Average data for 10 years
1 September
Sunday
+21°
+13°
2 September
Monday
+19°
+13°
3 September
Tuesday
+20°
+13°
4 September
Wednesday
+18°
+13°
5 September
Thursday
+19°
+12°
6 September
Friday
+19°
+12°
7 September
Saturday
+18°
+13°
8 September
Sunday
+19°
+13°
9 September
Monday
+19°
+12°
10 September
Tuesday
+20°
+13°
11 September
Wednesday
+21°
+13°
12 September
Thursday
+20°
+11°
13 September
Friday
+18°
+12°
14 September
Saturday
+20°
+13°
15 September
Sunday
+18°
+14°
16 September
Monday
+18°
+11°
17 September
Tuesday
+17°
+12°
18 September
Wednesday
+17°
+11°
19 September
Thursday
+17°
+11°
20 September
Friday
+17°
+11°
21 September
Saturday
+16°
+11°
22 September
Sunday
+17°
+12°
23 September
Monday
+18°
+13°
24 September
Tuesday
+19°
+12°
25 September
Wednesday
+17°
+11°
26 September
Thursday
+17°
+11°
27 September
Friday
+18°
+12°
28 September
Saturday
+18°
+11°
29 September
Sunday
+16°
+10°
30 September
Monday
+15°
+9°
Cities with similar weather in September
United Kingdom
London
Netherlands
Amsterdam
Belgium
Brussels
Germany
Hanover
Germany
Dortmund
In September, the weather in Missoula is typically warm. Average daily high temperature in September is about 18 degrees above zero. On average, Missoula has 17 sunny, 11 partly cloudy, and 2 rainy days in September. The rains are usually light.