Average data for 10 years
1 September
Sunday
+18°
+10°
2 September
Monday
+18°
+11°
3 September
Tuesday
+17°
+10°
4 September
Wednesday
+14°
+8°
5 September
Thursday
+16°
+9°
6 September
Friday
+16°
+9°
7 September
Saturday
+16°
+9°
8 September
Sunday
+16°
+8°
9 September
Monday
+16°
+9°
10 September
Tuesday
+16°
+8°
11 September
Wednesday
+17°
+8°
12 September
Thursday
+15°
+9°
13 September
Friday
+14°
+7°
14 September
Saturday
+14°
+8°
15 September
Sunday
+14°
+9°
16 September
Monday
+14°
+8°
17 September
Tuesday
+14°
+8°
18 September
Wednesday
+15°
+8°
19 September
Thursday
+14°
+8°
20 September
Friday
+14°
+8°
21 September
Saturday
+13°
+7°
22 September
Sunday
+14°
+7°
23 September
Monday
+14°
+8°
24 September
Tuesday
+15°
+9°
25 September
Wednesday
+15°
+8°
26 September
Thursday
+14°
+7°
27 September
Friday
+15°
+9°
28 September
Saturday
+15°
+8°
29 September
Sunday
+13°
+7°
30 September
Monday
+11°
+5°
Cities with similar weather in September
Belarus
Minsk
Belarus
Mogilev
Finland
Helsinki
Latvia
Riga
Czech Republic
Karlovy Vary
In September, the weather in Big Sky is typically warm. Average daily high temperature in September is about 15 degrees above zero. On average, Big Sky has 12 sunny, 9 rainy, and 9 partly cloudy days in September. The rains are usually heavy.