S
M
T
W
T
F
S
26
96°
58°
27
96°
63°
28
96°
63°
29
94°
66°
30
95°
65°
31
95°
64°
1
94°
64°
2
93°
62°
3
91°
61°
4
88°
57°
5
86°
60°
6
90°
61°
7
91°
62°
8
91°
61°
9
90°
62°
10
91°
61°
11
89°
60°
12
90°
61°
13
90°
61°
14
89°
60°
15
87°
60°
16
89°
59°
17
89°
60°
18
86°
60°
19
85°
58°
20
87°
59°
21
88°
59°
22
87°
58°
23
88°
59°
24
88°
59°
25
87°
58°
26
88°
59°
27
86°
58°
28
86°
58°
29
85°
57°
30
86°
58°
31
84°
57°
1
83°
57°
2
83°
56°
3
84°
56°
4
80°
54°
5
81°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
Fishing-December Weather in Blackfoot
Blackfoot's Fishing-December 2026 forecast shows daily high temperatures ranging from 80° to 96°, with overnight lows between 54° and 66°. The average high for Fishing-December is 89° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how Fishing-December weather will actually feel in Blackfoot. See also: September | October | November.