S
M
T
W
T
F
S
30
101°
75°
31
100°
75°
1
100°
75°
2
100°
74°
3
90°
75°
4
99°
75°
5
99°
73°
6
100°
74°
7
101°
73°
8
100°
76°
9
99°
77°
10
98°
73°
11
99°
73°
12
100°
73°
13
100°
76°
14
99°
75°
15
100°
76°
16
99°
76°
17
99°
74°
18
97°
73°
19
96°
70°
20
99°
75°
21
96°
75°
22
97°
72°
23
97°
74°
24
93°
73°
25
92°
66°
26
94°
63°
27
94°
70°
28
95°
73°
29
95°
71°
30
92°
76°
1
79°
71°
2
80°
69°
3
74°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Midlothian
Midlothian's September 2026 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 Midlothian. See also: October | November | December.