S
M
T
W
T
F
S
26
85°
71°
27
86°
68°
28
85°
67°
29
85°
69°
30
86°
73°
31
90°
72°
1
88°
67°
2
85°
67°
3
84°
69°
4
84°
67°
5
84°
67°
6
85°
66°
7
84°
66°
8
84°
67°
9
85°
70°
10
84°
72°
11
84°
72°
12
85°
69°
13
87°
72°
14
89°
66°
15
88°
66°
16
84°
70°
17
87°
71°
18
89°
67°
19
83°
66°
20
82°
65°
21
83°
69°
22
83°
66°
23
84°
71°
24
82°
70°
25
85°
71°
26
83°
71°
27
87°
70°
28
87°
70°
29
86°
69°
30
87°
64°
31
81°
64°
1
81°
65°
2
82°
63°
3
81°
68°
4
82°
63°
5
85°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Dumfries
Dumfries's August 2026 forecast shows daily high temperatures ranging from 81° to 90°, with overnight lows between 63° and 73°. The average high for August is 85° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Dumfries. See also: September | October | November.
