Monthly Historical AveragesUnion Gap, WA
Average Temperature
High
4°
Feels 3
Low
-4°
Feels -7
Average Precipitation
6 Days
5.9mm
8.1cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastFriday, January 2, 2026
Day
3°Feels 3
Wind
3 km/h S
Gust
8 km/h
Humidity
83%
P.O.P
40%
Rain
<1 mm
Night
0°Feels -2
Wind
6 km/h NW
Gust
9 km/h
Humidity
100%
P.O.P
60%
Rain
<1 mm
Historical AveragesJan 2
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity