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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
15
+21
+15
15 September, sun
+21
+15
Feels like
+18
672 mmHg
41%
6.4
m/s
SW
15 September, Sunday. day, 21°; night, 15°; clear
16
+21
+15
16 September, mon
+21
+15
Feels like
+17
672 mmHg
41%
6.9
m/s
SW
16 September, Monday. day, 21°; night, 15°; clear
17
+20
+15
17 September, tue
+20
+15
Feels like
+15
671 mmHg
43%
7.6
m/s
SW
17 September, Tuesday. day, 20°; night, 15°; clear
18
September
+17
+13
18 September, wed
+17
+13
Feels like
+9
666 mmHg
70%
8.7
m/s
NW
Climate normal
+21
+14
18 September, Wednesday. day, 17°; night, 13°; rain
19
+23
+13
19 September, thu
+23
+13
Feels like
+14
670 mmHg
50%
7.2
m/s
SW
Climate normal
+21
+15
19 September, Thursday. day, 23°; night, 13°; partly cloudy
20
+20
+8
20 September, fri
+20
+8
Feels like
+9
669 mmHg
47%
10.5
m/s
SW
Climate normal
+20
+14
20 September, Friday. day, 20°; night, 8°; light rain
21
+15
+6
21 September, sat
+15
+6
Feels like
+10
677 mmHg
61%
3
m/s
W
Climate normal
+19
+14
21 September, Saturday. day, 15°; night, 6°; mostly clear
22
+22
+13
22 September, sun
+22
+13
Feels like
+10
675 mmHg
49%
5.7
m/s
SW
Climate normal
+21
+15
22 September, Sunday. day, 22°; night, 13°; partly cloudy
23
+22
+11
23 September, mon
+22
+11
Feels like
+11
676 mmHg
49%
6.9
m/s
W
Climate normal
+22
+16
23 September, Monday. day, 22°; night, 11°; partly cloudy
24
+24
+11
24 September, tue
+24
+11
Feels like
+15
678 mmHg
56%
4.1
m/s
SW
Climate normal
+23
+17
24 September, Tuesday. day, 24°; night, 11°; mostly clear
25
+28
+13
25 September, wed
+28
+13
Feels like
+16
674 mmHg
54%
6.5
m/s
SW
Climate normal
+22
+15
25 September, Wednesday. day, 28°; night, 13°; clear
26
+27
+12
26 September, thu
+27
+12
Feels like
+16
675 mmHg
54%
6.6
m/s
W
Climate normal
+19
+14
26 September, Thursday. day, 27°; night, 12°; rain
27
+27
+11
27 September, fri
+27
+11
Feels like
+14
675 mmHg
49%
8
m/s
W
Climate normal
+20
+14
27 September, Friday. day, 27°; night, 11°; clear
28
+20
+9
28 September, sat
+20
+9
Feels like
+11
675 mmHg
47%
4.1
m/s
W
Climate normal
+21
+15
28 September, Saturday. day, 20°; night, 9°; mostly clear
29
+21
+11
29 September, sun
+21
+11
Feels like
+11
677 mmHg
55%
3.7
m/s
W
Climate normal
+20
+14
29 September, Sunday. day, 21°; night, 11°; mostly clear
30
+28
+13
30 September, mon
+28
+13
Feels like
+14
669 mmHg
47%
3.9
m/s
W
Climate normal
+18
+12
30 September, Monday. day, 28°; night, 13°; clear
1 October
+22
+14
1 October, tue
+22
+14
Feels like
+15
634 mmHg
52%
3.5
m/s
W
Climate normal
+17
+12
1 October, Tuesday. day, 22°; night, 14°; clear
2
+21
+12
2 October, wed
+21
+12
Feels like
+13
633 mmHg
50%
3.9
m/s
SW
Climate normal
+15
+9
2 October, Wednesday. day, 21°; night, 12°; clear
3
+19
+12
3 October, thu
+19
+12
Feels like
+12
631 mmHg
68%
3.7
m/s
E
Climate normal
+12
+8
3 October, Thursday. day, 19°; night, 12°; mostly clear
4
+21
+14
4 October, fri
+21
+14
Feels like
+14
624 mmHg
52%
3.3
m/s
SW
Climate normal
+13
+8
4 October, Friday. day, 21°; night, 14°; clear
5
+13
+7
5 October, sat
+13
+7
Feels like
+8
627 mmHg
68%
4.9
m/s
NW
Climate normal
+15
+10
5 October, Saturday. day, 13°; night, 7°; light rain
6
+15
+8
6 October, sun
+15
+8
Feels like
+5
631 mmHg
45%
4.3
m/s
SW
Climate normal
+13
+8
6 October, Sunday. day, 15°; night, 8°; mostly clear
7
+14
+7
7 October, mon
+14
+7
Feels like
+5
631 mmHg
44%
5.1
m/s
SW
Climate normal
+14
+8
7 October, Monday. day, 14°; night, 7°; mostly clear
8
+10
+4
8 October, tue
+10
+4
Feels like
+3
634 mmHg
71%
2.9
m/s
NE
Climate normal
+13
+8
8 October, Tuesday. day, 10°; night, 4°; light rain
9
+14
+7
9 October, wed
+14
+7
Feels like
+6
626 mmHg
57%
3.8
m/s
SW
Climate normal
+14
+8
9 October, Wednesday. day, 14°; night, 7°; mostly clear
10
+5
−3
10 October, thu
+5
−3
Feels like
−4
628 mmHg
82%
5.6
m/s
N
Climate normal
+9
+4
10 October, Thursday. day, 5°; night, -3°; sleet
11
+12
+8
11 October, fri
+12
+8
Feels like
+2
630 mmHg
63%
2.2
m/s
SW
Climate normal
+8
+5
11 October, Friday. day, 12°; night, 8°; mostly clear
12
+13
+4
12 October, sat
+13
+4
Feels like
+6
631 mmHg
53%
3.7
m/s
NW
Climate normal
+12
+7
12 October, Saturday. day, 13°; night, 4°; clear
13
+15
+9
13 October, sun
+15
+9
Feels like
+7
631 mmHg
57%
2.9
m/s
SW
Climate normal
+14
+9
13 October, Sunday. day, 15°; night, 9°; clear
14
+14
+5
14 October, mon
+14
+5
Feels like
+5
630 mmHg
43%
5.2
m/s
SW
Climate normal
+14
+8
14 October, Monday. day, 14°; night, 5°; clear
15
+16
+7
15 October, tue
+16
+7
Feels like
+8
630 mmHg
46%
1.8
m/s
SW
Climate normal
+12
+9
15 October, Tuesday. day, 16°; night, 7°; clear
16
+14
+6
16 October, wed
+14
+6
Feels like
+7
629 mmHg
39%
3.1
m/s
SW
Climate normal
+14
+9
16 October, Wednesday. day, 14°; night, 6°; mostly clear
17
+16
+5
17 October, thu
+16
+5
Feels like
+9
630 mmHg
40%
1.9
m/s
S
Climate normal
+15
+9
17 October, Thursday. day, 16°; night, 5°; clear
Average data for 10 years
Next, the average data for 10 years
18
+15
+10
18 October, fri
+15
+10
Feels like
+10
670 mmHg
46%
7.3
m/s
SW
18 October, Friday. day, 15°; night, 10°; overcast
19
+14
+9
19 October, sat
+14
+9
Feels like
+9
671 mmHg
50%
6.9
m/s
SW
19 October, Saturday. day, 14°; night, 9°; rain
Average for 30 days
22
sunny days
5
days with precipitation
3
cloudy days
22 sunny days; 5 days with precipitation; 3 cloudy days;
54
%
air humidity
4.7
m/s
Wind
SW
27
mm of precipitation
(7% of annual average)
air humidity 54%; 27 millimeters of precipitation (7% of annual average); Wind south-westerly 4.7 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
NW
SW
SW
W
SW
W
SW
SW
W
W
W
W
W
W
SW
E
SW
NW
SW
SW
NE
SW
N
SW
NW
SW
SW
SW
SW
S
18
Average data for 10 years
19
20
21
22
23
24
25
26
27
28
29
30
1
October
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Daytime temperature
Night-time temperature
