Average data for 10 years
1 July
Tuesday
+28°
+23°
2 July
Wednesday
+28°
+21°
3 July
Thursday
+27°
+21°
4 July
Friday
+28°
+22°
5 July
Saturday
+31°
+23°
6 July
Sunday
+30°
+25°
7 July
Monday
+30°
+25°
8 July
Tuesday
+30°
+25°
9 July
Wednesday
+30°
+24°
10 July
Thursday
+31°
+25°
11 July
Friday
+31°
+25°
12 July
Saturday
+31°
+25°
13 July
Sunday
+31°
+24°
14 July
Monday
+30°
+23°
15 July
Tuesday
+31°
+23°
16 July
Wednesday
+30°
+24°
17 July
Thursday
+31°
+25°
18 July
Friday
+31°
+26°
19 July
Saturday
+32°
+26°
20 July
Sunday
+31°
+25°
21 July
Monday
+33°
+25°
22 July
Tuesday
+31°
+27°
23 July
Wednesday
+31°
+25°
24 July
Thursday
+30°
+24°
25 July
Friday
+31°
+24°
26 July
Saturday
+30°
+25°
27 July
Sunday
+31°
+23°
28 July
Monday
+28°
+23°
29 July
Tuesday
+28°
+23°
30 July
Wednesday
+28°
+23°
31 July
Thursday
+30°
+23°
Cities with similar weather in July
Greece
Athens
Jordan
Aqaba
Israel
Eylat
Greece
Thessaloniki
Kazakhstan
Taraz
July in O'Fallon is the sunniest and the hottest month of the year. In July, the weather in O'Fallon is typically hot. Average daily high temperature in July is about 30 degrees above zero. On average, O'Fallon has 22 sunny, 5 partly cloudy, and 4 rainy days in July. The rains are usually heavy.