S
M
T
W
T
F
S
27
36°
17°
28
34°
15°
29
34°
14°
30
33°
6°
31
30°
2°
1
24°
3°
2
22°
15°
3
29°
13°
4
35°
17°
5
36°
10°
6
34°
3°
7
30°
2°
8
21°
8°
9
23°
8°
10
29°
2°
11
31°
-3°
12
23°
2°
13
19°
-1°
14
21°
3°
15
20°
8°
16
29°
2°
17
24°
0°
18
21°
1°
19
21°
5°
20
32°
16°
21
33°
16°
22
34°
15°
23
33°
15°
24
32°
16°
25
31°
17°
26
33°
14°
27
34°
9°
28
30°
8°
29
29°
11°
30
30°
18°
31
Hist. Avg.
34°
12°
1
Hist. Avg.
34°
12°
2
Hist. Avg.
34°
12°
3
Hist. Avg.
34°
13°
4
Hist. Avg.
34°
13°
5
Hist. Avg.
34°
13°
6
Hist. Avg.
35°
13°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Foster
Foster's January 2027 forecast shows daily high temperatures ranging from 19° to 36°, with overnight lows between -3° and 18°. The average high for January is 29° with an average low of 9°. 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 Foster. See also: February | March | April.
