Average data for 10 years
1 September
Sunday
+25°
+18°
2 September
Monday
+23°
+16°
3 September
Tuesday
+23°
+17°
4 September
Wednesday
+20°
+15°
5 September
Thursday
+22°
+15°
6 September
Friday
+21°
+15°
7 September
Saturday
+22°
+15°
8 September
Sunday
+21°
+15°
9 September
Monday
+22°
+15°
10 September
Tuesday
+22°
+15°
11 September
Wednesday
+23°
+15°
12 September
Thursday
+20°
+13°
13 September
Friday
+18°
+12°
14 September
Saturday
+22°
+16°
15 September
Sunday
+21°
+15°
16 September
Monday
+21°
+15°
17 September
Tuesday
+20°
+15°
18 September
Wednesday
+21°
+14°
19 September
Thursday
+21°
+15°
20 September
Friday
+20°
+14°
21 September
Saturday
+19°
+14°
22 September
Sunday
+21°
+15°
23 September
Monday
+22°
+16°
24 September
Tuesday
+23°
+17°
25 September
Wednesday
+22°
+15°
26 September
Thursday
+19°
+14°
27 September
Friday
+20°
+14°
28 September
Saturday
+21°
+15°
29 September
Sunday
+20°
+14°
30 September
Monday
+18°
+12°
Cities with similar weather in September
France
Paris
Austria
Vienna
Switzerland
Zurich
France
Strasbourg
Slovenia
Rogaška Slatina
In September, the weather in Great Falls is typically warm. Average daily high temperature in September is about 21 degrees above zero. On average, Great Falls has 17 sunny, 10 partly cloudy, and 3 rainy days in September. The rains are usually light. September as well as July and August is considered the most comfortable time to visit Great Falls.