S
M
T
W
T
F
S
26
59°
40°
27
60°
41°
28
56°
40°
29
55°
41°
30
56°
39°
1
55°
41°
2
55°
40°
3
56°
39°
4
56°
39°
5
57°
40°
6
56°
38°
7
56°
40°
8
58°
46°
9
63°
46°
10
61°
45°
11
59°
46°
12
60°
42°
13
58°
40°
14
62°
43°
15
65°
46°
16
66°
47°
17
65°
48°
18
66°
48°
19
66°
47°
20
67°
48°
21
66°
48°
22
66°
47°
23
65°
48°
24
64°
47°
25
65°
44°
26
67°
48°
27
71°
48°
28
70°
43°
29
64°
46°
30
70°
44°
31
68°
46°
1
68°
47°
2
69°
44°
3
68°
47°
4
64°
46°
5
65°
45°
6
65°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Brentford
Brentford's May 2026 forecast shows daily high temperatures ranging from 55° to 71°, with overnight lows between 38° and 48°. The average high for May is 63° with an average low of 44°. 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 Brentford. See also: June | July | August.
