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Union, WA Weather Forecast


Union, WA Weather Forecast Dated: 1238 AM Wed Oct 07 2026
Expect a cool pattern with plenty of sunshine and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.
Wednesday, October 7, 2026
Mid-Morning
60°F 16°C
Sunny
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
53°F 12°C
Sunny
Pleasant near 73°F 23°C, sunny throughout the day, with increasing humidity and steady pressure.
Thursday, October 8, 2026
Mid-Morning
61°F 16°C
Cloudy
Mid-Afternoon
73°F 23°C
Overcast
Early-Evening
53°F 11°C
Overcast
Comfortable with temperatures reaching 73°F 23°C, cloudy in the morning, becoming overcast through the afternoon and evening, with increasing humidity and barometric pressure falling.
Friday, October 9, 2026
Mid-Morning
55°F 13°C
Partly Cloudy
Mid-Afternoon
55°F 13°C
Partly Cloudy
Early-Evening
44°F 7°C
Scattered Showers
Chilly near 55°F 13°C, locally heavy downpours at times, with lower humidity and steady pressure.
Saturday, October 10, 2026
Mid-Morning
47°F 8°C
Sunny
Mid-Afternoon
55°F 13°C
Scattered Showers
Early-Evening
40°F 5°C
Sunny
Crisp with a high near 55°F 13°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.
Sunday, October 11, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
60°F 15°C
Sunny
Early-Evening
45°F 7°C
Sunny
Refreshing around 60°F 15°C, sunny throughout the day, with increasing humidity and steady pressure.
Monday, October 12, 2026
Mid-Morning
43°F 6°C
Overcast
Mid-Afternoon
62°F 17°C
Partly Cloudy
Early-Evening
48°F 9°C
Cloudy
Mildly cool near 62°F 17°C, overcast in the morning, becoming cloudy through the afternoon and evening, with increasing humidity and barometric pressure falling.
Tuesday, October 13, 2026
Mid-Morning
48°F 9°C
Drizzle
Mid-Afternoon
50°F 10°C
Scattered Showers
Early-Evening
40°F 5°C
Sunny
Chilly near 50°F 10°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure.
Wednesday, October 14, 2026
Mid-Morning
39°F 4°C
Sunny
Mid-Afternoon
55°F 13°C
Cloudy
Early-Evening
43°F 6°C
Partly Cloudy
Crisp with a high near 55°F 13°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.
Thursday, October 15, 2026
Mid-Morning
40°F 4°C
Partly Cloudy
Mid-Afternoon
59°F 15°C
Sunny
Early-Evening
45°F 7°C
Partly Cloudy
Refreshing around 59°F 15°C, cloudy through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.
Friday, October 16, 2026
Mid-Morning
43°F 6°C
Overcast
Mid-Afternoon
57°F 14°C
Partly Cloudy
Early-Evening
44°F 7°C
Sunny
Cool and brisk at 57°F 14°C, overcast in the morning, cloudy in the afternoon, and sunny this evening, with increasing humidity and steady pressure.
Saturday, October 17, 2026
Mid-Morning
45°F 7°C
Sunny
Mid-Afternoon
63°F 17°C
Sunny
Early-Evening
50°F 10°C
Sunny
Comfortable at 63°F 17°C, sunny throughout the day, with increasing humidity and barometric pressure falling.
Sunday, October 18, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
68°F 20°C
Sunny
Early-Evening
54°F 12°C
Sunny
Comfortable with temperatures reaching 68°F 20°C, sunny throughout the day, with increasing humidity and steady pressure.
Monday, October 19, 2026
Mid-Morning
52°F 11°C
Sunny
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
55°F 13°C
Sunny
Enjoyable around 70°F 21°C, sunny throughout the day, with increasing humidity and steady pressure.
Tuesday, October 20, 2026
Mid-Morning
53°F 12°C
Overcast
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
56°F 13°C
Sunny
Mild temperatures up to 70°F 21°C, overcast in the morning, becoming sunny through the afternoon and evening, with increasing humidity and steady pressure.
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