S
M
T
W
T
F
S
26
58°
41°
27
69°
41°
28
61°
43°
29
63°
52°
30
70°
46°
1
64°
43°
2
63°
43°
3
63°
41°
4
73°
47°
5
80°
58°
6
72°
61°
7
64°
53°
8
72°
43°
9
70°
57°
10
78°
50°
11
63°
52°
12
66°
45°
13
74°
55°
14
61°
45°
15
69°
48°
16
78°
62°
17
86°
63°
18
89°
66°
19
99°
70°
20
91°
66°
21
72°
56°
22
71°
55°
23
74°
56°
24
79°
58°
25
80°
62°
26
84°
64°
27
85°
57°
28
78°
58°
29
73°
59°
30
74°
62°
31
79°
59°
1
74°
57°
2
75°
55°
3
73°
55°
4
75°
56°
5
76°
63°
6
83°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fallston
Fallston's May 2026 forecast shows daily high temperatures ranging from 61° to 99°, with overnight lows between 45° and 70°. The average high for May is 78° with an average low of 59°. 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 Fallston. See also: June | July | August.
