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