S
M
T
W
T
F
S
30
91°
69°
31
87°
67°
1
86°
64°
2
86°
63°
3
85°
62°
4
84°
62°
5
85°
63°
6
86°
65°
7
89°
67°
8
90°
67°
9
85°
66°
10
89°
68°
11
90°
67°
12
90°
67°
13
89°
66°
14
89°
66°
15
90°
65°
16
89°
66°
17
90°
65°
18
89°
64°
19
83°
63°
20
87°
64°
21
88°
57°
22
83°
56°
23
84°
60°
24
85°
62°
25
Hist. Avg.
83°
62°
26
Hist. Avg.
83°
61°
27
Hist. Avg.
83°
61°
28
Hist. Avg.
82°
60°
29
Hist. Avg.
82°
60°
30
Hist. Avg.
82°
60°
1
Hist. Avg.
81°
59°
2
Hist. Avg.
81°
59°
3
Hist. Avg.
81°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Prague
Prague's September 2026 forecast shows daily high temperatures ranging from 83° to 91°, with overnight lows between 56° and 69°. The average high for September is 87° with an average low of 64°. 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 Prague. See also: October | November | December.
