S
M
T
W
T
F
S
26
66°
30°
27
69°
38°
28
67°
38°
29
72°
41°
30
76°
41°
1
78°
40°
2
83°
54°
3
86°
59°
4
88°
59°
5
83°
55°
6
88°
48°
7
80°
53°
8
79°
46°
9
76°
47°
10
78°
48°
11
77°
48°
12
87°
46°
13
71°
46°
14
65°
44°
15
64°
37°
16
66°
37°
17
72°
41°
18
72°
43°
19
75°
50°
20
79°
53°
21
76°
44°
22
82°
45°
23
86°
51°
24
84°
50°
25
82°
48°
26
71°
49°
27
83°
58°
28
93°
59°
29
77°
49°
30
74°
48°
31
76°
52°
1
79°
50°
2
84°
55°
3
83°
51°
4
82°
50°
5
80°
50°
6
81°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Coulee City
Coulee City's May 2026 forecast shows daily high temperatures ranging from 74° to 93°, with overnight lows between 48° and 59°. The average high for May is 81° with an average low of 52°. 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 Coulee City. See also: June | July | August.
