S
M
T
W
T
F
S
28
90°
70°
29
90°
73°
30
91°
77°
1
90°
77°
2
90°
64°
3
89°
71°
4
86°
66°
5
85°
65°
6
83°
65°
7
87°
67°
8
89°
69°
9
88°
67°
10
84°
68°
11
83°
66°
12
86°
66°
13
87°
68°
14
89°
67°
15
86°
66°
16
87°
64°
17
80°
64°
18
84°
68°
19
86°
69°
20
87°
68°
21
87°
68°
22
88°
69°
23
88°
69°
24
87°
68°
25
84°
69°
26
86°
69°
27
86°
68°
28
87°
69°
29
87°
67°
30
86°
68°
31
82°
67°
1
80°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Newton
Newton's July 2026 forecast shows daily high temperatures ranging from 80° to 89°, with overnight lows between 63° and 71°. The average high for July is 86° with an average low of 67°. 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 Newton. See also: August | September | October.