S
M
T
W
T
F
S
26
85°
64°
27
84°
63°
28
86°
66°
29
85°
65°
30
87°
57°
31
84°
59°
1
79°
55°
2
77°
53°
3
75°
53°
4
76°
55°
5
78°
56°
6
82°
55°
7
85°
58°
8
84°
59°
9
84°
59°
10
85°
62°
11
84°
56°
12
84°
55°
13
Hist. Avg.
81°
59°
14
Hist. Avg.
81°
59°
15
Hist. Avg.
81°
58°
16
Hist. Avg.
81°
58°
17
Hist. Avg.
81°
58°
18
Hist. Avg.
80°
58°
19
Hist. Avg.
80°
58°
20
Hist. Avg.
80°
58°
21
Hist. Avg.
80°
57°
22
Hist. Avg.
80°
57°
23
Hist. Avg.
80°
57°
24
Hist. Avg.
79°
57°
25
Hist. Avg.
79°
56°
26
Hist. Avg.
79°
56°
27
Hist. Avg.
79°
56°
28
Hist. Avg.
78°
56°
29
Hist. Avg.
78°
55°
30
Hist. Avg.
78°
55°
31
Hist. Avg.
78°
54°
1
Hist. Avg.
77°
54°
2
Hist. Avg.
77°
54°
3
Hist. Avg.
77°
53°
4
Hist. Avg.
76°
53°
5
Hist. Avg.
76°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Montevideo
Montevideo's August 2026 forecast shows daily high temperatures ranging from 75° to 87°, with overnight lows between 53° and 66°. The average high for August is 82° 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.
