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September weather forecast in Iowa City
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
1
+26
+20
1 September, sun
+26
+20
Feels like
+26
741 mmHg
56%
6.1
m/s
SE
1 September, Sunday. day, 26°; night, 20°; clear
2
+26
+20
2 September, mon
+26
+20
Feels like
+25
741 mmHg
58%
6
m/s
W
2 September, Monday. day, 26°; night, 20°; clear
3
+25
+20
3 September, tue
+25
+20
Feels like
+24
742 mmHg
57%
6.5
m/s
W
3 September, Tuesday. day, 25°; night, 20°; partly cloudy
4
+24
+19
4 September, wed
+24
+19
Feels like
+22
742 mmHg
58%
6.6
m/s
NE
4 September, Wednesday. day, 24°; night, 19°; partly cloudy
5
+25
+18
5 September, thu
+25
+18
Feels like
+23
742 mmHg
55%
6
m/s
S
5 September, Thursday. day, 25°; night, 18°; clear
6
+25
+19
6 September, fri
+25
+19
Feels like
+23
742 mmHg
52%
6.3
m/s
W
6 September, Friday. day, 25°; night, 19°; clear
7
+24
+19
7 September, sat
+24
+19
Feels like
+23
742 mmHg
61%
5.8
m/s
S
7 September, Saturday. day, 24°; night, 19°; clear
8
+25
+18
8 September, sun
+25
+18
Feels like
+24
742 mmHg
60%
5.5
m/s
E
8 September, Sunday. day, 25°; night, 18°; clear
9
+24
+19
9 September, mon
+24
+19
Feels like
+23
742 mmHg
58%
5.4
m/s
SE
9 September, Monday. day, 24°; night, 19°; clear
10
+22
+17
10 September, tue
+22
+17
Feels like
+20
743 mmHg
55%
6
m/s
NW
10 September, Tuesday. day, 22°; night, 17°; clear
11
+23
+17
11 September, wed
+23
+17
Feels like
+21
743 mmHg
54%
6
m/s
SW
11 September, Wednesday. day, 23°; night, 17°; clear
12
+23
+17
12 September, thu
+23
+17
Feels like
+21
742 mmHg
54%
5.5
m/s
S
12 September, Thursday. day, 23°; night, 17°; clear
13
+22
+17
13 September, fri
+22
+17
Feels like
+19
742 mmHg
56%
6.1
m/s
S
13 September, Friday. day, 22°; night, 17°; partly cloudy
14
+21
+17
14 September, sat
+21
+17
Feels like
+19
743 mmHg
58%
5.9
m/s
SE
14 September, Saturday. day, 21°; night, 17°; partly cloudy
15
+22
+16
15 September, sun
+22
+16
Feels like
+19
745 mmHg
60%
6
m/s
SE
15 September, Sunday. day, 22°; night, 16°; clear
16
+22
+15
16 September, mon
+22
+15
Feels like
+20
743 mmHg
62%
5.5
m/s
S
16 September, Monday. day, 22°; night, 15°; clear
17
+22
+17
17 September, tue
+22
+17
Feels like
+21
742 mmHg
70%
5.8
m/s
S
17 September, Tuesday. day, 22°; night, 17°; rain
18
+22
+17
18 September, wed
+22
+17
Feels like
+21
742 mmHg
63%
6.3
m/s
S
18 September, Wednesday. day, 22°; night, 17°; clear
19
+24
+18
19 September, thu
+24
+18
Feels like
+23
740 mmHg
60%
7.1
m/s
S
19 September, Thursday. day, 24°; night, 18°; clear
20
+23
+18
20 September, fri
+23
+18
Feels like
+21
741 mmHg
55%
7
m/s
W
20 September, Friday. day, 23°; night, 18°; clear
21
+22
+18
21 September, sat
+22
+18
Feels like
+21
743 mmHg
64%
5.8
m/s
S
21 September, Saturday. day, 22°; night, 18°; partly cloudy
22
+23
+17
22 September, sun
+23
+17
Feels like
+21
743 mmHg
56%
6.4
m/s
S
22 September, Sunday. day, 23°; night, 17°; rain
23
+22
+18
23 September, mon
+22
+18
Feels like
+20
744 mmHg
56%
5.8
m/s
SE
23 September, Monday. day, 22°; night, 18°; partly cloudy
24
+22
+17
24 September, tue
+22
+17
Feels like
+21
743 mmHg
63%
5.6
m/s
E
24 September, Tuesday. day, 22°; night, 17°; clear
25
+22
+16
25 September, wed
+22
+16
Feels like
+20
742 mmHg
67%
6
m/s
E
25 September, Wednesday. day, 22°; night, 16°; rain
26
+22
+16
26 September, thu
+22
+16
Feels like
+19
741 mmHg
55%
6.9
m/s
W
26 September, Thursday. day, 22°; night, 16°; clear
27
+21
+16
27 September, fri
+21
+16
Feels like
+19
741 mmHg
56%
6.1
m/s
W
27 September, Friday. day, 21°; night, 16°; partly cloudy
28
+20
+16
28 September, sat
+20
+16
Feels like
+17
742 mmHg
57%
7
m/s
N
28 September, Saturday. day, 20°; night, 16°; clear
29
+19
+14
29 September, sun
+19
+14
Feels like
+15
744 mmHg
56%
7.5
m/s
N
29 September, Sunday. day, 19°; night, 14°; clear
30
+18
+13
30 September, mon
+18
+13
Feels like
+15
742 mmHg
61%
6.5
m/s
E
30 September, Monday. day, 18°; night, 13°; clear
1
+18
+14
1 October, tue
+18
+14
Feels like
+14
741 mmHg
62%
6.5
m/s
NE
1 October, Tuesday. day, 18°; night, 14°; partly cloudy
2
+18
+14
2 October, wed
+18
+14
Feels like
+15
742 mmHg
62%
6.8
m/s
NW
2 October, Wednesday. day, 18°; night, 14°; clear
3
+18
+13
3 October, thu
+18
+13
Feels like
+15
743 mmHg
56%
6.5
m/s
E
3 October, Thursday. day, 18°; night, 13°; clear
4
+18
+13
4 October, fri
+18
+13
Feels like
+15
743 mmHg
62%
5.8
m/s
S
4 October, Friday. day, 18°; night, 13°; clear
5
+18
+13
5 October, sat
+18
+13
Feels like
+15
740 mmHg
62%
7.5
m/s
SW
5 October, Saturday. day, 18°; night, 13°; partly cloudy
Average data for 10 years
Iowa City September
20
sunny days
3
days with precipitation
7
cloudy days
20 sunny days; 3 days with precipitation; 7 cloudy days;
58
%
air humidity
4.5
m/s
Wind
S
63
mm of precipitation
(8% of annual average)
air humidity 58%; 63 millimeters of precipitation (8% of annual average); Wind southerly 4.5 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
SE
W
W
NE
S
W
S
E
SE
NW
SW
S
S
SE
SE
S
S
S
S
W
S
S
SE
E
E
W
W
N
N
E
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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