S
M
T
W
T
F
S
26
94°
75°
27
94°
75°
28
95°
76°
29
95°
75°
30
94°
76°
31
96°
76°
1
95°
77°
2
96°
77°
3
96°
75°
4
95°
75°
5
95°
76°
6
96°
76°
7
96°
75°
8
95°
75°
9
95°
74°
10
89°
73°
11
92°
73°
12
91°
71°
13
92°
72°
14
93°
73°
15
94°
72°
16
93°
72°
17
93°
65°
18
92°
63°
19
86°
62°
20
84°
62°
21
84°
63°
22
85°
63°
23
85°
64°
24
86°
63°
25
86°
63°
26
88°
66°
27
88°
63°
28
85°
62°
29
85°
66°
30
90°
66°
31
90°
64°
1
91°
64°
2
87°
66°
3
86°
67°
4
87°
68°
5
87°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Weir
Weir's August 2026 forecast shows daily high temperatures ranging from 84° to 96°, with overnight lows between 62° and 77°. The average high for August is 91° with an average low of 70°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Weir. See also: September | October | November.
