S
M
T
W
T
F
S
27
91°
65°
28
94°
70°
29
94°
66°
30
94°
73°
1
82°
71°
2
82°
71°
3
73°
69°
4
74°
68°
5
83°
66°
6
86°
61°
7
87°
62°
8
89°
60°
9
92°
59°
10
92°
63°
11
91°
65°
12
91°
73°
13
91°
73°
14
91°
72°
15
88°
65°
16
75°
54°
17
77°
54°
18
76°
55°
19
77°
57°
20
78°
58°
21
80°
54°
22
75°
55°
23
73°
48°
24
73°
48°
25
72°
49°
26
73°
48°
27
76°
53°
28
75°
51°
29
74°
53°
30
76°
54°
31
76°
56°
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 72° to 92°, with overnight lows between 48° and 73°. The average high for October is 80° with an average low of 57°. 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.
