S
M
T
W
T
F
S
30
87°
55°
31
86°
54°
1
86°
51°
2
79°
48°
3
78°
49°
4
79°
47°
5
79°
49°
6
81°
49°
7
84°
50°
8
85°
51°
9
86°
52°
10
84°
51°
11
83°
54°
12
83°
53°
13
84°
50°
14
82°
47°
15
78°
46°
16
76°
49°
17
74°
50°
18
76°
48°
19
74°
49°
20
Hist. Avg.
75°
45°
21
Hist. Avg.
75°
45°
22
Hist. Avg.
74°
44°
23
Hist. Avg.
74°
44°
24
Hist. Avg.
73°
44°
25
Hist. Avg.
73°
43°
26
Hist. Avg.
72°
43°
27
Hist. Avg.
72°
42°
28
Hist. Avg.
71°
42°
29
Hist. Avg.
71°
42°
30
Hist. Avg.
70°
41°
1
Hist. Avg.
70°
41°
2
Hist. Avg.
69°
40°
3
Hist. Avg.
69°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Vernal
Vernal's September 2026 forecast shows daily high temperatures ranging from 74° to 87°, with overnight lows between 46° and 55°. The average high for September is 81° with an average low of 50°. 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 Vernal. See also: October | November | December.
