Monthly Historical AveragesGrinnell, WA
Average Temperature
High
13°
Feels 11
Low
2°
Feels -1
Average Precipitation
10 Days
32.9mm
0.9cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSaturday, April 4, 2026
Day
17°Feels 17
Wind
10 km/h E
Gust
15 km/h
Humidity
36%
P.O.P
0%
Night
2°Feels -1
Wind
11 km/h E
Gust
17 km/h
Humidity
87%
P.O.P
20%
Historical AveragesApr 4
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity