S
M
T
W
T
F
S
26
48°
31°
27
43°
27°
28
50°
29°
29
52°
29°
30
49°
31°
1
58°
29°
2
65°
31°
3
68°
39°
4
69°
40°
5
42°
28°
6
58°
38°
7
69°
44°
8
72°
44°
9
69°
39°
10
72°
42°
11
79°
47°
12
83°
46°
13
79°
46°
14
72°
44°
15
73°
43°
16
71°
41°
17
68°
39°
18
67°
38°
19
61°
35°
20
66°
39°
21
64°
38°
22
72°
46°
23
73°
45°
24
63°
42°
25
66°
40°
26
73°
45°
27
72°
42°
28
62°
40°
29
63°
40°
30
64°
40°
31
66°
42°
1
72°
45°
2
74°
47°
3
77°
48°
4
77°
48°
5
76°
47°
6
78°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Green River
Green River's May 2026 forecast shows daily high temperatures ranging from 42° to 83°, with overnight lows between 28° and 50°. The average high for May is 69° with an average low of 42°. 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 Green River. See also: June | July | August.
