Monthly Historical AveragesGrass Valley, OR
Average Temperature
High
18°
Feels 18
Low
6°
Feels 4
Average Precipitation
4 Days
6.3mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, May 27, 2026
Day
25°Feels 25
Wind
20 km/h NE
Gust
30 km/h
Humidity
36%
P.O.P
10%
Night
11°Feels 10
Wind
13 km/h N
Gust
20 km/h
Humidity
82%
P.O.P
20%
Historical AveragesMay 27
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity