S
M
T
W
T
F
S
30
78°
55°
31
78°
60°
1
79°
61°
2
78°
54°
3
77°
53°
4
76°
60°
5
76°
60°
6
84°
61°
7
85°
60°
8
84°
58°
9
83°
58°
10
76°
59°
11
76°
57°
12
80°
59°
13
83°
56°
14
83°
55°
15
Hist. Avg.
77°
52°
16
Hist. Avg.
76°
52°
17
Hist. Avg.
76°
51°
18
Hist. Avg.
76°
51°
19
Hist. Avg.
76°
50°
20
Hist. Avg.
75°
50°
21
Hist. Avg.
75°
50°
22
Hist. Avg.
74°
49°
23
Hist. Avg.
74°
49°
24
Hist. Avg.
74°
48°
25
Hist. Avg.
73°
48°
26
Hist. Avg.
73°
48°
27
Hist. Avg.
72°
47°
28
Hist. Avg.
72°
47°
29
Hist. Avg.
72°
46°
30
Hist. Avg.
71°
46°
1
Hist. Avg.
71°
46°
2
Hist. Avg.
70°
45°
3
Hist. Avg.
70°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lone Tree
Lone Tree's September 2026 forecast shows daily high temperatures ranging from 76° to 85°, with overnight lows between 53° and 61°. The average high for September is 80° with an average low of 58°. 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 Lone Tree. See also: October | November | December.
