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September weather forecast in Decorah
30 days
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Feb
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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
+24
+19
1 September, sun
+24
+19
Feels like
+22
736 mmHg
58%
6.6
m/s
SW
1 September, Sunday. day, 24°; night, 19°; clear
2
+25
+17
2 September, mon
+25
+17
Feels like
+24
735 mmHg
58%
6
m/s
SW
2 September, Monday. day, 25°; night, 17°; clear
3
+24
+18
3 September, tue
+24
+18
Feels like
+22
736 mmHg
56%
6.5
m/s
W
3 September, Tuesday. day, 24°; night, 18°; partly cloudy
4
+22
+17
4 September, wed
+22
+17
Feels like
+20
736 mmHg
58%
6
m/s
E
4 September, Wednesday. day, 22°; night, 17°; clear
5
+24
+16
5 September, thu
+24
+16
Feels like
+22
736 mmHg
54%
5.8
m/s
S
5 September, Thursday. day, 24°; night, 16°; clear
6
+24
+17
6 September, fri
+24
+17
Feels like
+22
736 mmHg
52%
6.3
m/s
W
6 September, Friday. day, 24°; night, 17°; partly cloudy
7
+21
+17
7 September, sat
+21
+17
Feels like
+20
736 mmHg
64%
5.5
m/s
N
7 September, Saturday. day, 21°; night, 17°; partly cloudy
8
+23
+16
8 September, sun
+23
+16
Feels like
+22
736 mmHg
58%
6
m/s
SE
8 September, Sunday. day, 23°; night, 16°; clear
9
+23
+17
9 September, mon
+23
+17
Feels like
+21
736 mmHg
56%
6.3
m/s
SE
9 September, Monday. day, 23°; night, 17°; clear
10
+21
+15
10 September, tue
+21
+15
Feels like
+18
738 mmHg
56%
6
m/s
W
10 September, Tuesday. day, 21°; night, 15°; clear
11
+22
+16
11 September, wed
+22
+16
Feels like
+20
737 mmHg
56%
6
m/s
SW
11 September, Wednesday. day, 22°; night, 16°; clear
12
+21
+16
12 September, thu
+21
+16
Feels like
+19
737 mmHg
54%
6
m/s
W
12 September, Thursday. day, 21°; night, 16°; clear
13
+20
+15
13 September, fri
+20
+15
Feels like
+18
736 mmHg
56%
6
m/s
SW
13 September, Friday. day, 20°; night, 15°; clear
14
+21
+15
14 September, sat
+21
+15
Feels like
+18
738 mmHg
57%
6.3
m/s
S
14 September, Saturday. day, 21°; night, 15°; partly cloudy
15
+20
+16
15 September, sun
+20
+16
Feels like
+17
739 mmHg
58%
6.5
m/s
S
15 September, Sunday. day, 20°; night, 16°; clear
16
+21
+14
16 September, mon
+21
+14
Feels like
+19
737 mmHg
63%
5.9
m/s
S
16 September, Monday. day, 21°; night, 14°; clear
17
+20
+16
17 September, tue
+20
+16
Feels like
+18
736 mmHg
66%
6.1
m/s
W
17 September, Tuesday. day, 20°; night, 16°; rain
18
+21
+14
18 September, wed
+21
+14
Feels like
+18
736 mmHg
58%
6.5
m/s
S
18 September, Wednesday. day, 21°; night, 14°; partly cloudy
19
+23
+16
19 September, thu
+23
+16
Feels like
+20
734 mmHg
61%
8
m/s
SW
19 September, Thursday. day, 23°; night, 16°; clear
20
+21
+15
20 September, fri
+21
+15
Feels like
+18
735 mmHg
55%
7.1
m/s
W
20 September, Friday. day, 21°; night, 15°; partly cloudy
21
+21
+15
21 September, sat
+21
+15
Feels like
+19
737 mmHg
68%
5.8
m/s
S
21 September, Saturday. day, 21°; night, 15°; clear
22
+21
+16
22 September, sun
+21
+16
Feels like
+19
737 mmHg
64%
6.8
m/s
S
22 September, Sunday. day, 21°; night, 16°; rain
23
+20
+16
23 September, mon
+20
+16
Feels like
+17
738 mmHg
62%
6.1
m/s
S
23 September, Monday. day, 20°; night, 16°; partly cloudy
24
+20
+15
24 September, tue
+20
+15
Feels like
+18
738 mmHg
64%
5.5
m/s
SE
24 September, Tuesday. day, 20°; night, 15°; rain
25
+20
+15
25 September, wed
+20
+15
Feels like
+18
736 mmHg
62%
6
m/s
SE
25 September, Wednesday. day, 20°; night, 15°; clear
26
+21
+14
26 September, thu
+21
+14
Feels like
+18
735 mmHg
58%
6.6
m/s
SW
26 September, Thursday. day, 21°; night, 14°; clear
27
+19
+14
27 September, fri
+19
+14
Feels like
+16
734 mmHg
62%
6.9
m/s
W
27 September, Friday. day, 19°; night, 14°; partly cloudy
28
+18
+13
28 September, sat
+18
+13
Feels like
+14
737 mmHg
57%
7.1
m/s
N
28 September, Saturday. day, 18°; night, 13°; clear
29
+17
+11
29 September, sun
+17
+11
Feels like
+13
738 mmHg
56%
6.9
m/s
N
29 September, Sunday. day, 17°; night, 11°; clear
30
+16
+11
30 September, mon
+16
+11
Feels like
+12
737 mmHg
60%
7
m/s
E
30 September, Monday. day, 16°; night, 11°; clear
1
+16
+12
1 October, tue
+16
+12
Feels like
+12
736 mmHg
64%
6
m/s
NE
1 October, Tuesday. day, 16°; night, 12°; partly cloudy
2
+16
+12
2 October, wed
+16
+12
Feels like
+13
736 mmHg
62%
6.6
m/s
NW
2 October, Wednesday. day, 16°; night, 12°; clear
3
+15
+11
3 October, thu
+15
+11
Feels like
+12
738 mmHg
62%
5.5
m/s
SW
3 October, Thursday. day, 15°; night, 11°; clear
4
+16
+10
4 October, fri
+16
+10
Feels like
+13
736 mmHg
57%
5.4
m/s
S
4 October, Friday. day, 16°; night, 10°; clear
5
+16
+11
5 October, sat
+16
+11
Feels like
+12
733 mmHg
63%
7.4
m/s
SW
5 October, Saturday. day, 16°; night, 11°; partly cloudy
Average data for 10 years
Decorah September
19
sunny days
3
days with precipitation
8
cloudy days
19 sunny days; 3 days with precipitation; 8 cloudy days;
58
%
air humidity
4.8
m/s
Wind
SW
53
mm of precipitation
(7% of annual average)
air humidity 58%; 53 millimeters of precipitation (7% of annual average); Wind south-westerly 4.8 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
SW
SW
W
E
S
W
N
SE
SE
W
SW
W
SW
S
S
S
W
S
SW
W
S
S
S
SE
SE
SW
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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