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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
+29
+19
1 September, sun
+29
+19
Feels like
+21
684 mmHg
44%
6.6
m/s
SE
Climate normal
+26
+19
1 September, Sunday. day, 29°; night, 19°; clear
2
+36
+18
2 September, mon
+36
+18
Feels like
+26
678 mmHg
23%
8.7
m/s
S
Climate normal
+25
+17
2 September, Monday. day, 36°; night, 18°; mostly clear
3
+37
+23
3 September, tue
+37
+23
Feels like
+27
677 mmHg
23%
6.1
m/s
NW
Climate normal
+23
+17
3 September, Tuesday. day, 37°; night, 23°; partly cloudy
4
+26
+16
4 September, wed
+26
+16
Feels like
+19
681 mmHg
47%
8.1
m/s
NW
Climate normal
+24
+18
4 September, Wednesday. day, 26°; night, 16°; light rain
5
+24
+12
5 September, thu
+24
+12
Feels like
+17
684 mmHg
49%
4.7
m/s
N
Climate normal
+22
+17
5 September, Thursday. day, 24°; night, 12°; light rain
6
+25
+12
6 September, fri
+25
+12
Feels like
+17
682 mmHg
46%
4.1
m/s
NE
Climate normal
+23
+16
6 September, Friday. day, 25°; night, 12°; mostly clear
7
+27
+15
7 September, sat
+27
+15
Feels like
+17
679 mmHg
41%
5.1
m/s
S
Climate normal
+22
+17
7 September, Saturday. day, 27°; night, 15°; mostly clear
8
+31
+15
8 September, sun
+31
+15
Feels like
+20
676 mmHg
35%
4.7
m/s
E
Climate normal
+22
+16
8 September, Sunday. day, 31°; night, 15°; mostly clear
9
+29
+16
9 September, mon
+29
+16
Feels like
+19
677 mmHg
37%
5.1
m/s
NW
Climate normal
+21
+16
9 September, Monday. day, 29°; night, 16°; overcast
10
+30
+16
10 September, tue
+30
+16
Feels like
+20
676 mmHg
42%
5.3
m/s
SE
Climate normal
+21
+16
10 September, Tuesday. day, 30°; night, 16°; partly cloudy
11
+27
+16
11 September, wed
+27
+16
Feels like
+17
678 mmHg
36%
7.1
m/s
S
Climate normal
+21
+15
11 September, Wednesday. day, 27°; night, 16°; partly cloudy
12
+30
+16
12 September, thu
+30
+16
Feels like
+17
676 mmHg
30%
8.2
m/s
SW
Climate normal
+20
+14
12 September, Thursday. day, 30°; night, 16°; mostly clear
13
+24
+17
13 September, fri
+24
+17
Feels like
+18
677 mmHg
53%
5.4
m/s
NW
Climate normal
+19
+13
13 September, Friday. day, 24°; night, 17°; partly cloudy
14
+20
+16
14 September, sat
+20
+16
Feels like
+20
674 mmHg
83%
2.1
m/s
E
Climate normal
+18
+13
14 September, Saturday. day, 20°; night, 16°; rain
15
+21
+16
15 September, sun
+21
+16
Feels like
+19
674 mmHg
76%
2.6
m/s
E
Climate normal
+21
+16
15 September, Sunday. day, 21°; night, 16°; rain
16
+22
+18
16 September, mon
+22
+18
Feels like
+18
672 mmHg
76%
5.5
m/s
SE
Climate normal
+21
+14
16 September, Monday. day, 22°; night, 18°; mostly clear
17
+25
+20
17 September, tue
+25
+20
Feels like
+19
667 mmHg
69%
6.5
m/s
SE
Climate normal
+21
+15
17 September, Tuesday. day, 25°; night, 20°; clear
18
+25
+17
18 September, wed
+25
+17
Feels like
+21
663 mmHg
53%
4.3
m/s
SW
Climate normal
+22
+15
18 September, Wednesday. day, 25°; night, 17°; mostly clear
19
+15
+8
19 September, thu
+15
+8
Feels like
+3
668 mmHg
88%
13.5
m/s
NW
Climate normal
+22
+15
19 September, Thursday. day, 15°; night, 8°; rain
20
+9
+7
20 September, fri
+9
+7
Feels like
0
673 mmHg
79%
9.5
m/s
NW
Climate normal
+21
+15
20 September, Friday. day, 9°; night, 7°; rain
21
+11
+9
21 September, sat
+11
+9
Feels like
+3
671 mmHg
84%
8
m/s
NW
Climate normal
+20
+14
21 September, Saturday. day, 11°; night, 9°; rain
22
+16
+9
22 September, sun
+16
+9
Feels like
+11
671 mmHg
72%
2.4
m/s
NW
Climate normal
+17
+12
22 September, Sunday. day, 16°; night, 9°; clear
23
+18
+10
23 September, mon
+18
+10
Feels like
+12
673 mmHg
75%
2.1
m/s
NW
Climate normal
+19
+14
23 September, Monday. day, 18°; night, 10°; light rain
24
+18
+10
24 September, tue
+18
+10
Feels like
+13
672 mmHg
75%
2.6
m/s
NE
Climate normal
+20
+15
24 September, Tuesday. day, 18°; night, 10°; light rain
25
+19
+12
25 September, wed
+19
+12
Feels like
+13
672 mmHg
74%
2.7
m/s
E
Climate normal
+23
+17
25 September, Wednesday. day, 19°; night, 12°; clear
26
+22
+15
26 September, thu
+22
+15
Feels like
+16
671 mmHg
60%
2.9
m/s
SE
Climate normal
+20
+14
26 September, Thursday. day, 22°; night, 15°; clear
27
+24
+17
27 September, fri
+24
+17
Feels like
+19
666 mmHg
60%
2.8
m/s
SW
Climate normal
+19
+14
27 September, Friday. day, 24°; night, 17°; clear
28
+22
+9
28 September, sat
+22
+9
Feels like
+13
667 mmHg
50%
6.4
m/s
NW
Climate normal
+18
+13
28 September, Saturday. day, 22°; night, 9°; mostly clear
29
+23
+20
29 September, sun
+23
+20
Feels like
+11
667 mmHg
43%
6.6
m/s
S
Climate normal
+21
+14
29 September, Sunday. day, 23°; night, 20°; clear
30
+11
+6
30 September, mon
+11
+6
Feels like
+1
670 mmHg
62%
11.1
m/s
NW
Climate normal
+18
+12
30 September, Monday. day, 11°; night, 6°; mostly clear
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
18
sunny days
7
days with precipitation
5
cloudy days
18 sunny days; 7 days with precipitation; 5 cloudy days;
56
%
air humidity
5.7
m/s
Wind
NW
15
mm of precipitation
(3% of annual average)
air humidity 56%; 15 millimeters of precipitation (3% of annual average); Wind north-westerly 5.7 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
SE
S
NW
NW
N
NE
S
E
NW
SE
S
SW
NW
E
E
SE
SE
SW
NW
NW
NW
NW
NW
NE
E
SE
SW
NW
S
NW
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