S
M
T
W
T
F
S
26
73°
50°
27
72°
50°
28
75°
54°
29
75°
54°
30
74°
49°
31
74°
54°
1
72°
47°
2
72°
49°
3
73°
48°
4
72°
51°
5
73°
54°
6
71°
55°
7
77°
54°
8
77°
54°
9
76°
53°
10
77°
54°
11
76°
53°
12
76°
54°
13
75°
54°
14
76°
53°
15
74°
51°
16
71°
52°
17
75°
53°
18
74°
49°
19
70°
51°
20
74°
53°
21
73°
50°
22
69°
50°
23
69°
46°
24
73°
45°
25
72°
45°
26
Hist. Avg.
66°
50°
27
Hist. Avg.
66°
50°
28
Hist. Avg.
65°
50°
29
Hist. Avg.
65°
49°
30
Hist. Avg.
65°
49°
31
Hist. Avg.
64°
49°
1
Hist. Avg.
64°
49°
2
Hist. Avg.
64°
49°
3
Hist. Avg.
63°
48°
4
Hist. Avg.
63°
48°
5
Hist. Avg.
63°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Oslo
Oslo's August 2026 forecast shows daily high temperatures ranging from 69° to 77°, with overnight lows between 45° and 55°. The average high for August is 74° with an average low of 51°. 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 Oslo. See also: September | October | November.
