S
M
T
W
T
F
S
26
80°
74°
27
80°
75°
28
79°
75°
29
80°
75°
30
80°
71°
1
72°
61°
2
73°
58°
3
73°
69°
4
75°
70°
5
78°
72°
6
80°
75°
7
78°
67°
8
77°
70°
9
78°
73°
10
79°
74°
11
76°
71°
12
79°
70°
13
80°
76°
14
82°
74°
15
82°
77°
16
82°
77°
17
82°
78°
18
86°
78°
19
82°
69°
20
78°
69°
21
78°
74°
22
85°
75°
23
81°
71°
24
77°
70°
25
81°
73°
26
81°
78°
27
80°
67°
28
82°
75°
29
86°
76°
30
83°
77°
31
82°
79°
1
84°
81°
2
82°
75°
3
85°
77°
4
82°
77°
5
82°
78°
6
84°
80°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Johnsons Bayou
Johnsons Bayou's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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 Johnsons Bayou. See also: June | July | August.