S
M
T
W
T
F
S
30
88°
72°
31
88°
72°
1
87°
71°
2
88°
71°
3
84°
67°
4
82°
68°
5
82°
66°
6
83°
65°
7
86°
69°
8
87°
70°
9
86°
70°
10
87°
71°
11
87°
71°
12
86°
70°
13
85°
70°
14
85°
68°
15
86°
68°
16
86°
63°
17
83°
67°
18
81°
61°
19
83°
62°
20
79°
63°
21
79°
65°
22
80°
65°
23
80°
64°
24
83°
60°
25
81°
61°
26
77°
62°
27
77°
59°
28
81°
63°
29
80°
63°
30
81°
61°
1
78°
63°
2
79°
62°
3
80°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Longwood
Longwood's September 2026 forecast shows daily high temperatures ranging from 77° to 88°, with overnight lows between 59° and 72°. The average high for September is 83° with an average low of 66°. 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 Longwood. See also: October | November | December.
