S
M
T
W
T
F
S
26
88°
46°
27
89°
48°
28
87°
46°
29
84°
46°
30
85°
47°
31
88°
46°
1
87°
47°
2
88°
48°
3
88°
48°
4
89°
47°
5
88°
47°
6
88°
48°
7
89°
48°
8
88°
46°
9
80°
46°
10
78°
41°
11
77°
39°
12
77°
40°
13
78°
45°
14
82°
45°
15
83°
44°
16
79°
44°
17
78°
36°
18
83°
37°
19
87°
43°
20
86°
42°
21
80°
43°
22
86°
41°
23
80°
38°
24
75°
38°
25
77°
39°
26
77°
32°
27
74°
34°
28
75°
33°
29
73°
31°
30
74°
33°
31
76°
38°
1
79°
40°
2
81°
41°
3
83°
41°
4
76°
35°
5
73°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Three Rivers
Three Rivers's August 2026 forecast shows daily high temperatures ranging from 73° to 89°, with overnight lows between 31° and 48°. The average high for August is 82° with an average low of 42°. 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 Three Rivers. See also: September | October | November.
