S
M
T
W
T
F
S
26
79°
66°
27
84°
56°
28
79°
58°
29
76°
59°
30
78°
56°
1
76°
53°
2
74°
55°
3
77°
56°
4
75°
59°
5
73°
54°
6
73°
56°
7
79°
62°
8
80°
62°
9
79°
57°
10
78°
63°
11
82°
64°
12
82°
63°
13
81°
55°
14
74°
58°
15
78°
64°
16
80°
64°
17
82°
65°
18
80°
63°
19
76°
58°
20
76°
57°
21
77°
60°
22
84°
62°
23
85°
66°
24
85°
67°
25
84°
67°
26
78°
66°
27
79°
67°
28
81°
68°
29
81°
68°
30
80°
65°
31
80°
66°
1
84°
67°
2
87°
61°
3
85°
63°
4
81°
62°
5
83°
65°
6
88°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lake Texoma State Park
Lake Texoma State Park's May 2026 forecast shows daily high temperatures ranging from 73° to 88°, with overnight lows between 53° and 68°. The average high for May is 80° with an average low of 62°. 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 Lake Texoma State Park. See also: June | July | August.