S
M
T
W
T
F
S
26
80°
59°
27
83°
55°
28
73°
58°
29
78°
60°
30
70°
50°
1
73°
46°
2
68°
49°
3
69°
39°
4
81°
44°
5
79°
50°
6
71°
60°
7
69°
47°
8
74°
41°
9
79°
51°
10
85°
49°
11
74°
51°
12
73°
51°
13
75°
47°
14
67°
40°
15
77°
53°
16
80°
61°
17
87°
62°
18
86°
62°
19
83°
60°
20
76°
57°
21
78°
59°
22
79°
58°
23
81°
58°
24
80°
60°
25
79°
54°
26
79°
58°
27
78°
59°
28
80°
59°
29
80°
60°
30
79°
60°
31
80°
59°
1
79°
58°
2
80°
60°
3
82°
61°
4
81°
61°
5
75°
60°
6
79°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Harriman
Harriman's May 2026 forecast shows daily high temperatures ranging from 67° to 87°, with overnight lows between 40° and 62°. The average high for May is 79° with an average low of 58°. 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 Harriman. See also: June | July | August.
