S
M
T
W
T
F
S
26
67°
62°
27
64°
61°
28
69°
58°
29
65°
62°
30
65°
60°
31
66°
58°
1
65°
56°
2
66°
56°
3
65°
59°
4
64°
58°
5
65°
59°
6
64°
59°
7
67°
61°
8
66°
61°
9
64°
60°
10
69°
58°
11
70°
59°
12
70°
59°
13
67°
56°
14
64°
56°
15
66°
58°
16
68°
61°
17
67°
60°
18
66°
58°
19
65°
58°
20
67°
59°
21
69°
61°
22
65°
57°
23
68°
61°
24
66°
60°
25
68°
59°
26
Hist. Avg.
64°
54°
27
Hist. Avg.
64°
54°
28
Hist. Avg.
64°
54°
29
Hist. Avg.
64°
54°
30
Hist. Avg.
64°
54°
31
Hist. Avg.
64°
54°
1
Hist. Avg.
63°
54°
2
Hist. Avg.
63°
53°
3
Hist. Avg.
63°
53°
4
Hist. Avg.
63°
53°
5
Hist. Avg.
63°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in St Ives
St Ives's August 2026 forecast shows daily high temperatures ranging from 64° to 70°, with overnight lows between 56° and 62°. The average high for August is 66° with an average low of 59°. 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 St Ives. See also: September | October | November.