union, WA Weather - Today Sunny Union, WA Weather - Tonight Mostly Clear Union, WA Weather - Thursday Mostly Sunny Union, WA Weather - Thursday Night Mostly Cloudy Union, WA Weather - Friday Chance Of Rain Union, WA Weather - Friday Night Partly Cloudy Union, WA Weather - Saturday Chance Of Rain Union, WA Weather - Saturday Night Partly Cloudy Union, WA Weather - Sunday Sunny Union, WA Weather - Sunday Night Mostly Clear Union, WA Weather - Columbus Day Sunny Union, WA Weather - Monday Night Chance Of Rain
Sunny Mostly Clear Mostly Sunny Mostly Cloudy Chance of Rain Partly Cloudy Chance of Rain Partly Cloudy Sunny Mostly Clear Sunny Chance of Rain
Hi: 70°FHi: 21°C
Lo: 46°FLo: 8°C Hi: 70°FHi: 21°C
Lo: 50°FLo: 10°C Hi: 63°FHi: 17°C
Lo: 40°FLo: 4°C Hi: 60°FHi: 16°C
Lo: 40°FLo: 4°C Hi: 61°FHi: 16°C
Lo: 40°FLo: 4°C Hi: 61°FHi: 16°C
Lo: 43°FLo: 6°C
POP = Probability of Precipitation.
Weather Outlook Updated: 236 AM PDT Wed Oct 07 2026 Union, WA Weather - WeatherWorld.com

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Issued: 132 AM PDT Wed Oct 7 2026

Aviation

... Upper level ridging will remain over the region with westerly flow aloft becoming more northwesterly by tonight. Low clouds/fog have already developed across Puget Sound this morning and have brought IFR to LIFR conditions to the majority of the Puget Sound terminals. Elsewhere, conditions remain VFR. Expect fog to continue to expand in coverage through the early morning hours and for predominantly IFR to LIFR conditions to persist through late morning. Fog will then gradually scatte...