S
M
T
W
T
F
S
26
78°
63°
27
79°
62°
28
79°
64°
29
81°
64°
30
78°
63°
1
79°
64°
2
78°
63°
3
80°
63°
4
82°
62°
5
82°
65°
6
81°
65°
7
82°
64°
8
85°
65°
9
85°
66°
10
84°
66°
11
85°
67°
12
83°
67°
13
80°
66°
14
81°
66°
15
86°
68°
16
87°
68°
17
86°
67°
18
89°
63°
19
88°
62°
20
83°
65°
21
83°
70°
22
89°
66°
23
90°
64°
24
84°
63°
25
84°
70°
26
85°
71°
27
90°
71°
28
90°
72°
29
89°
71°
30
91°
69°
31
93°
69°
1
92°
70°
2
90°
68°
3
92°
67°
4
92°
69°
5
94°
70°
6
93°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Brenham
Brenham's May 2026 forecast shows daily high temperatures ranging from 78° to 94°, with overnight lows between 62° and 72°. The average high for May is 85° with an average low of 66°. 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 Brenham. See also: June | July | August.
