S
M
T
W
T
F
S
31
72°
50°
1
73°
51°
2
68°
52°
3
65°
53°
4
69°
53°
5
74°
53°
6
62°
54°
7
69°
50°
8
66°
50°
9
69°
59°
10
79°
54°
11
96°
59°
12
74°
59°
13
68°
57°
14
72°
58°
15
71°
58°
16
74°
58°
17
71°
59°
18
71°
58°
19
72°
59°
20
71°
62°
21
71°
56°
22
69°
56°
23
70°
56°
24
68°
55°
25
75°
57°
26
71°
57°
27
70°
54°
28
77°
55°
29
78°
55°
30
72°
56°
1
72°
55°
2
68°
54°
3
70°
55°
4
71°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in San Mateo
San Mateo's June 2026 forecast shows daily high temperatures ranging from 68° to 78°, with overnight lows between 54° and 56°. The average high for June is 72° with an average low of 55°. 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 Mateo. See also: July | August | September.
