S
M
T
W
T
F
S
26
83°
56°
27
79°
56°
28
72°
57°
29
81°
60°
30
71°
52°
1
67°
46°
2
69°
50°
3
71°
40°
4
79°
40°
5
79°
50°
6
72°
63°
7
71°
52°
8
72°
44°
9
77°
49°
10
83°
53°
11
78°
56°
12
75°
54°
13
81°
51°
14
76°
52°
15
79°
43°
16
83°
50°
17
90°
55°
18
89°
65°
19
90°
65°
20
89°
61°
21
80°
67°
22
80°
65°
23
83°
68°
24
76°
68°
25
81°
67°
26
82°
69°
27
84°
69°
28
86°
67°
29
78°
67°
30
76°
64°
31
71°
61°
1
81°
60°
2
79°
57°
3
76°
55°
4
78°
55°
5
78°
58°
6
76°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Head River
Head River's May 2026 forecast shows daily high temperatures ranging from 71° to 81°, with overnight lows between 55° and 65°. The average high for May is 77° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Head River. See also: June | July | August.
