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