10-day forecast for Union, WA: 37° to 58°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
58°
Best day: Tuesday, November 3
49° · 0.35 in
Worst day: Thursday, October 29
Tap any day below to see morning, afternoon, evening and overnight.
Thu, 2949° / 42°0.35
Morning44°feels 44°
Afternoon48°feels 48°
Evening43°feels 43°
Overnight44°feels 44°
49 °
Union, Thursday, 29 October
Rain. High 49°, low 42°.
Pressure30.00 inHg
Wind1.1 mph E
Humidity94%
Visibility2.7 mi
Dew point43°
Fri, 3048° / 41°0.14
Morning41°feels 41°
Afternoon47°feels 47°
Evening42°feels 42°
Overnight41°feels 41°
48 °
Union, Friday, 30 October
Rain. High 48°, low 41°.
Pressure29.94 inHg
Wind1 mph E
Humidity90%
Visibility5.0 mi
Dew point44°
Sat, 3156° / 37°0
Morning37°feels 37°
Afternoon55°feels 52°
Evening43°feels 43°
Overnight40°feels 40°
56 °
Union, Saturday, 31 October
Clear. High 56°, low 37°.
Pressure30.03 inHg
Wind2.2 mph NE
Humidity82%
Visibility6.2 mi
Dew point44°
Sun, 0153° / 37°0
Morning37°feels 37°
Afternoon53°feels 52°
Evening49°feels 47°
Overnight40°feels 40°
53 °
Union, Sunday, 1 November
Mostly clear. High 53°, low 37°.
Pressure30.18 inHg
Wind2.9 mph SE
Humidity71%
Visibility0.2 mi
Dew point40°
Mon, 0255° / 40°0
Morning42°feels 42°
Afternoon48°feels 48°
Evening50°feels 49°
Overnight43°feels 43°
55 °
Union, Monday, 2 November
Overcast. High 55°, low 40°.
Pressure30.30 inHg
Wind2.4 mph NE
Humidity76%
Visibility—
Dew point39°
Tue, 0358° / 41°0
Morning45°feels 44°
Afternoon52°feels 49°
Evening52°feels 50°
Overnight43°feels 42°
58 °
Union, Tuesday, 3 November
Overcast. High 58°, low 41°.
Pressure30.21 inHg
Wind6.5 mph NE
Humidity55%
Visibility—
Dew point34°
Wed, 0457° / 42°0
Morning45°feels 43°
Afternoon52°feels 49°
Evening51°feels 49°
Overnight46°feels 46°
57 °
Union, Wednesday, 4 November
Overcast. High 57°, low 42°.
Pressure29.94 inHg
Wind3.6 mph E
Humidity56%
Visibility—
Dew point35°
Thu, 0555° / 43°0
Morning45°feels 45°
Afternoon51°feels 48°
Evening50°feels 48°
Overnight45°feels 45°
55 °
Union, Thursday, 5 November
Overcast. High 55°, low 43°.
Pressure29.91 inHg
Wind2.3 mph S
Humidity58%
Visibility—
Dew point35°
Fri, 0656° / 43°0
Morning46°feels 46°
Afternoon52°feels 50°
Evening53°feels 51°
Overnight49°feels 48°
56 °
Union, Friday, 6 November
Light rain. High 56°, low 43°.
Pressure29.80 inHg
Wind2.8 mph NE
Humidity60%
Visibility—
Dew point37°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Union, WA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.