S
M
T
W
T
F
S
30
86°
57°
31
86°
55°
1
85°
54°
2
83°
53°
3
82°
51°
4
81°
52°
5
81°
52°
6
82°
56°
7
82°
56°
8
83°
52°
9
82°
51°
10
82°
53°
11
81°
54°
12
81°
56°
13
82°
58°
14
87°
57°
15
87°
57°
16
86°
56°
17
85°
57°
18
86°
57°
19
86°
56°
20
87°
57°
21
86°
55°
22
85°
53°
23
84°
54°
24
82°
55°
25
83°
56°
26
83°
55°
27
79°
56°
28
80°
56°
29
Hist. Avg.
82°
55°
30
Hist. Avg.
81°
54°
1
Hist. Avg.
81°
54°
2
Hist. Avg.
81°
54°
3
Hist. Avg.
80°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Morgan Hill
Morgan Hill's September 2026 forecast shows daily high temperatures ranging from 79° to 87°, with overnight lows between 51° and 58°. The average high for September is 84° 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 September weather will actually feel in Morgan Hill. See also: October | November | December.
