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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
+21
+14
18 September, wed
+21
+14
Feels like
+16
670 mmHg
37%
8.6
m/s
W
18 September, Wednesday. day, 21°; night, 14°; clear
19
+21
+15
19 September, thu
+21
+15
Feels like
+16
671 mmHg
38%
7.5
m/s
SW
19 September, Thursday. day, 21°; night, 15°; clear
20
September
+21
+7
20 September, fri
+21
+7
Feels like
+8
669 mmHg
42%
12.1
m/s
W
Climate normal
+20
+14
20 September, Friday. day, 21°; night, 7°; partly cloudy
21
+17
+7
21 September, sat
+17
+7
Feels like
+10
677 mmHg
54%
3
m/s
E
Climate normal
+19
+14
21 September, Saturday. day, 17°; night, 7°; mostly clear
22
+24
+13
22 September, sun
+24
+13
Feels like
+13
672 mmHg
40%
6.8
m/s
SW
Climate normal
+21
+15
22 September, Sunday. day, 24°; night, 13°; partly cloudy
23
+21
+11
23 September, mon
+21
+11
Feels like
+14
676 mmHg
48%
3.7
m/s
NW
Climate normal
+22
+16
23 September, Monday. day, 21°; night, 11°; partly cloudy
24
+25
+11
24 September, tue
+25
+11
Feels like
+16
678 mmHg
52%
4.2
m/s
SW
Climate normal
+23
+17
24 September, Tuesday. day, 25°; night, 11°; clear
25
+30
+16
25 September, wed
+30
+16
Feels like
+17
675 mmHg
46%
6.8
m/s
SW
Climate normal
+22
+15
25 September, Wednesday. day, 30°; night, 16°; clear
26
+29
+14
26 September, thu
+29
+14
Feels like
+18
675 mmHg
45%
6
m/s
SW
Climate normal
+19
+14
26 September, Thursday. day, 29°; night, 14°; clear
27
+26
+11
27 September, fri
+26
+11
Feels like
+13
674 mmHg
40%
9.3
m/s
SW
Climate normal
+20
+14
27 September, Friday. day, 26°; night, 11°; mostly clear
28
+18
+8
28 September, sat
+18
+8
Feels like
+10
677 mmHg
51%
3.8
m/s
W
Climate normal
+21
+15
28 September, Saturday. day, 18°; night, 8°; partly cloudy
29
+18
+9
29 September, sun
+18
+9
Feels like
+7
679 mmHg
53%
6.7
m/s
N
Climate normal
+20
+14
29 September, Sunday. day, 18°; night, 9°; partly cloudy
30
+14
+7
30 September, mon
+14
+7
Feels like
+6
677 mmHg
64%
5
m/s
NW
Climate normal
+18
+12
30 September, Monday. day, 14°; night, 7°; partly cloudy
1 October
+19
+9
1 October, tue
+19
+9
Feels like
+11
677 mmHg
59%
3.7
m/s
SE
Climate normal
+17
+12
1 October, Tuesday. day, 19°; night, 9°; clear
2
+18
+7
2 October, wed
+18
+7
Feels like
+9
630 mmHg
32%
1.7
m/s
SW
Climate normal
+15
+9
2 October, Wednesday. day, 18°; night, 7°; mostly clear
3
+21
+12
3 October, thu
+21
+12
Feels like
+12
625 mmHg
42%
4
m/s
NW
Climate normal
+12
+8
3 October, Thursday. day, 21°; night, 12°; clear
4
+20
+11
4 October, fri
+20
+11
Feels like
+12
624 mmHg
31%
3.8
m/s
SW
Climate normal
+13
+8
4 October, Friday. day, 20°; night, 11°; clear
5
+12
+6
5 October, sat
+12
+6
Feels like
+6
626 mmHg
58%
4.6
m/s
NW
Climate normal
+15
+10
5 October, Saturday. day, 12°; night, 6°; partly cloudy
6
+7
+2
6 October, sun
+7
+2
Feels like
+1
629 mmHg
67%
2.6
m/s
NW
Climate normal
+13
+8
6 October, Sunday. day, 7°; night, 2°; light rain
7
+12
+4
7 October, mon
+12
+4
Feels like
+3
627 mmHg
55%
3.2
m/s
SW
Climate normal
+14
+8
7 October, Monday. day, 12°; night, 4°; mostly clear
8
+10
+8
8 October, tue
+10
+8
Feels like
+1
625 mmHg
48%
5.5
m/s
SW
Climate normal
+13
+8
8 October, Tuesday. day, 10°; night, 8°; light rain
9
+8
+1
9 October, wed
+8
+1
Feels like
+1
627 mmHg
56%
5.9
m/s
W
Climate normal
+14
+8
9 October, Wednesday. day, 8°; night, 1°; mostly clear
10
+5
−2
10 October, thu
+5
−2
Feels like
−3
634 mmHg
53%
3
m/s
W
Climate normal
+9
+4
10 October, Thursday. day, 5°; night, -2°; clear
11
+10
+3
11 October, fri
+10
+3
Feels like
−1
636 mmHg
40%
3.1
m/s
SW
Climate normal
+8
+5
11 October, Friday. day, 10°; night, 3°; clear
12
+13
+5
12 October, sat
+13
+5
Feels like
+4
636 mmHg
44%
4.1
m/s
NW
Climate normal
+12
+7
12 October, Saturday. day, 13°; night, 5°; clear
13
+14
+8
13 October, sun
+14
+8
Feels like
+7
634 mmHg
52%
2.8
m/s
SW
Climate normal
+14
+9
13 October, Sunday. day, 14°; night, 8°; clear
14
+16
+7
14 October, mon
+16
+7
Feels like
+7
630 mmHg
44%
4.1
m/s
SW
Climate normal
+14
+8
14 October, Monday. day, 16°; night, 7°; clear
15
+17
+9
15 October, tue
+17
+9
Feels like
+8
629 mmHg
39%
3.2
m/s
SW
Climate normal
+12
+9
15 October, Tuesday. day, 17°; night, 9°; clear
16
+15
+10
16 October, wed
+15
+10
Feels like
+8
631 mmHg
44%
3.3
m/s
SW
Climate normal
+14
+9
16 October, Wednesday. day, 15°; night, 10°; mostly clear
17
+18
+12
17 October, thu
+18
+12
Feels like
+9
631 mmHg
37%
4.8
m/s
SW
Climate normal
+15
+9
17 October, Thursday. day, 18°; night, 12°; mostly clear
18
+18
+11
18 October, fri
+18
+11
Feels like
+9
629 mmHg
36%
4.8
m/s
SW
Climate normal
+15
+10
18 October, Friday. day, 18°; night, 11°; mostly clear
19
+10
+4
19 October, sat
+10
+4
Feels like
+5
631 mmHg
74%
4.2
m/s
NW
Climate normal
+14
+9
19 October, Saturday. day, 10°; night, 4°; rain
Average for 30 days
20
sunny days
3
days with precipitation
7
cloudy days
20 sunny days; 3 days with precipitation; 7 cloudy days;
48
%
air humidity
4.7
m/s
Wind
SW
2
mm of precipitation
(1% of annual average)
air humidity 48%; 2 millimeters of precipitation (1% of annual average); Wind south-westerly 4.7 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
W
E
SW
NW
SW
SW
SW
SW
W
N
NW
SE
SW
NW
SW
NW
NW
SW
SW
W
W
SW
NW
SW
SW
SW
SW
SW
SW
NW
20
Average data for 10 years
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
18
19
Daytime temperature
Night-time temperature
