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7 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
O'Brien, OR
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May
Average Temperature
High
21°
Feels 21
Low
6°
Feels 5
Average Precipitation
8 Days
Rain amount
27.9mm
Snow amount
0cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21°
21
26°
22
27°
23
27°
24
27°
25
21°
26
12°
27
15°
28
19°
29
19°
30
18°
31
19°
Forecast
Wednesday, May 20, 2026
Day
21°
Feels 21
Wind
18 km/h NE
Gust
27 km/h
Humidity
28%
P.O.P
20%
Night
7°
Feels 5
Wind
20 km/h N
Gust
30 km/h
Humidity
81%
P.O.P
20%
Historical Averages
May 20
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.