S
M
T
W
T
F
S
28
42°
30°
29
42°
29°
30
46°
26°
31
45°
26°
1
42°
29°
2
50°
39°
3
51°
41°
4
47°
37°
5
46°
32°
6
45°
31°
7
39°
33°
8
45°
30°
9
47°
34°
10
46°
31°
11
50°
38°
12
57°
36°
13
50°
35°
14
49°
36°
15
55°
34°
16
53°
28°
17
51°
25°
18
48°
24°
19
51°
24°
20
44°
21°
21
44°
20°
22
42°
20°
23
44°
24°
24
46°
19°
25
48°
16°
26
39°
24°
27
42°
25°
28
49°
35°
29
51°
41°
30
50°
40°
31
58°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Cathlamet
Cathlamet's January 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for January is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Cathlamet. See also: February | March | April.
