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°
26°
6
50°
24°
7
66°
42°
8
70°
36°
9
68°
40°
10
70°
33°
11
82°
42°
12
83°
48°
13
82°
49°
14
69°
44°
15
72°
40°
16
69°
39°
17
46°
32°
18
37°
27°
19
50°
28°
20
59°
29°
21
52°
31°
22
58°
30°
23
73°
45°
24
72°
48°
25
74°
51°
26
71°
50°
27
73°
46°
28
75°
48°
29
70°
43°
30
76°
45°
31
77°
47°
1
78°
47°
2
81°
49°
3
78°
50°
4
79°
48°
5
73°
43°
6
76°
46°
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 70° to 81°, with overnight lows between 43° and 51°. The average high for May is 75° with an average low of 47°. 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.
