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September weather forecast in Altoona
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
31
+24
+18
31 August, sun
+24
+18
Feels like
+24
721 mmHg
60%
4.6
m/s
NW
31 August, Sunday. day, 24°; night, 18°; clear
1
+25
+19
1 September, mon
+25
+19
Feels like
+25
720 mmHg
67%
4.4
m/s
NW
1 September, Monday. day, 25°; night, 19°; partly cloudy
2
+24
+19
2 September, tue
+24
+19
Feels like
+24
719 mmHg
63%
4.9
m/s
NW
2 September, Tuesday. day, 24°; night, 19°; clear
3
+24
+18
3 September, wed
+24
+18
Feels like
+24
719 mmHg
62%
5
m/s
NW
3 September, Wednesday. day, 24°; night, 18°; clear
4
+23
+18
4 September, thu
+23
+18
Feels like
+23
720 mmHg
68%
5.3
m/s
W
4 September, Thursday. day, 23°; night, 18°; partly cloudy
5
+23
+17
5 September, fri
+23
+17
Feels like
+22
721 mmHg
64%
5.4
m/s
S
5 September, Friday. day, 23°; night, 17°; rain
6
+23
+17
6 September, sat
+23
+17
Feels like
+22
720 mmHg
62%
5
m/s
W
6 September, Saturday. day, 23°; night, 17°; clear
7
+23
+18
7 September, sun
+23
+18
Feels like
+22
720 mmHg
68%
5.5
m/s
NW
7 September, Sunday. day, 23°; night, 18°; clear
8
+22
+16
8 September, mon
+22
+16
Feels like
+21
720 mmHg
70%
5
m/s
W
8 September, Monday. day, 22°; night, 16°; partly cloudy
9
+21
+16
9 September, tue
+21
+16
Feels like
+20
720 mmHg
73%
5.1
m/s
NW
9 September, Tuesday. day, 21°; night, 16°; clear
10
+21
+15
10 September, wed
+21
+15
Feels like
+20
721 mmHg
68%
5.1
m/s
N
10 September, Wednesday. day, 21°; night, 15°; rain
11
+19
+16
11 September, thu
+19
+16
Feels like
+18
720 mmHg
75%
5.1
m/s
W
11 September, Thursday. day, 19°; night, 16°; rain
12
+21
+15
12 September, fri
+21
+15
Feels like
+19
719 mmHg
68%
5.9
m/s
W
12 September, Friday. day, 21°; night, 15°; clear
13
+21
+14
13 September, sat
+21
+14
Feels like
+20
721 mmHg
66%
4.8
m/s
W
13 September, Saturday. day, 21°; night, 14°; clear
14
+22
+15
14 September, sun
+22
+15
Feels like
+21
721 mmHg
62%
5
m/s
NW
14 September, Sunday. day, 22°; night, 15°; clear
15
+18
+15
15 September, mon
+18
+15
Feels like
+16
722 mmHg
67%
6.1
m/s
N
15 September, Monday. day, 18°; night, 15°; rain
16
+18
+14
16 September, tue
+18
+14
Feels like
+17
723 mmHg
68%
4
m/s
E
16 September, Tuesday. day, 18°; night, 14°; partly cloudy
17
+20
+14
17 September, wed
+20
+14
Feels like
+19
722 mmHg
62%
4
m/s
E
17 September, Wednesday. day, 20°; night, 14°; clear
18
+21
+15
18 September, thu
+21
+15
Feels like
+19
721 mmHg
69%
6
m/s
S
18 September, Thursday. day, 21°; night, 15°; partly cloudy
19
+20
+14
19 September, fri
+20
+14
Feels like
+19
722 mmHg
67%
5.1
m/s
NE
19 September, Friday. day, 20°; night, 14°; clear
20
+21
+14
20 September, sat
+21
+14
Feels like
+20
721 mmHg
68%
5.3
m/s
S
20 September, Saturday. day, 21°; night, 14°; clear
21
+21
+15
21 September, sun
+21
+15
Feels like
+21
722 mmHg
68%
5.3
m/s
NW
21 September, Sunday. day, 21°; night, 15°; partly cloudy
22
+21
+16
22 September, mon
+21
+16
Feels like
+21
722 mmHg
63%
5.3
m/s
NE
22 September, Monday. day, 21°; night, 16°; clear
23
+22
+16
23 September, tue
+22
+16
Feels like
+21
723 mmHg
60%
5.3
m/s
N
23 September, Tuesday. day, 22°; night, 16°; partly cloudy
24
+20
+16
24 September, wed
+20
+16
Feels like
+19
723 mmHg
62%
5.5
m/s
NE
24 September, Wednesday. day, 20°; night, 16°; partly cloudy
25
+19
+14
25 September, thu
+19
+14
Feels like
+17
722 mmHg
62%
5.6
m/s
E
25 September, Thursday. day, 19°; night, 14°; clear
26
+20
+14
26 September, fri
+20
+14
Feels like
+19
719 mmHg
77%
5.6
m/s
SE
26 September, Friday. day, 20°; night, 14°; rain
27
+19
+16
27 September, sat
+19
+16
Feels like
+17
718 mmHg
75%
5.3
m/s
SW
27 September, Saturday. day, 19°; night, 16°; rain
28
+18
+15
28 September, sun
+18
+15
Feels like
+16
717 mmHg
75%
5.1
m/s
W
28 September, Sunday. day, 18°; night, 15°; rain
29
+15
+14
29 September, mon
+15
+14
Feels like
+13
718 mmHg
77%
5.1
m/s
N
29 September, Monday. day, 15°; night, 14°; overcast
30
+15
+11
30 September, tue
+15
+11
Feels like
+12
719 mmHg
75%
5.6
m/s
N
30 September, Tuesday. day, 15°; night, 11°; rain
1
+15
+10
1 October, wed
+15
+10
Feels like
+12
719 mmHg
75%
5
m/s
NE
1 October, Wednesday. day, 15°; night, 10°; partly cloudy
2
+15
+11
2 October, thu
+15
+11
Feels like
+12
719 mmHg
79%
5.8
m/s
SE
2 October, Thursday. day, 15°; night, 11°; rain
3
+16
+12
3 October, fri
+16
+12
Feels like
+13
720 mmHg
75%
5.9
m/s
W
3 October, Friday. day, 16°; night, 12°; partly cloudy
4
+16
+11
4 October, sat
+16
+11
Feels like
+15
721 mmHg
73%
5
m/s
NW
4 October, Saturday. day, 16°; night, 11°; partly cloudy
Average data for 10 years
Altoona September
13
sunny days
8
days with precipitation
9
cloudy days
13 sunny days; 8 days with precipitation; 9 cloudy days;
68
%
air humidity
3.7
m/s
Wind
NW
70
mm of precipitation
(9% of annual average)
air humidity 68%; 70 millimeters of precipitation (9% of annual average); Wind north-westerly 3.7 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
NW
NW
NW
W
S
W
NW
W
NW
N
W
W
W
NW
N
E
E
S
NE
S
NW
NE
N
NE
E
SE
SW
W
N
N
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
Cities near you
Washington
Toronto
Philadelphia
Brooklyn
Baltimore
Buffalo
Macedonia
Cleveland
Burlington
Cities with similar weather in September
Toronto
Boston
Minneapolis
Detroit
Milwaukee
Hamilton
Hiroshima
London
Saint Paul
