S
M
T
W
T
F
S
26
65°
44°
27
61°
49°
28
64°
46°
29
51°
37°
30
50°
34°
1
48°
30°
2
62°
28°
3
73°
48°
4
78°
40°
5
55°
36°
6
55°
31°
7
57°
31°
8
70°
33°
9
64°
38°
10
63°
33°
11
60°
30°
12
79°
40°
13
64°
42°
14
72°
35°
15
84°
50°
16
87°
59°
17
64°
49°
18
83°
52°
19
72°
53°
20
64°
46°
21
62°
41°
22
68°
46°
23
74°
54°
24
79°
55°
25
85°
55°
26
92°
60°
27
83°
61°
28
75°
53°
29
83°
57°
30
73°
46°
31
77°
50°
1
81°
48°
2
79°
51°
3
83°
57°
4
82°
60°
5
80°
57°
6
72°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Big Falls
Big Falls's May 2026 forecast shows daily high temperatures ranging from 72° to 83°, with overnight lows between 46° and 60°. The average high for May is 79° with an average low of 53°. 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 Big Falls. See also: June | July | August.
