S
M
T
W
T
F
S
26
88°
66°
27
87°
65°
28
86°
64°
29
87°
66°
30
86°
65°
31
86°
66°
1
87°
66°
2
85°
65°
3
87°
66°
4
86°
65°
5
86°
64°
6
79°
63°
7
77°
63°
8
79°
62°
9
77°
63°
10
82°
65°
11
83°
59°
12
85°
54°
13
82°
61°
14
83°
63°
15
82°
56°
16
85°
53°
17
76°
51°
18
73°
50°
19
74°
51°
20
75°
53°
21
76°
53°
22
76°
54°
23
75°
57°
24
77°
57°
25
81°
51°
26
75°
50°
27
74°
50°
28
76°
57°
29
82°
60°
30
82°
55°
31
85°
49°
1
74°
50°
2
73°
57°
3
74°
58°
4
81°
48°
5
83°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Montevideo
Montevideo's August 2026 forecast shows daily high temperatures ranging from 73° to 88°, with overnight lows between 46° and 66°. The average high for August is 81° with an average low of 58°. 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 Montevideo. See also: September | October | November.
