S
M
T
W
T
F
S
26
56°
34°
27
53°
35°
28
57°
35°
29
56°
40°
30
44°
37°
1
60°
37°
2
71°
45°
3
74°
48°
4
68°
39°
5
45°
34°
6
46°
43°
7
67°
46°
8
72°
49°
9
69°
50°
10
68°
47°
11
67°
47°
12
68°
48°
13
71°
47°
14
68°
45°
15
60°
42°
16
61°
41°
17
62°
41°
18
64°
42°
19
65°
43°
20
66°
46°
21
63°
45°
22
64°
43°
23
66°
43°
24
62°
42°
25
61°
42°
26
62°
41°
27
65°
41°
28
67°
43°
29
73°
47°
30
77°
53°
31
71°
53°
1
74°
52°
2
75°
49°
3
76°
51°
4
79°
52°
5
77°
53°
6
79°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Littleton
Littleton's May 2026 forecast shows daily high temperatures ranging from 45° to 79°, with overnight lows between 34° and 55°. The average high for May is 67° with an average low of 46°. 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 Littleton. See also: June | July | August.
