S
M
T
W
T
F
S
30
74°
48°
31
78°
50°
1
81°
53°
2
70°
49°
3
66°
49°
4
68°
49°
5
71°
50°
6
74°
52°
7
75°
52°
8
75°
51°
9
77°
54°
10
78°
55°
11
74°
46°
12
66°
45°
13
67°
41°
14
76°
47°
15
77°
47°
16
73°
42°
17
64°
41°
18
64°
39°
19
65°
42°
20
63°
39°
21
62°
38°
22
63°
37°
23
63°
38°
24
61°
36°
25
62°
37°
26
69°
40°
27
71°
46°
28
67°
44°
29
60°
42°
30
62°
38°
1
69°
44°
2
64°
43°
3
64°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Loomis
Loomis's September 2026 forecast shows daily high temperatures ranging from 60° to 81°, with overnight lows between 36° and 55°. The average high for September is 69° with an average low of 45°. 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 Loomis. See also: October | November | December.
