Monthly Historical AveragesGrand Coulee, WA
Average Temperature
High
1°
Feels -1
Low
-5°
Feels -8
Average Precipitation
6 Days
2.8mm
10.7cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, January 11, 2026
Day
4°Feels 2
Wind
7 km/h E
Gust
11 km/h
Humidity
70%
P.O.P
40%
Rain
1-3 mm
Night
0°Feels -2
Wind
8 km/h E
Gust
12 km/h
Humidity
93%
P.O.P
30%
Historical AveragesJan 11
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity