S
M
T
W
T
F
S
27
29°
10°
28
29°
7°
29
28°
11°
30
26°
20°
31
29°
20°
1
35°
15°
2
31°
16°
3
25°
13°
4
27°
23°
5
30°
24°
6
33°
25°
7
40°
16°
8
41°
11°
9
27°
12°
10
19°
13°
11
22°
11°
12
20°
8°
13
20°
6°
14
18°
8°
15
21°
13°
16
22°
14°
17
24°
21°
18
28°
13°
19
31°
8°
20
23°
9°
21
19°
18°
22
27°
23°
23
33°
23°
24
34°
26°
25
35°
24°
26
38°
22°
27
35°
23°
28
36°
21°
29
36°
21°
30
32°
22°
31
Hist. Avg.
29°
14°
1
Hist. Avg.
29°
14°
2
Hist. Avg.
29°
14°
3
Hist. Avg.
29°
14°
4
Hist. Avg.
29°
14°
5
Hist. Avg.
29°
14°
6
Hist. Avg.
29°
14°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in London
London's January 2027 forecast shows daily high temperatures ranging from 18° to 41°, with overnight lows between 6° and 26°. The average high for January is 29° with an average low of 16°. 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 London. See also: February | March | April.