S
M
T
W
T
F
S
27
81°
51°
28
79°
50°
29
78°
49°
30
79°
47°
1
78°
49°
2
71°
46°
3
75°
45°
4
77°
45°
5
77°
41°
6
70°
36°
7
63°
34°
8
67°
36°
9
77°
45°
10
77°
39°
11
66°
44°
12
73°
39°
13
73°
41°
14
70°
43°
15
69°
42°
16
74°
44°
17
74°
46°
18
76°
39°
19
72°
38°
20
65°
38°
21
67°
31°
22
60°
29°
23
56°
33°
24
56°
29°
25
58°
29°
26
59°
25°
27
54°
24°
28
56°
24°
29
55°
25°
30
56°
30°
31
63°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Thornton
Thornton's October 2026 forecast shows daily high temperatures ranging from 54° to 81°, with overnight lows between 24° and 51°. The average high for October is 69° with an average low of 38°. 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 Thornton. See also: November | December | January.
