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April weather forecast in O'Fallon
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun
Sunday
Mon
Monday
Tue
Tuesday
Wed
Wednesday
Thu
Thursday
Fri
Friday
Sat
Saturday
30
+17
+8
30 March, sun
+17
+8
Feels like
+8
747 mmHg
65%
5.3
m/s
S
30 March, Sunday. day, 17°; night, 8°; partly cloudy
31
+17
+8
31 March, mon
+17
+8
Feels like
+8
745 mmHg
64%
6
m/s
SW
31 March, Monday. day, 17°; night, 8°; rain
1
+17
+7
1 April, tue
+17
+7
Feels like
+6
747 mmHg
58%
5.5
m/s
SW
1 April, Tuesday. day, 17°; night, 7°; clear
2
+18
+7
2 April, wed
+18
+7
Feels like
+8
747 mmHg
61%
5.2
m/s
S
2 April, Wednesday. day, 18°; night, 7°; clear
3
+19
+9
3 April, thu
+19
+9
Feels like
+9
745 mmHg
64%
5.7
m/s
S
3 April, Thursday. day, 19°; night, 9°; rain
4
+17
+8
4 April, fri
+17
+8
Feels like
+7
747 mmHg
62%
5.7
m/s
SW
4 April, Friday. day, 17°; night, 8°; partly cloudy
5
+17
+6
5 April, sat
+17
+6
Feels like
+7
747 mmHg
63%
5.2
m/s
S
5 April, Saturday. day, 17°; night, 6°; clear
6
+18
+8
6 April, sun
+18
+8
Feels like
+8
746 mmHg
60%
5.7
m/s
S
6 April, Sunday. day, 18°; night, 8°; overcast
7
+18
+9
7 April, mon
+18
+9
Feels like
+9
745 mmHg
61%
5.4
m/s
S
7 April, Monday. day, 18°; night, 9°; rain
8
+18
+9
8 April, tue
+18
+9
Feels like
+8
745 mmHg
64%
5.5
m/s
SW
8 April, Tuesday. day, 18°; night, 9°; partly cloudy
9
+18
+8
9 April, wed
+18
+8
Feels like
+8
747 mmHg
58%
5.1
m/s
S
9 April, Wednesday. day, 18°; night, 8°; clear
10
+20
+9
10 April, thu
+20
+9
Feels like
+9
746 mmHg
61%
5.7
m/s
S
10 April, Thursday. day, 20°; night, 9°; partly cloudy
11
+20
+10
11 April, fri
+20
+10
Feels like
+10
745 mmHg
61%
5.6
m/s
S
11 April, Friday. day, 20°; night, 10°; rain
12
+18
+9
12 April, sat
+18
+9
Feels like
+9
747 mmHg
58%
5.8
m/s
SW
12 April, Saturday. day, 18°; night, 9°; clear
13
+19
+9
13 April, sun
+19
+9
Feels like
+9
748 mmHg
60%
4.8
m/s
S
13 April, Sunday. day, 19°; night, 9°; partly cloudy
14
+20
+10
14 April, mon
+20
+10
Feels like
+10
747 mmHg
61%
5.3
m/s
S
14 April, Monday. day, 20°; night, 10°; clear
15
+21
+10
15 April, tue
+21
+10
Feels like
+11
746 mmHg
61%
5.6
m/s
S
15 April, Tuesday. day, 21°; night, 10°; clear
16
+20
+10
16 April, wed
+20
+10
Feels like
+10
747 mmHg
62%
5.9
m/s
S
16 April, Wednesday. day, 20°; night, 10°; clear
17
+20
+10
17 April, thu
+20
+10
Feels like
+10
748 mmHg
63%
4.9
m/s
SW
17 April, Thursday. day, 20°; night, 10°; clear
18
+21
+11
18 April, fri
+21
+11
Feels like
+12
747 mmHg
64%
5.2
m/s
S
18 April, Friday. day, 21°; night, 11°; partly cloudy
19
+21
+11
19 April, sat
+21
+11
Feels like
+12
746 mmHg
63%
5.6
m/s
S
19 April, Saturday. day, 21°; night, 11°; overcast
20
+20
+11
20 April, sun
+20
+11
Feels like
+11
746 mmHg
64%
5.5
m/s
SW
20 April, Sunday. day, 20°; night, 11°; rain
21
+19
+9
21 April, mon
+19
+9
Feels like
+10
747 mmHg
63%
5.2
m/s
S
21 April, Monday. day, 19°; night, 9°; partly cloudy
22
+20
+10
22 April, tue
+20
+10
Feels like
+11
747 mmHg
62%
5.2
m/s
S
22 April, Tuesday. day, 20°; night, 10°; clear
23
+19
+11
23 April, wed
+19
+11
Feels like
+11
747 mmHg
64%
4.8
m/s
S
23 April, Wednesday. day, 19°; night, 11°; rain
24
+20
+10
24 April, thu
+20
+10
Feels like
+11
746 mmHg
67%
4.9
m/s
S
24 April, Thursday. day, 20°; night, 10°; rain
25
+20
+11
25 April, fri
+20
+11
Feels like
+12
745 mmHg
68%
5.2
m/s
S
25 April, Friday. day, 20°; night, 11°; rain
26
+20
+11
26 April, sat
+20
+11
Feels like
+11
746 mmHg
63%
5.3
m/s
S
26 April, Saturday. day, 20°; night, 11°; overcast
27
+20
+10
27 April, sun
+20
+10
Feels like
+11
746 mmHg
64%
5.2
m/s
S
27 April, Sunday. day, 20°; night, 10°; rain
28
+20
+11
28 April, mon
+20
+11
Feels like
+12
746 mmHg
69%
5.2
m/s
S
28 April, Monday. day, 20°; night, 11°; rain
29
+20
+11
29 April, tue
+20
+11
Feels like
+12
746 mmHg
70%
4.9
m/s
S
29 April, Tuesday. day, 20°; night, 11°; rain
30
+22
+12
30 April, wed
+22
+12
Feels like
+13
745 mmHg
67%
5.7
m/s
S
30 April, Wednesday. day, 22°; night, 12°; rain
1
+21
+13
1 May, thu
+21
+13
Feels like
+13
745 mmHg
67%
5.6
m/s
S
1 May, Thursday. day, 21°; night, 13°; rain
2
+21
+12
2 May, fri
+21
+12
Feels like
+14
745 mmHg
67%
4.8
m/s
SW
2 May, Friday. day, 21°; night, 12°; partly cloudy
3
+21
+12
3 May, sat
+21
+12
Feels like
+13
746 mmHg
68%
4.69
m/s
S
3 May, Saturday. day, 21°; night, 12°; rain
Average data for 10 years
O'Fallon April
10
sunny days
11
days with precipitation
9
cloudy days
10 sunny days; 11 days with precipitation; 9 cloudy days;
63
%
air humidity
3.6
m/s
Wind
S
111
mm of precipitation
(11% of annual average)
air humidity 63%; 111 millimeters of precipitation (11% of annual average); Wind southerly 3.6 Meters per second
Weather graphs for April
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
SW
S
S
SW
S
S
S
SW
S
S
S
SW
S
S
S
S
SW
S
S
SW
S
S
S
S
S
S
S
S
S
S
1
Average data for 10 years
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Daytime temperature
Night-time temperature
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