Average data for 10 years
1 April
Monday
+17°
+12°
2 April
Tuesday
+17°
+11°
3 April
Wednesday
+16°
+12°
4 April
Thursday
+16°
+12°
5 April
Friday
+16°
+10°
6 April
Saturday
+16°
+12°
7 April
Sunday
+18°
+12°
8 April
Monday
+20°
+13°
9 April
Tuesday
+19°
+13°
10 April
Wednesday
+17°
+13°
11 April
Thursday
+16°
+12°
12 April
Friday
+17°
+12°
13 April
Saturday
+16°
+12°
14 April
Sunday
+19°
+12°
15 April
Monday
+17°
+13°
16 April
Tuesday
+20°
+12°
17 April
Wednesday
+21°
+15°
18 April
Thursday
+20°
+15°
19 April
Friday
+18°
+13°
20 April
Saturday
+17°
+12°
21 April
Sunday
+19°
+12°
22 April
Monday
+19°
+14°
23 April
Tuesday
+20°
+13°
24 April
Wednesday
+22°
+14°
25 April
Thursday
+22°
+16°
26 April
Friday
+19°
+14°
27 April
Saturday
+17°
+13°
28 April
Sunday
+20°
+13°
29 April
Monday
+20°
+15°
30 April
Tuesday
+19°
+14°
In April, the weather in St. Louis is typically warm. Average daily high temperature in April is about 18 degrees above zero. On average, St. Louis has 11 rainy, 10 sunny, and 9 partly cloudy days in April. The rains are usually heavy.