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Monthly weather forecast in Big Sky
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
18
August
+27
+11
18 August, sun
+27
+11
Feels like
+17
619 mmHg
50%
4.4
m/s
S
Climate normal
+21
+13
18 August, Sunday. day, 27°; night, 11°; rain
19
+25
+9
19 August, mon
+25
+9
Feels like
+16
618 mmHg
52%
5.4
m/s
S
Climate normal
+21
+14
19 August, Monday. day, 25°; night, 9°; rain
20
+25
+11
20 August, tue
+25
+11
Feels like
+16
618 mmHg
47%
5.3
m/s
SW
Climate normal
+21
+14
20 August, Tuesday. day, 25°; night, 11°; light rain
21
+24
+8
21 August, wed
+24
+8
Feels like
+13
620 mmHg
42%
6.1
m/s
SW
Climate normal
+20
+12
21 August, Wednesday. day, 24°; night, 8°; light rain
22
+26
+12
22 August, thu
+26
+12
Feels like
+12
615 mmHg
38%
6.5
m/s
S
Climate normal
+18
+11
22 August, Thursday. day, 26°; night, 12°; mostly clear
23
+25
+13
23 August, fri
+25
+13
Feels like
+12
613 mmHg
40%
8.5
m/s
S
Climate normal
+19
+11
23 August, Friday. day, 25°; night, 13°; light rain
24
+22
+9
24 August, sat
+22
+9
Feels like
+12
618 mmHg
43%
6
m/s
S
Climate normal
+20
+12
24 August, Saturday. day, 22°; night, 9°; rain
25
+22
+8
25 August, sun
+22
+8
Feels like
+10
625 mmHg
50%
6.6
m/s
SW
Climate normal
+22
+14
25 August, Sunday. day, 22°; night, 8°; light rain
26
+22
+9
26 August, mon
+22
+9
Feels like
+11
625 mmHg
46%
5.5
m/s
SW
Climate normal
+20
+13
26 August, Monday. day, 22°; night, 9°; light rain
27
+24
+11
27 August, tue
+24
+11
Feels like
+14
613 mmHg
42%
4.6
m/s
SW
Climate normal
+20
+13
27 August, Tuesday. day, 24°; night, 11°; clear
28
+24
+11
28 August, wed
+24
+11
Feels like
+15
606 mmHg
55%
3.5
m/s
SW
Climate normal
+20
+13
28 August, Wednesday. day, 24°; night, 11°; partly cloudy
29
+25
+11
29 August, thu
+25
+11
Feels like
+14
605 mmHg
42%
5.3
m/s
SW
Climate normal
+20
+12
29 August, Thursday. day, 25°; night, 11°; mostly clear
30
+25
+10
30 August, fri
+25
+10
Feels like
+14
588 mmHg
38%
1.4
m/s
W
Climate normal
+19
+11
30 August, Friday. day, 25°; night, 10°; mostly clear
31
+24
+12
31 August, sat
+24
+12
Feels like
+16
588 mmHg
45%
1.8
m/s
SW
Climate normal
+18
+11
31 August, Saturday. day, 24°; night, 12°; partly cloudy
1 September
+23
+13
1 September, sun
+23
+13
Feels like
+15
589 mmHg
49%
1.6
m/s
S
Climate normal
+18
+10
1 September, Sunday. day, 23°; night, 13°; partly cloudy
2
+25
+13
2 September, mon
+25
+13
Feels like
+15
588 mmHg
30%
3.8
m/s
SW
Climate normal
+18
+11
2 September, Monday. day, 25°; night, 13°; clear
3
+23
+13
3 September, tue
+23
+13
Feels like
+12
588 mmHg
28%
3.4
m/s
SW
Climate normal
+17
+10
3 September, Tuesday. day, 23°; night, 13°; mostly clear
4
+24
+13
4 September, wed
+24
+13
Feels like
+13
588 mmHg
15%
3.9
m/s
S
Climate normal
+14
+8
4 September, Wednesday. day, 24°; night, 13°; mostly clear
5
+24
+11
5 September, thu
+24
+11
Feels like
+13
587 mmHg
19%
3.2
m/s
S
Climate normal
+16
+9
5 September, Thursday. day, 24°; night, 11°; partly cloudy
6
+23
+5
6 September, fri
+23
+5
Feels like
+14
586 mmHg
22%
4.4
m/s
SW
Climate normal
+16
+9
6 September, Friday. day, 23°; night, 5°; mostly clear
7
+22
+12
7 September, sat
+22
+12
Feels like
+9
584 mmHg
24%
6.2
m/s
SW
Climate normal
+16
+9
7 September, Saturday. day, 22°; night, 12°; clear
8
+18
+7
8 September, sun
+18
+7
Feels like
+8
584 mmHg
26%
5.7
m/s
SW
Climate normal
+16
+8
8 September, Sunday. day, 18°; night, 7°; mostly clear
9
+16
+6
9 September, mon
+16
+6
Feels like
+10
587 mmHg
58%
1.4
m/s
SW
Climate normal
+16
+9
9 September, Monday. day, 16°; night, 6°; light rain
10
+13
+8
10 September, tue
+13
+8
Feels like
+7
584 mmHg
71%
2.5
m/s
S
Climate normal
+16
+8
10 September, Tuesday. day, 13°; night, 8°; rain
11
+8
+4
11 September, wed
+8
+4
Feels like
+4
584 mmHg
85%
2.9
m/s
NW
Climate normal
+17
+8
11 September, Wednesday. day, 8°; night, 4°; light rain
12
+10
+2
12 September, thu
+10
+2
Feels like
+2
585 mmHg
67%
3.2
m/s
NE
Climate normal
+15
+9
12 September, Thursday. day, 10°; night, 2°; partly cloudy
13
+14
+6
13 September, fri
+14
+6
Feels like
+5
587 mmHg
55%
3.1
m/s
SW
Climate normal
+14
+7
13 September, Friday. day, 14°; night, 6°; clear
14
+14
+9
14 September, sat
+14
+9
Feels like
+3
587 mmHg
47%
5.2
m/s
SW
Climate normal
+14
+8
14 September, Saturday. day, 14°; night, 9°; partly cloudy
15
+6
+1
15 September, sun
+6
+1
Feels like
0
584 mmHg
55%
5.7
m/s
NW
Climate normal
+14
+9
15 September, Sunday. day, 6°; night, 1°; light rain
16
+9
−2
16 September, mon
+9
−2
Feels like
−1
590 mmHg
49%
3.3
m/s
W
Climate normal
+14
+8
16 September, Monday. day, 9°; night, -2°; clear
Average data for 10 years
Next, the average data for 10 years
17
+14
+8
17 September, tue
+14
+8
Feels like
+11
599 mmHg
56%
4.5
m/s
SW
17 September, Tuesday. day, 14°; night, 8°; rain
18
+15
+8
18 September, wed
+15
+8
Feels like
+11
598 mmHg
50%
5.5
m/s
SW
18 September, Wednesday. day, 15°; night, 8°; partly cloudy
19
+14
+8
19 September, thu
+14
+8
Feels like
+10
599 mmHg
50%
4.6
m/s
SW
19 September, Thursday. day, 14°; night, 8°; clear
20
+14
+8
20 September, fri
+14
+8
Feels like
+11
599 mmHg
50%
4
m/s
SW
20 September, Friday. day, 14°; night, 8°; partly cloudy
21
+13
+7
21 September, sat
+13
+7
Feels like
+9
598 mmHg
61%
4.3
m/s
S
21 September, Saturday. day, 13°; night, 7°; rain
Average for 30 days
13
sunny days
11
days with precipitation
6
cloudy days
13 sunny days; 11 days with precipitation; 6 cloudy days;
44
%
air humidity
4.3
m/s
Wind
SW
13
mm of precipitation
(2% of annual average)
air humidity 44%; 13 millimeters of precipitation (2% of annual average); Wind south-westerly 4.3 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
S
S
SW
SW
S
S
S
SW
SW
SW
SW
SW
W
SW
S
SW
SW
S
S
SW
SW
SW
SW
S
NW
NE
SW
SW
NW
W
18
Average data for 10 years
19
20
21
22
23
24
25
26
27
28
29
30
31
1
September
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Daytime temperature
Night-time temperature
