S
M
T
W
T
F
S
30
85°
46°
31
76°
41°
1
72°
44°
2
72°
50°
3
78°
51°
4
79°
43°
5
78°
38°
6
67°
39°
7
69°
46°
8
71°
43°
9
76°
44°
10
68°
49°
11
74°
39°
12
68°
41°
13
68°
40°
14
67°
42°
15
70°
43°
16
74°
44°
17
74°
40°
18
73°
40°
19
63°
45°
20
72°
47°
21
74°
43°
22
75°
42°
23
69°
45°
24
73°
43°
25
75°
35°
26
68°
34°
27
58°
39°
28
61°
40°
29
69°
41°
30
66°
38°
1
60°
44°
2
67°
43°
3
58°
32°
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 58° to 85°, with overnight lows between 32° and 51°. The average high for September is 70° with an average low of 42°. 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.
