S
M
T
W
T
F
S
26
80°
59°
27
83°
55°
28
73°
58°
29
78°
60°
30
N/A
1
67°
44°
2
61°
38°
3
63°
42°
4
72°
50°
5
71°
52°
6
63°
42°
7
65°
36°
8
62°
43°
9
67°
46°
10
67°
47°
11
69°
48°
12
72°
51°
13
71°
50°
14
75°
54°
15
72°
56°
16
74°
56°
17
76°
55°
18
76°
56°
19
75°
57°
20
76°
57°
21
76°
56°
22
78°
58°
23
77°
58°
24
72°
57°
25
75°
58°
26
77°
59°
27
74°
58°
28
73°
56°
29
76°
58°
30
74°
55°
31
74°
58°
1
78°
59°
2
80°
60°
3
81°
60°
4
81°
59°
5
73°
58°
6
74°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in South Harriman
South Harriman's May 2026 forecast shows daily high temperatures ranging from 61° to 81°, with overnight lows between 36° and 60°. The average high for May is 73° with an average low of 53°. 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 South Harriman. See also: June | July | August.
