S
M
T
W
T
F
S
31
72°
50°
1
77°
52°
2
71°
54°
3
71°
54°
4
74°
52°
5
71°
53°
6
65°
51°
7
68°
51°
8
74°
54°
9
72°
56°
10
73°
54°
11
72°
55°
12
72°
56°
13
71°
56°
14
72°
53°
15
73°
56°
16
76°
57°
17
76°
56°
18
74°
54°
19
74°
53°
20
71°
54°
21
74°
55°
22
74°
54°
23
73°
56°
24
74°
54°
25
74°
54°
26
69°
55°
27
69°
54°
28
74°
55°
29
75°
55°
30
74°
56°
1
74°
56°
2
72°
57°
3
75°
57°
4
73°
56°
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 65° to 77°, with overnight lows between 51° and 57°. The average high for June is 73° 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.
