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Monthly weather forecast in Great Falls
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
8
+21
+15
8 September, sun
+21
+15
Feels like
+17
672 mmHg
41%
6.8
m/s
W
8 September, Sunday. day, 21°; night, 15°; partly cloudy
9
+22
+15
9 September, mon
+22
+15
Feels like
+18
674 mmHg
38%
6.6
m/s
W
9 September, Monday. day, 22°; night, 15°; clear
10
+22
+15
10 September, tue
+22
+15
Feels like
+17
675 mmHg
38%
7.6
m/s
W
10 September, Tuesday. day, 22°; night, 15°; clear
11
+23
+15
11 September, wed
+23
+15
Feels like
+19
673 mmHg
36%
6.9
m/s
SW
11 September, Wednesday. day, 23°; night, 15°; clear
12
September
+15
+10
12 September, thu
+15
+10
Feels like
+10
665 mmHg
82%
5
m/s
W
Climate normal
+20
+13
12 September, Thursday. day, 15°; night, 10°; rain
13
+19
+11
13 September, fri
+19
+11
Feels like
+10
671 mmHg
66%
6.4
m/s
SW
Climate normal
+18
+12
13 September, Friday. day, 19°; night, 11°; rain
14
+23
+10
14 September, sat
+23
+10
Feels like
+13
670 mmHg
50%
7.1
m/s
SW
Climate normal
+22
+16
14 September, Saturday. day, 23°; night, 10°; partly cloudy
15
+21
+12
15 September, sun
+21
+12
Feels like
+14
671 mmHg
60%
6
m/s
NE
Climate normal
+21
+15
15 September, Sunday. day, 21°; night, 12°; overcast
16
+21
+13
16 September, mon
+21
+13
Feels like
+15
671 mmHg
66%
3.4
m/s
NW
Climate normal
+21
+15
16 September, Monday. day, 21°; night, 13°; partly cloudy
17
+17
+12
17 September, tue
+17
+12
Feels like
+12
665 mmHg
83%
4.8
m/s
W
Climate normal
+20
+15
17 September, Tuesday. day, 17°; night, 12°; heavy rain
18
+16
+12
18 September, wed
+16
+12
Feels like
+6
663 mmHg
64%
10
m/s
SW
Climate normal
+21
+14
18 September, Wednesday. day, 16°; night, 12°; heavy rain
19
+16
+10
19 September, thu
+16
+10
Feels like
+10
669 mmHg
71%
3.9
m/s
SW
Climate normal
+21
+15
19 September, Thursday. day, 16°; night, 10°; rain
20
+17
+9
20 September, fri
+17
+9
Feels like
+9
675 mmHg
68%
5.2
m/s
NW
Climate normal
+20
+14
20 September, Friday. day, 17°; night, 9°; mostly clear
21
+19
+9
21 September, sat
+19
+9
Feels like
+10
676 mmHg
66%
4.3
m/s
W
Climate normal
+19
+14
21 September, Saturday. day, 19°; night, 9°; overcast
22
+19
+11
22 September, sun
+19
+11
Feels like
+12
677 mmHg
61%
3.6
m/s
W
Climate normal
+21
+15
22 September, Sunday. day, 19°; night, 11°; mostly clear
23
+17
+12
23 September, mon
+17
+12
Feels like
+11
673 mmHg
66%
4
m/s
W
Climate normal
+22
+16
23 September, Monday. day, 17°; night, 12°; partly cloudy
24
+14
+10
24 September, tue
+14
+10
Feels like
+8
672 mmHg
69%
4.7
m/s
W
Climate normal
+23
+17
24 September, Tuesday. day, 14°; night, 10°; partly cloudy
25
+17
+9
25 September, wed
+17
+9
Feels like
+10
632 mmHg
64%
2.6
m/s
W
Climate normal
+22
+15
25 September, Wednesday. day, 17°; night, 9°; mostly clear
26
+21
+13
26 September, thu
+21
+13
Feels like
+14
631 mmHg
59%
2.4
m/s
S
Climate normal
+19
+14
26 September, Thursday. day, 21°; night, 13°; clear
27
+20
+13
27 September, fri
+20
+13
Feels like
+12
627 mmHg
49%
3.9
m/s
SW
Climate normal
+20
+14
27 September, Friday. day, 20°; night, 13°; clear
28
+15
+7
28 September, sat
+15
+7
Feels like
+10
627 mmHg
74%
3.2
m/s
W
Climate normal
+21
+15
28 September, Saturday. day, 15°; night, 7°; light rain
29
+10
+4
29 September, sun
+10
+4
Feels like
+3
629 mmHg
58%
4.5
m/s
W
Climate normal
+20
+14
29 September, Sunday. day, 10°; night, 4°; mostly clear
30
+15
+9
30 September, mon
+15
+9
Feels like
+5
633 mmHg
60%
3.9
m/s
SW
Climate normal
+18
+12
30 September, Monday. day, 15°; night, 9°; mostly clear
1 October
+20
+14
1 October, tue
+20
+14
Feels like
+10
628 mmHg
55%
5.7
m/s
SW
Climate normal
+17
+12
1 October, Tuesday. day, 20°; night, 14°; clear
2
+11
+6
2 October, wed
+11
+6
Feels like
+9
630 mmHg
78%
2.5
m/s
NW
Climate normal
+15
+9
2 October, Wednesday. day, 11°; night, 6°; rain
3
+12
+9
3 October, thu
+12
+9
Feels like
+6
629 mmHg
83%
4.4
m/s
E
Climate normal
+12
+8
3 October, Thursday. day, 12°; night, 9°; light rain
4
+14
+6
4 October, fri
+14
+6
Feels like
+8
620 mmHg
71%
5.2
m/s
SW
Climate normal
+13
+8
4 October, Friday. day, 14°; night, 6°; light rain
5
+6
0
5 October, sat
+6
0
Feels like
−3
628 mmHg
55%
6.4
m/s
SW
Climate normal
+15
+10
5 October, Saturday. day, 6°; night, 0°; mostly clear
6
+13
+10
6 October, sun
+13
+10
Feels like
+2
630 mmHg
55%
5.5
m/s
SW
Climate normal
+13
+8
6 October, Sunday. day, 13°; night, 10°; mostly clear
7
+19
+13
7 October, mon
+19
+13
Feels like
+9
632 mmHg
47%
5.3
m/s
S
Climate normal
+14
+8
7 October, Monday. day, 19°; night, 13°; mostly clear
8
+20
+10
8 October, tue
+20
+10
Feels like
+10
625 mmHg
39%
6
m/s
S
Climate normal
+13
+8
8 October, Tuesday. day, 20°; night, 10°; clear
9
+6
+2
9 October, wed
+6
+2
Feels like
0
627 mmHg
68%
6
m/s
W
Climate normal
+14
+8
9 October, Wednesday. day, 6°; night, 2°; rain
10
+8
+3
10 October, thu
+8
+3
Feels like
0
635 mmHg
58%
3.7
m/s
SW
Climate normal
+9
+4
10 October, Thursday. day, 8°; night, 3°; mostly clear
11
+14
+8
11 October, fri
+14
+8
Feels like
+4
635 mmHg
57%
4.5
m/s
SW
Climate normal
+8
+5
11 October, Friday. day, 14°; night, 8°; clear
Average data for 10 years
Next, the average data for 10 years
12
+12
+7
12 October, sat
+12
+7
Feels like
+6
673 mmHg
49%
7
m/s
SW
12 October, Saturday. day, 12°; night, 7°; partly cloudy
Average for 30 days
14
sunny days
10
days with precipitation
6
cloudy days
14 sunny days; 10 days with precipitation; 6 cloudy days;
63
%
air humidity
4.8
m/s
Wind
SW
82
mm of precipitation
(20% of annual average)
air humidity 63%; 82 millimeters of precipitation (20% of annual average); Wind south-westerly 4.8 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
W
SW
SW
NE
NW
W
SW
SW
NW
W
W
W
W
W
S
SW
W
W
SW
SW
NW
E
SW
SW
SW
S
S
W
SW
SW
12
Average data for 10 years
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
October
2
3
4
5
6
7
8
9
10
11
Daytime temperature
Night-time temperature
