S
M
T
W
T
F
S
30
80°
61°
31
83°
64°
1
85°
60°
2
83°
59°
3
78°
58°
4
79°
59°
5
80°
65°
6
84°
65°
7
85°
64°
8
79°
64°
9
78°
63°
10
83°
63°
11
83°
62°
12
82°
64°
13
81°
60°
14
78°
56°
15
76°
57°
16
74°
56°
17
75°
55°
18
76°
55°
19
80°
60°
20
79°
61°
21
80°
57°
22
76°
53°
23
74°
58°
24
75°
59°
25
78°
52°
26
74°
51°
27
Hist. Avg.
74°
54°
28
Hist. Avg.
74°
54°
29
Hist. Avg.
74°
53°
30
Hist. Avg.
73°
53°
1
Hist. Avg.
73°
52°
2
Hist. Avg.
72°
52°
3
Hist. Avg.
72°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Gainesville
Gainesville's September 2026 forecast shows daily high temperatures ranging from 74° to 85°, with overnight lows between 51° and 65°. The average high for September is 79° with an average low of 59°. 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 Gainesville. See also: October | November | December.
