S
M
T
W
T
F
S
28
95°
76°
29
95°
74°
30
96°
74°
1
98°
73°
2
97°
71°
3
97°
73°
4
92°
70°
5
90°
70°
6
95°
69°
7
88°
69°
8
95°
68°
9
98°
74°
10
97°
75°
11
97°
76°
12
95°
73°
13
90°
69°
14
91°
70°
15
84°
71°
16
92°
72°
17
95°
70°
18
95°
72°
19
95°
71°
20
97°
73°
21
98°
74°
22
93°
71°
23
93°
72°
24
92°
71°
25
93°
72°
26
92°
71°
27
94°
75°
28
93°
75°
29
94°
74°
30
95°
75°
31
95°
75°
1
94°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Thornton
Thornton's July 2026 forecast shows daily high temperatures ranging from 84° to 98°, with overnight lows between 69° and 75°. The average high for July is 93° with an average low of 72°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Thornton. See also: August | September | October.
