S
M
T
W
T
F
S
28
94°
72°
29
95°
73°
30
97°
74°
1
96°
71°
2
98°
72°
3
97°
72°
4
92°
68°
5
87°
70°
6
87°
68°
7
89°
66°
8
92°
70°
9
90°
71°
10
87°
69°
11
89°
72°
12
86°
67°
13
88°
66°
14
88°
68°
15
90°
67°
16
91°
68°
17
87°
67°
18
83°
64°
19
87°
70°
20
90°
70°
21
87°
68°
22
84°
66°
23
86°
67°
24
86°
68°
25
87°
69°
26
88°
70°
27
90°
70°
28
90°
71°
29
89°
71°
30
90°
70°
31
89°
71°
1
90°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Dahlgren
Dahlgren's July 2026 forecast shows daily high temperatures ranging from 83° to 92°, with overnight lows between 64° and 72°. The average high for July is 88° with an average low of 69°. 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 Dahlgren. See also: August | September | October.