S
M
T
W
T
F
S
26
63°
46°
27
70°
48°
28
61°
48°
29
59°
48°
30
66°
52°
1
75°
50°
2
73°
52°
3
68°
57°
4
59°
54°
5
61°
50°
6
55°
46°
7
57°
48°
8
64°
46°
9
68°
50°
10
55°
43°
11
54°
41°
12
63°
41°
13
54°
46°
14
54°
46°
15
57°
45°
16
N/A
17
64°
46°
18
61°
52°
19
67°
56°
20
70°
54°
21
75°
56°
22
75°
59°
23
78°
56°
24
77°
57°
25
75°
55°
26
70°
52°
27
69°
52°
28
70°
53°
29
61°
43°
30
65°
45°
31
62°
46°
1
63°
44°
2
63°
44°
3
66°
49°
4
67°
50°
5
69°
51°
6
71°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Upminster
Upminster's May 2026 forecast shows daily high temperatures ranging from 61° to 78°, with overnight lows between 43° and 59°. The average high for May is 68° with an average low of 51°. 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 Upminster. See also: June | July | August.
