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Monthly forecast
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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
+21
+13
18 August, sun
+21
+13
Feels like
+18
599 mmHg
38%
4
m/s
SW
18 August, Sunday. day, 21°; night, 13°; clear
19
+21
+14
19 August, mon
+21
+14
Feels like
+18
599 mmHg
38%
3.7
m/s
SW
19 August, Monday. day, 21°; night, 14°; partly cloudy
20
+21
+14
20 August, tue
+21
+14
Feels like
+18
599 mmHg
40%
4.8
m/s
SW
20 August, Tuesday. day, 21°; night, 14°; clear
21
+20
+12
21 August, wed
+20
+12
Feels like
+17
599 mmHg
47%
4.5
m/s
SW
21 August, Wednesday. day, 20°; night, 12°; clear
22
+18
+11
22 August, thu
+18
+11
Feels like
+15
600 mmHg
46%
4.9
m/s
SW
22 August, Thursday. day, 18°; night, 11°; rain
23
+19
+11
23 August, fri
+19
+11
Feels like
+17
600 mmHg
44%
3.7
m/s
SW
23 August, Friday. day, 19°; night, 11°; clear
24
August
+20
+5
24 August, sat
+20
+5
Feels like
+9
614 mmHg
36%
8.3
m/s
S
Climate normal
+20
+12
24 August, Saturday. day, 20°; night, 5°; overcast
25
+18
+6
25 August, sun
+18
+6
Feels like
+10
617 mmHg
50%
3
m/s
NE
Climate normal
+22
+14
25 August, Sunday. day, 18°; night, 6°; light rain
26
+18
+4
26 August, mon
+18
+4
Feels like
+10
619 mmHg
61%
3.4
m/s
S
Climate normal
+20
+13
26 August, Monday. day, 18°; night, 4°; light rain
27
+23
+11
27 August, tue
+23
+11
Feels like
+11
619 mmHg
46%
6.6
m/s
S
Climate normal
+20
+13
27 August, Tuesday. day, 23°; night, 11°; mostly clear
28
+16
+2
28 August, wed
+16
+2
Feels like
+6
620 mmHg
49%
5.8
m/s
W
Climate normal
+20
+13
28 August, Wednesday. day, 16°; night, 2°; mostly clear
29
+20
+6
29 August, thu
+20
+6
Feels like
+8
623 mmHg
38%
4.1
m/s
SW
Climate normal
+20
+12
29 August, Thursday. day, 20°; night, 6°; clear
30
+25
+8
30 August, fri
+25
+8
Feels like
+12
623 mmHg
32%
4.3
m/s
SW
Climate normal
+19
+11
30 August, Friday. day, 25°; night, 8°; clear
31
+25
+8
31 August, sat
+25
+8
Feels like
+12
622 mmHg
35%
4
m/s
SW
Climate normal
+18
+11
31 August, Saturday. day, 25°; night, 8°; partly cloudy
1 September
+22
+8
1 September, sun
+22
+8
Feels like
+11
623 mmHg
47%
4.2
m/s
E
Climate normal
+18
+10
1 September, Sunday. day, 22°; night, 8°; mostly clear
2
+24
+9
2 September, mon
+24
+9
Feels like
+14
620 mmHg
51%
3.8
m/s
S
Climate normal
+18
+11
2 September, Monday. day, 24°; night, 9°; mostly clear
3
+24
+9
3 September, tue
+24
+9
Feels like
+13
609 mmHg
44%
4
m/s
SW
Climate normal
+17
+10
3 September, Tuesday. day, 24°; night, 9°; mostly clear
4
+22
+9
4 September, wed
+22
+9
Feels like
+14
603 mmHg
50%
3.6
m/s
SW
Climate normal
+14
+8
4 September, Wednesday. day, 22°; night, 9°; mostly clear
5
+21
+10
5 September, thu
+21
+10
Feels like
+13
592 mmHg
48%
3.1
m/s
SW
Climate normal
+16
+9
5 September, Thursday. day, 21°; night, 10°; mostly clear
6
+22
+11
6 September, fri
+22
+11
Feels like
+15
586 mmHg
52%
1.4
m/s
SW
Climate normal
+16
+9
6 September, Friday. day, 22°; night, 11°; light rain
7
+19
+9
7 September, sat
+19
+9
Feels like
+12
586 mmHg
64%
1.8
m/s
SE
Climate normal
+16
+9
7 September, Saturday. day, 19°; night, 9°; rain
8
+21
+9
8 September, sun
+21
+9
Feels like
+14
587 mmHg
54%
1.8
m/s
SE
Climate normal
+16
+8
8 September, Sunday. day, 21°; night, 9°; partly cloudy
9
+21
+10
9 September, mon
+21
+10
Feels like
+13
588 mmHg
38%
2
m/s
S
Climate normal
+16
+9
9 September, Monday. day, 21°; night, 10°; mostly clear
10
+21
+7
10 September, tue
+21
+7
Feels like
+14
586 mmHg
40%
2.3
m/s
SW
Climate normal
+16
+8
10 September, Tuesday. day, 21°; night, 7°; partly cloudy
11
+23
+10
11 September, wed
+23
+10
Feels like
+13
586 mmHg
46%
0.8
m/s
S
Climate normal
+17
+8
11 September, Wednesday. day, 23°; night, 10°; mostly clear
12
+21
+8
12 September, thu
+21
+8
Feels like
+13
586 mmHg
38%
1.9
m/s
SW
Climate normal
+15
+9
12 September, Thursday. day, 21°; night, 8°; mostly clear
13
+21
+7
13 September, fri
+21
+7
Feels like
+12
586 mmHg
44%
1
m/s
NW
Climate normal
+14
+7
13 September, Friday. day, 21°; night, 7°; partly cloudy
14
+16
+3
14 September, sat
+16
+3
Feels like
+9
587 mmHg
68%
2.4
m/s
N
Climate normal
+14
+8
14 September, Saturday. day, 16°; night, 3°; light rain
15
+20
+6
15 September, sun
+20
+6
Feels like
+10
589 mmHg
51%
2.1
m/s
W
Climate normal
+14
+9
15 September, Sunday. day, 20°; night, 6°; clear
16
+23
+7
16 September, mon
+23
+7
Feels like
+13
591 mmHg
43%
1.6
m/s
W
Climate normal
+14
+8
16 September, Monday. day, 23°; night, 7°; clear
17
+24
+11
17 September, tue
+24
+11
Feels like
+15
591 mmHg
42%
2.3
m/s
SW
Climate normal
+14
+8
17 September, Tuesday. day, 24°; night, 11°; clear
18
+24
+10
18 September, wed
+24
+10
Feels like
+14
590 mmHg
38%
1.9
m/s
W
Climate normal
+15
+8
18 September, Wednesday. day, 24°; night, 10°; clear
19
+22
+11
19 September, thu
+22
+11
Feels like
+11
586 mmHg
21%
6.4
m/s
SW
Climate normal
+14
+8
19 September, Thursday. day, 22°; night, 11°; mostly clear
20
+17
+8
20 September, fri
+17
+8
Feels like
+8
585 mmHg
34%
4.3
m/s
SW
Climate normal
+14
+8
20 September, Friday. day, 17°; night, 8°; mostly clear
21
+20
+12
21 September, sat
+20
+12
Feels like
+8
586 mmHg
37%
5.2
m/s
SW
Climate normal
+13
+7
21 September, Saturday. day, 20°; night, 12°; clear
Average for 30 days
20
sunny days
5
days with precipitation
5
cloudy days
20 sunny days; 5 days with precipitation; 5 cloudy days;
44
%
air humidity
3.5
m/s
Wind
SW
4
mm of precipitation
(1% of annual average)
air humidity 44%; 4 millimeters of precipitation (1% of annual average); Wind south-westerly 3.5 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
S
NE
S
S
W
SW
SW
SW
E
S
SW
SW
SW
SW
SE
SE
S
SW
S
SW
NW
N
W
W
SW
W
SW
SW
SW
SW
24
Average data for 10 years
25
26
27
28
29
30
31
1
September
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
Daytime temperature
Night-time temperature
