S
M
T
W
T
F
S
26
62°
42°
27
73°
39°
28
62°
40°
29
67°
48°
30
65°
48°
1
66°
40°
2
62°
47°
3
62°
42°
4
74°
44°
5
83°
53°
6
68°
54°
7
66°
47°
8
66°
40°
9
64°
48°
10
76°
49°
11
62°
47°
12
67°
38°
13
73°
52°
14
65°
51°
15
66°
49°
16
82°
45°
17
87°
61°
18
94°
65°
19
95°
70°
20
92°
62°
21
62°
53°
22
68°
53°
23
55°
49°
24
61°
57°
25
72°
59°
26
79°
63°
27
81°
60°
28
76°
54°
29
75°
52°
30
73°
53°
31
74°
55°
1
74°
57°
2
77°
57°
3
77°
58°
4
75°
56°
5
77°
57°
6
73°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Chalfont
Chalfont's May 2026 forecast shows daily high temperatures ranging from 55° to 81°, with overnight lows between 49° and 63°. The average high for May is 73° with an average low of 56°. 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 Chalfont. See also: June | July | August.
