S
M
T
W
T
F
S
31
75°
61°
1
82°
51°
2
81°
52°
3
83°
54°
4
89°
54°
5
82°
55°
6
81°
57°
7
80°
50°
8
79°
48°
9
83°
48°
10
87°
49°
11
87°
49°
12
87°
48°
13
88°
49°
14
85°
52°
15
87°
52°
16
87°
51°
17
86°
52°
18
88°
53°
19
88°
52°
20
87°
52°
21
88°
53°
22
88°
53°
23
87°
52°
24
88°
53°
25
88°
53°
26
87°
52°
27
88°
52°
28
86°
50°
29
85°
50°
30
87°
51°
1
88°
52°
2
89°
55°
3
90°
55°
4
89°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in San Francisco
San Francisco's June 2026 forecast shows daily high temperatures ranging from 79° to 90°, with overnight lows between 48° and 57°. The average high for June is 86° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in San Francisco. See also: July | August | September.