S
M
T
W
T
F
S
27
58°
56°
28
56°
54°
29
66°
54°
30
70°
56°
1
76°
56°
2
85°
65°
3
70°
45°
4
64°
40°
5
70°
44°
6
61°
39°
7
66°
32°
8
73°
52°
9
70°
44°
10
64°
42°
11
64°
53°
12
66°
49°
13
67°
47°
14
58°
38°
15
59°
42°
16
64°
49°
17
64°
42°
18
60°
40°
19
58°
40°
20
59°
43°
21
60°
40°
22
59°
39°
23
56°
36°
24
54°
34°
25
54°
43°
26
61°
43°
27
61°
33°
28
52°
33°
29
52°
32°
30
53°
40°
31
57°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Waltham
Waltham's October 2026 forecast shows daily high temperatures ranging from 52° to 70°, with overnight lows between 32° and 53°. The average high for October is 60° with an average low of 41°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Waltham. See also: November | December | January.
