S
M
T
W
T
F
S
28
67°
48°
29
67°
49°
30
66°
50°
1
68°
46°
2
69°
49°
3
69°
49°
4
67°
51°
5
69°
45°
6
66°
46°
7
68°
47°
8
70°
49°
9
69°
50°
10
70°
51°
11
69°
50°
12
69°
51°
13
70°
50°
14
68°
48°
15
69°
49°
16
67°
51°
17
Hist. Avg.
64°
52°
18
Hist. Avg.
64°
52°
19
Hist. Avg.
64°
52°
20
Hist. Avg.
64°
52°
21
Hist. Avg.
64°
52°
22
Hist. Avg.
64°
52°
23
Hist. Avg.
64°
52°
24
Hist. Avg.
64°
52°
25
Hist. Avg.
64°
52°
26
Hist. Avg.
64°
52°
27
Hist. Avg.
64°
52°
28
Hist. Avg.
64°
52°
29
Hist. Avg.
64°
52°
30
Hist. Avg.
64°
52°
31
Hist. Avg.
64°
52°
1
Hist. Avg.
64°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Collin
Collin's July 2026 forecast shows daily high temperatures ranging from 66° to 70°, with overnight lows between 45° and 51°. The average high for July is 68° with an average low of 49°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Collin. See also: August | September | October.