Average data for 10 years
1 October
Tuesday
+20°
+16°
2 October
Wednesday
+19°
+15°
3 October
Thursday
+20°
+14°
4 October
Friday
+22°
+16°
5 October
Saturday
+21°
+16°
6 October
Sunday
+21°
+16°
7 October
Monday
+21°
+17°
8 October
Tuesday
+19°
+15°
9 October
Wednesday
+20°
+15°
10 October
Thursday
+19°
+14°
11 October
Friday
+20°
+15°
12 October
Saturday
+20°
+15°
13 October
Sunday
+19°
+14°
14 October
Monday
+17°
+15°
15 October
Tuesday
+19°
+13°
16 October
Wednesday
+17°
+13°
17 October
Thursday
+17°
+12°
18 October
Friday
+18°
+11°
19 October
Saturday
+18°
+12°
20 October
Sunday
+18°
+13°
21 October
Monday
+18°
+13°
22 October
Tuesday
+18°
+14°
23 October
Wednesday
+17°
+14°
24 October
Thursday
+18°
+13°
25 October
Friday
+18°
+14°
26 October
Saturday
+15°
+11°
27 October
Sunday
+12°
+10°
28 October
Monday
+13°
+7°
29 October
Tuesday
+16°
+10°
30 October
Wednesday
+14°
+11°
31 October
Thursday
+15°
+8°
Cities with similar weather in October
China
Beijing
Tajikistan
Dushanbe
South Korea
Seoul
Uzbekistan
Samarkand
Kazakhstan
Taraz
In October, the weather in O'Fallon is typically warm. Average daily high temperature in October is about 18 degrees above zero. On average, O'Fallon has 14 sunny, 14 partly cloudy, and 3 rainy days in October. The rains are usually light.