S
M
T
W
T
F
S
30
81°
66°
31
84°
68°
1
86°
62°
2
81°
61°
3
80°
61°
4
81°
60°
5
80°
60°
6
81°
64°
7
83°
60°
8
82°
65°
9
84°
65°
10
84°
64°
11
83°
63°
12
84°
65°
13
84°
65°
14
83°
64°
15
84°
64°
16
84°
62°
17
81°
63°
18
82°
64°
19
81°
63°
20
82°
63°
21
81°
61°
22
80°
54°
23
76°
60°
24
73°
60°
25
Hist. Avg.
74°
54°
26
Hist. Avg.
74°
53°
27
Hist. Avg.
74°
53°
28
Hist. Avg.
73°
52°
29
Hist. Avg.
73°
52°
30
Hist. Avg.
72°
52°
1
Hist. Avg.
72°
51°
2
Hist. Avg.
72°
51°
3
Hist. Avg.
71°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Jessup
Jessup's September 2026 forecast shows daily high temperatures ranging from 73° to 86°, with overnight lows between 54° and 68°. The average high for September is 82° with an average low of 63°. 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 Jessup. See also: October | November | December.
