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September weather forecast in Casper
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
+25
+18
1 September, sun
+25
+18
Feels like
+22
619 mmHg
37%
7.3
m/s
SW
1 September, Sunday. day, 25°; night, 18°; clear
2
+25
+18
2 September, mon
+25
+18
Feels like
+20
619 mmHg
31%
7
m/s
SW
2 September, Monday. day, 25°; night, 18°; clear
3
+24
+17
3 September, tue
+24
+17
Feels like
+20
619 mmHg
31%
6
m/s
W
3 September, Tuesday. day, 24°; night, 17°; clear
4
+24
+16
4 September, wed
+24
+16
Feels like
+19
618 mmHg
34%
7.1
m/s
SW
4 September, Wednesday. day, 24°; night, 16°; clear
5
+21
+16
5 September, thu
+21
+16
Feels like
+17
619 mmHg
37%
6.8
m/s
SW
5 September, Thursday. day, 21°; night, 16°; clear
6
+23
+17
6 September, fri
+23
+17
Feels like
+20
619 mmHg
33%
6.4
m/s
SW
6 September, Friday. day, 23°; night, 17°; clear
7
+22
+16
7 September, sat
+22
+16
Feels like
+17
619 mmHg
40%
7.5
m/s
SW
7 September, Saturday. day, 22°; night, 16°; clear
8
+22
+16
8 September, sun
+22
+16
Feels like
+18
619 mmHg
34%
7
m/s
SW
8 September, Sunday. day, 22°; night, 16°; clear
9
+21
+15
9 September, mon
+21
+15
Feels like
+17
620 mmHg
36%
6.6
m/s
W
9 September, Monday. day, 21°; night, 15°; partly cloudy
10
+20
+14
10 September, tue
+20
+14
Feels like
+16
621 mmHg
44%
6
m/s
W
10 September, Tuesday. day, 20°; night, 14°; partly cloudy
11
+21
+15
11 September, wed
+21
+15
Feels like
+17
620 mmHg
40%
6
m/s
SW
11 September, Wednesday. day, 21°; night, 15°; clear
12
+20
+14
12 September, thu
+20
+14
Feels like
+16
618 mmHg
43%
6.3
m/s
W
12 September, Thursday. day, 20°; night, 14°; clear
13
+20
+13
13 September, fri
+20
+13
Feels like
+16
618 mmHg
41%
7.3
m/s
SW
13 September, Friday. day, 20°; night, 13°; partly cloudy
14
+20
+14
14 September, sat
+20
+14
Feels like
+16
619 mmHg
46%
6.9
m/s
SW
14 September, Saturday. day, 20°; night, 14°; clear
15
+21
+15
15 September, sun
+21
+15
Feels like
+17
619 mmHg
37%
7
m/s
SW
15 September, Sunday. day, 21°; night, 15°; clear
16
+21
+14
16 September, mon
+21
+14
Feels like
+17
619 mmHg
36%
6.6
m/s
SW
16 September, Monday. day, 21°; night, 14°; clear
17
+22
+16
17 September, tue
+22
+16
Feels like
+18
618 mmHg
34%
6.6
m/s
SW
17 September, Tuesday. day, 22°; night, 16°; clear
18
+22
+15
18 September, wed
+22
+15
Feels like
+16
617 mmHg
30%
7.6
m/s
W
18 September, Wednesday. day, 22°; night, 15°; clear
19
+21
+13
19 September, thu
+21
+13
Feels like
+16
618 mmHg
31%
6.9
m/s
SW
19 September, Thursday. day, 21°; night, 13°; rain
20
+21
+15
20 September, fri
+21
+15
Feels like
+17
618 mmHg
31%
6
m/s
SW
20 September, Friday. day, 21°; night, 15°; partly cloudy
21
+20
+13
21 September, sat
+20
+13
Feels like
+15
617 mmHg
36%
6.8
m/s
W
21 September, Saturday. day, 20°; night, 13°; clear
22
+19
+14
22 September, sun
+19
+14
Feels like
+16
618 mmHg
43%
6
m/s
W
22 September, Sunday. day, 19°; night, 14°; clear
23
+20
+14
23 September, mon
+20
+14
Feels like
+16
619 mmHg
37%
6.6
m/s
SW
23 September, Monday. day, 20°; night, 14°; clear
24
+20
+14
24 September, tue
+20
+14
Feels like
+16
619 mmHg
37%
6.1
m/s
SW
24 September, Tuesday. day, 20°; night, 14°; partly cloudy
25
+22
+15
25 September, wed
+22
+15
Feels like
+17
619 mmHg
37%
6.5
m/s
SW
25 September, Wednesday. day, 22°; night, 15°; clear
26
+18
+12
26 September, thu
+18
+12
Feels like
+15
620 mmHg
43%
6.1
m/s
SE
26 September, Thursday. day, 18°; night, 12°; clear
27
+19
+13
27 September, fri
+19
+13
Feels like
+15
620 mmHg
46%
5.6
m/s
SW
27 September, Friday. day, 19°; night, 13°; clear
28
+20
+13
28 September, sat
+20
+13
Feels like
+15
620 mmHg
40%
6.8
m/s
S
28 September, Saturday. day, 20°; night, 13°; clear
29
+20
+14
29 September, sun
+20
+14
Feels like
+15
617 mmHg
38%
8.3
m/s
SW
29 September, Sunday. day, 20°; night, 14°; clear
30
+17
+11
30 September, mon
+17
+11
Feels like
+13
619 mmHg
40%
6.5
m/s
W
30 September, Monday. day, 17°; night, 11°; clear
1
+16
+10
1 October, tue
+16
+10
Feels like
+12
619 mmHg
44%
6.1
m/s
W
1 October, Tuesday. day, 16°; night, 10°; clear
2
+16
+11
2 October, wed
+16
+11
Feels like
+12
617 mmHg
43%
6.3
m/s
SW
2 October, Wednesday. day, 16°; night, 11°; partly cloudy
3
+14
+7
3 October, thu
+14
+7
Feels like
+8
616 mmHg
54%
9.1
m/s
SW
3 October, Thursday. day, 14°; night, 7°; clear
4
+13
+7
4 October, fri
+13
+7
Feels like
+7
616 mmHg
52%
7.6
m/s
SW
4 October, Friday. day, 13°; night, 7°; partly cloudy
5
+12
+7
5 October, sat
+12
+7
Feels like
+7
617 mmHg
57%
8.5
m/s
SW
5 October, Saturday. day, 12°; night, 7°; partly cloudy
Average data for 10 years
Casper September
24
sunny days
1
day with precipitation
5
cloudy days
24 sunny days; 1 day with precipitation; 5 cloudy days;
37
%
air humidity
4.5
m/s
Wind
SW
13
mm of precipitation
(5% of annual average)
air humidity 37%; 13 millimeters of precipitation (5% of annual average); Wind south-westerly 4.5 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
SW
SW
W
SW
SW
SW
SW
SW
W
W
SW
W
SW
SW
SW
SW
SW
W
SW
SW
W
W
SW
SW
SW
SE
SW
S
SW
W
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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