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Monthly weather forecast in Rapid 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
September
+28
+19
1 September, sun
+28
+19
Feels like
+20
684 mmHg
44%
6.6
m/s
SE
Climate normal
+26
+19
1 September, Sunday. day, 28°; night, 19°; clear
2
+36
+18
2 September, mon
+36
+18
Feels like
+25
678 mmHg
24%
8.4
m/s
S
Climate normal
+25
+17
2 September, Monday. day, 36°; night, 18°; mostly clear
3
+37
+22
3 September, tue
+37
+22
Feels like
+28
677 mmHg
23%
6.1
m/s
NW
Climate normal
+23
+17
3 September, Tuesday. day, 37°; night, 22°; partly cloudy
4
+26
+15
4 September, wed
+26
+15
Feels like
+19
680 mmHg
48%
8.7
m/s
N
Climate normal
+24
+18
4 September, Wednesday. day, 26°; night, 15°; thunderstorm with rain
5
+25
+12
5 September, thu
+25
+12
Feels like
+16
684 mmHg
45%
5
m/s
N
Climate normal
+22
+17
5 September, Thursday. day, 25°; night, 12°; light rain
6
+26
+12
6 September, fri
+26
+12
Feels like
+16
683 mmHg
44%
4.3
m/s
NE
Climate normal
+23
+16
6 September, Friday. day, 26°; night, 12°; partly cloudy
7
+27
+14
7 September, sat
+27
+14
Feels like
+17
679 mmHg
43%
5
m/s
SW
Climate normal
+22
+17
7 September, Saturday. day, 27°; night, 14°; mostly clear
8
+30
+15
8 September, sun
+30
+15
Feels like
+19
676 mmHg
39%
4.9
m/s
E
Climate normal
+22
+16
8 September, Sunday. day, 30°; night, 15°; mostly clear
9
+29
+15
9 September, mon
+29
+15
Feels like
+17
677 mmHg
36%
7.6
m/s
W
Climate normal
+21
+16
9 September, Monday. day, 29°; night, 15°; mostly clear
10
+30
+16
10 September, tue
+30
+16
Feels like
+20
676 mmHg
43%
5.4
m/s
S
Climate normal
+21
+16
10 September, Tuesday. day, 30°; night, 16°; partly cloudy
11
+28
+17
11 September, wed
+28
+17
Feels like
+17
678 mmHg
40%
8.2
m/s
S
Climate normal
+21
+15
11 September, Wednesday. day, 28°; night, 17°; partly cloudy
12
+28
+16
12 September, thu
+28
+16
Feels like
+18
678 mmHg
44%
5.6
m/s
NW
Climate normal
+20
+14
12 September, Thursday. day, 28°; night, 16°; partly cloudy
13
+25
+10
13 September, fri
+25
+10
Feels like
+14
675 mmHg
59%
6.4
m/s
SW
Climate normal
+19
+13
13 September, Friday. day, 25°; night, 10°; light rain
14
+21
+14
14 September, sat
+21
+14
Feels like
+13
673 mmHg
52%
3.2
m/s
SW
Climate normal
+18
+13
14 September, Saturday. day, 21°; night, 14°; clear
15
+25
+16
15 September, sun
+25
+16
Feels like
+17
671 mmHg
47%
3.6
m/s
SW
Climate normal
+21
+16
15 September, Sunday. day, 25°; night, 16°; clear
16
+27
+24
16 September, mon
+27
+24
Feels like
+21
667 mmHg
45%
3.8
m/s
SE
Climate normal
+21
+14
16 September, Monday. day, 27°; night, 24°; mostly clear
17
+28
+23
17 September, tue
+28
+23
Feels like
+22
665 mmHg
34%
5.7
m/s
SE
Climate normal
+21
+15
17 September, Tuesday. day, 28°; night, 23°; mostly clear
18
+26
+20
18 September, wed
+26
+20
Feels like
+20
666 mmHg
56%
8.5
m/s
SE
Climate normal
+22
+15
18 September, Wednesday. day, 26°; night, 20°; partly cloudy
19
+26
+23
19 September, thu
+26
+23
Feels like
+21
666 mmHg
54%
6.8
m/s
SE
Climate normal
+22
+15
19 September, Thursday. day, 26°; night, 23°; partly cloudy
20
+25
+14
20 September, fri
+25
+14
Feels like
+18
666 mmHg
56%
6.6
m/s
W
Climate normal
+21
+15
20 September, Friday. day, 25°; night, 14°; light rain
21
+20
+16
21 September, sat
+20
+16
Feels like
+12
672 mmHg
53%
5.7
m/s
E
Climate normal
+20
+14
21 September, Saturday. day, 20°; night, 16°; clear
22
+26
+21
22 September, sun
+26
+21
Feels like
+18
669 mmHg
67%
7.7
m/s
SE
Climate normal
+17
+12
22 September, Sunday. day, 26°; night, 21°; partly cloudy
23
+25
+12
23 September, mon
+25
+12
Feels like
+18
663 mmHg
66%
6.8
m/s
NW
Climate normal
+19
+14
23 September, Monday. day, 25°; night, 12°; rain
24
+17
+10
24 September, tue
+17
+10
Feels like
+12
670 mmHg
54%
2.5
m/s
NW
Climate normal
+20
+15
24 September, Tuesday. day, 17°; night, 10°; partly cloudy
25
+16
+11
25 September, wed
+16
+11
Feels like
+10
675 mmHg
51%
3.9
m/s
NW
Climate normal
+23
+17
25 September, Wednesday. day, 16°; night, 11°; clear
26
+22
+15
26 September, thu
+22
+15
Feels like
+14
673 mmHg
60%
4
m/s
SE
Climate normal
+20
+14
26 September, Thursday. day, 22°; night, 15°; clear
27
+24
+18
27 September, fri
+24
+18
Feels like
+18
671 mmHg
60%
4.4
m/s
SE
Climate normal
+19
+14
27 September, Friday. day, 24°; night, 18°; clear
28
+25
+22
28 September, sat
+25
+22
Feels like
+19
668 mmHg
50%
4.3
m/s
SE
Climate normal
+18
+13
28 September, Saturday. day, 25°; night, 22°; clear
29
+26
+21
29 September, sun
+26
+21
Feels like
+19
665 mmHg
43%
8.1
m/s
S
Climate normal
+21
+14
29 September, Sunday. day, 26°; night, 21°; mostly clear
30
+22
+17
30 September, mon
+22
+17
Feels like
+16
666 mmHg
62%
7.1
m/s
SE
Climate normal
+18
+12
30 September, Monday. day, 22°; night, 17°; light rain
Average data for 10 years
Next, the average data for 10 years
1 October
+16
+10
1 October, tue
+16
+10
Feels like
+11
669 mmHg
50%
7.5
m/s
W
1 October, Tuesday. day, 16°; night, 10°; clear
2
+15
+10
2 October, wed
+15
+10
Feels like
+11
668 mmHg
51%
6.8
m/s
N
2 October, Wednesday. day, 15°; night, 10°; clear
3
+14
+10
3 October, thu
+14
+10
Feels like
+9
667 mmHg
63%
7.8
m/s
W
3 October, Thursday. day, 14°; night, 10°; rain
4
+13
+9
4 October, fri
+13
+9
Feels like
+8
667 mmHg
62%
8.6
m/s
NW
4 October, Friday. day, 13°; night, 9°; partly cloudy
5
+13
+9
5 October, sat
+13
+9
Feels like
+10
667 mmHg
63%
6.5
m/s
W
5 October, Saturday. day, 13°; night, 9°; rain
Average for 30 days
17
sunny days
4
days with precipitation
9
cloudy days
17 sunny days; 4 days with precipitation; 9 cloudy days;
48
%
air humidity
5.8
m/s
Wind
SE
5
mm of precipitation
(1% of annual average)
air humidity 48%; 5 millimeters of precipitation (1% of annual average); Wind south-easterly 5.8 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
SE
S
NW
N
N
NE
SW
E
W
S
S
NW
SW
SW
SW
SE
SE
SE
SE
W
E
SE
NW
NW
NW
SE
SE
SE
S
SE
1
September
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