S
M
T
W
T
F
S
31
99°
70°
1
96°
70°
2
95°
74°
3
94°
72°
4
92°
71°
5
95°
67°
6
95°
67°
7
101°
69°
8
98°
73°
9
94°
73°
10
97°
75°
11
98°
74°
12
94°
73°
13
97°
74°
14
100°
76°
15
102°
75°
16
95°
72°
17
97°
74°
18
101°
75°
19
103°
74°
20
99°
72°
21
91°
77°
22
90°
72°
23
92°
72°
24
93°
71°
25
93°
72°
26
96°
72°
27
98°
74°
28
97°
74°
29
95°
75°
30
95°
75°
1
97°
74°
2
98°
75°
3
97°
74°
4
98°
75°
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 90° to 103°, with overnight lows between 71° and 77°. The average high for June is 96° with an average low of 74°. 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.