S
M
T
W
T
F
S
31
71°
45°
1
73°
47°
2
74°
48°
3
80°
54°
4
65°
49°
5
73°
47°
6
65°
50°
7
67°
44°
8
65°
44°
9
75°
44°
10
75°
48°
11
72°
47°
12
75°
49°
13
75°
53°
14
77°
51°
15
77°
51°
16
72°
49°
17
76°
51°
18
80°
53°
19
69°
54°
20
77°
51°
21
74°
53°
22
74°
63°
23
78°
61°
24
70°
61°
25
70°
58°
26
80°
51°
27
83°
53°
28
70°
49°
29
77°
45°
30
72°
46°
1
69°
46°
2
77°
45°
3
84°
44°
4
87°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Watford
Watford's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Watford. See also: October | November | December.
