S
M
T
W
T
F
S
26
45°
24°
27
46°
29°
28
54°
28°
29
59°
30°
30
60°
27°
1
68°
26°
2
75°
34°
3
74°
40°
4
62°
42°
5
51°
33°
6
60°
22°
7
67°
40°
8
71°
41°
9
64°
45°
10
77°
39°
11
90°
45°
12
80°
45°
13
96°
45°
14
78°
48°
15
78°
39°
16
71°
36°
17
51°
33°
18
44°
32°
19
64°
37°
20
65°
41°
21
72°
43°
22
82°
49°
23
75°
48°
24
74°
45°
25
76°
46°
26
82°
49°
27
76°
45°
28
68°
41°
29
69°
42°
30
70°
46°
31
71°
46°
1
78°
50°
2
81°
52°
3
81°
53°
4
83°
53°
5
82°
48°
6
75°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in East Thermopolis
East Thermopolis's May 2026 forecast shows daily high temperatures ranging from 44° to 83°, with overnight lows between 32° and 53°. The average high for May is 73° with an average low of 45°. 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 East Thermopolis. See also: June | July | August.
