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Monthly weather forecast in Spearfish
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
25
+26
+19
25 August, sun
+26
+19
Feels like
+24
667 mmHg
41%
5.8
m/s
S
25 August, Sunday. day, 26°; night, 19°; clear
26
+26
+19
26 August, mon
+26
+19
Feels like
+24
666 mmHg
41%
6.9
m/s
W
26 August, Monday. day, 26°; night, 19°; clear
27
+26
+20
27 August, tue
+26
+20
Feels like
+23
666 mmHg
38%
6
m/s
S
27 August, Tuesday. day, 26°; night, 20°; clear
28
+26
+21
28 August, wed
+26
+21
Feels like
+23
666 mmHg
37%
6
m/s
SE
28 August, Wednesday. day, 26°; night, 21°; clear
29
+27
+19
29 August, thu
+27
+19
Feels like
+24
666 mmHg
37%
6.5
m/s
S
29 August, Thursday. day, 27°; night, 19°; clear
30
August
+30
+16
30 August, fri
+30
+16
Feels like
+22
674 mmHg
39%
3.4
m/s
SW
Climate normal
+24
+19
30 August, Friday. day, 30°; night, 16°; clear
31
+30
+14
31 August, sat
+30
+14
Feels like
+24
675 mmHg
36%
3.8
m/s
SW
Climate normal
+24
+17
31 August, Saturday. day, 30°; night, 14°; clear
1 September
+30
+22
1 September, sun
+30
+22
Feels like
+20
675 mmHg
52%
7.3
m/s
E
Climate normal
+25
+17
1 September, Sunday. day, 30°; night, 22°; clear
2
+36
+21
2 September, mon
+36
+21
Feels like
+25
673 mmHg
32%
5.3
m/s
SW
Climate normal
+24
+16
2 September, Monday. day, 36°; night, 21°; thunderstorm with rain
3
+35
+20
3 September, tue
+35
+20
Feels like
+26
672 mmHg
30%
3.8
m/s
NW
Climate normal
+22
+16
3 September, Tuesday. day, 35°; night, 20°; light rain
4
+24
+14
4 September, wed
+24
+14
Feels like
+20
677 mmHg
58%
4.1
m/s
NW
Climate normal
+23
+16
4 September, Wednesday. day, 24°; night, 14°; clear
5
+26
+15
5 September, thu
+26
+15
Feels like
+19
679 mmHg
56%
4.3
m/s
E
Climate normal
+21
+15
5 September, Thursday. day, 26°; night, 15°; light rain
6
+30
+17
6 September, fri
+30
+17
Feels like
+22
673 mmHg
49%
4.6
m/s
SW
Climate normal
+21
+15
6 September, Friday. day, 30°; night, 17°; clear
7
+32
+18
7 September, sat
+32
+18
Feels like
+23
670 mmHg
37%
4.5
m/s
SW
Climate normal
+21
+16
7 September, Saturday. day, 32°; night, 18°; light rain
8
+31
+17
8 September, sun
+31
+17
Feels like
+22
670 mmHg
36%
4.6
m/s
NW
Climate normal
+21
+14
8 September, Sunday. day, 31°; night, 17°; light rain
9
+29
+15
9 September, mon
+29
+15
Feels like
+20
669 mmHg
43%
3.9
m/s
W
Climate normal
+20
+14
9 September, Monday. day, 29°; night, 15°; partly cloudy
10
+28
+16
10 September, tue
+28
+16
Feels like
+19
670 mmHg
38%
4.5
m/s
NW
Climate normal
+20
+15
10 September, Tuesday. day, 28°; night, 16°; partly cloudy
11
+30
+23
11 September, wed
+30
+23
Feels like
+20
661 mmHg
40%
4.1
m/s
NW
Climate normal
+20
+14
11 September, Wednesday. day, 30°; night, 23°; mostly clear
12
+25
+17
12 September, thu
+25
+17
Feels like
+18
647 mmHg
29%
5.5
m/s
SW
Climate normal
+19
+13
12 September, Thursday. day, 25°; night, 17°; mostly clear
13
+22
+14
13 September, fri
+22
+14
Feels like
+14
649 mmHg
44%
6.2
m/s
NE
Climate normal
+18
+12
13 September, Friday. day, 22°; night, 14°; mostly clear
14
+16
+12
14 September, sat
+16
+12
Feels like
+9
655 mmHg
69%
6.8
m/s
NE
Climate normal
+18
+12
14 September, Saturday. day, 16°; night, 12°; partly cloudy
15
+20
+9
15 September, sun
+20
+9
Feels like
+8
652 mmHg
64%
10.7
m/s
SE
Climate normal
+20
+14
15 September, Sunday. day, 20°; night, 9°; light rain
16
+11
+7
16 September, mon
+11
+7
Feels like
+4
660 mmHg
56%
5.1
m/s
E
Climate normal
+20
+13
16 September, Monday. day, 11°; night, 7°; partly cloudy
17
+21
+16
17 September, tue
+21
+16
Feels like
+9
654 mmHg
53%
5.8
m/s
SE
Climate normal
+20
+15
17 September, Tuesday. day, 21°; night, 16°; clear
18
+12
+9
18 September, wed
+12
+9
Feels like
+6
657 mmHg
75%
6.5
m/s
N
Climate normal
+20
+14
18 September, Wednesday. day, 12°; night, 9°; partly cloudy
19
+12
+7
19 September, thu
+12
+7
Feels like
+4
664 mmHg
65%
4.5
m/s
SE
Climate normal
+19
+13
19 September, Thursday. day, 12°; night, 7°; partly cloudy
20
+17
+11
20 September, fri
+17
+11
Feels like
+10
663 mmHg
63%
3.6
m/s
SW
Climate normal
+19
+13
20 September, Friday. day, 17°; night, 11°; mostly clear
21
+24
+17
21 September, sat
+24
+17
Feels like
+15
658 mmHg
55%
3.4
m/s
S
Climate normal
+19
+13
21 September, Saturday. day, 24°; night, 17°; clear
22
+26
+20
22 September, sun
+26
+20
Feels like
+19
653 mmHg
34%
2.6
m/s
SW
Climate normal
+17
+12
22 September, Sunday. day, 26°; night, 20°; clear
23
+20
+12
23 September, mon
+20
+12
Feels like
+14
652 mmHg
43%
4.8
m/s
NW
Climate normal
+19
+14
23 September, Monday. day, 20°; night, 12°; light rain
24
+11
+6
24 September, tue
+11
+6
Feels like
+4
656 mmHg
84%
7.3
m/s
N
Climate normal
+19
+14
24 September, Tuesday. day, 11°; night, 6°; rain
25
+17
+12
25 September, wed
+17
+12
Feels like
+9
652 mmHg
61%
4.9
m/s
S
Climate normal
+22
+16
25 September, Wednesday. day, 17°; night, 12°; mostly clear
26
+9
+2
26 September, thu
+9
+2
Feels like
+2
653 mmHg
85%
6.1
m/s
N
Climate normal
+18
+12
26 September, Thursday. day, 9°; night, 2°; rain
27
+6
+1
27 September, fri
+6
+1
Feels like
−3
660 mmHg
63%
6.4
m/s
NW
Climate normal
+18
+13
27 September, Friday. day, 6°; night, 1°; partly cloudy
28
+13
+7
28 September, sat
+13
+7
Feels like
+3
657 mmHg
49%
3.8
m/s
SW
Climate normal
+18
+13
28 September, Saturday. day, 13°; night, 7°; clear
Average for 30 days
15
sunny days
8
days with precipitation
7
cloudy days
15 sunny days; 8 days with precipitation; 7 cloudy days;
51
%
air humidity
5.1
m/s
Wind
SW
6
mm of precipitation
(1% of annual average)
air humidity 51%; 6 millimeters of precipitation (1% of annual average); Wind south-westerly 5.1 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
SW
SW
E
SW
NW
NW
E
SW
SW
NW
W
NW
NW
SW
NE
NE
SE
E
SE
N
SE
SW
S
SW
NW
N
S
N
NW
SW
30
Average data for 10 years
31
1
September
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
Daytime temperature
Night-time temperature
