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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
18
August
+34
+17
18 August, sun
+34
+17
Feels like
+25
676 mmHg
43%
5.1
m/s
NE
Climate normal
+27
+19
18 August, Sunday. day, 34°; night, 17°; light rain
19
+33
+16
19 August, mon
+33
+16
Feels like
+23
676 mmHg
50%
6
m/s
SW
Climate normal
+27
+20
19 August, Monday. day, 33°; night, 16°; thunderstorm
20
+30
+15
20 August, tue
+30
+15
Feels like
+23
675 mmHg
45%
4.6
m/s
W
Climate normal
+27
+20
20 August, Tuesday. day, 30°; night, 15°; thunderstorm with rain
21
+28
+14
21 August, wed
+28
+14
Feels like
+19
674 mmHg
43%
4.6
m/s
SE
Climate normal
+26
+19
21 August, Wednesday. day, 28°; night, 14°; thunderstorm with rain
22
+26
+16
22 August, thu
+26
+16
Feels like
+19
674 mmHg
50%
4.7
m/s
NE
Climate normal
+25
+19
22 August, Thursday. day, 26°; night, 16°; partly cloudy
23
+30
+16
23 August, fri
+30
+16
Feels like
+18
670 mmHg
46%
7.9
m/s
SW
Climate normal
+26
+20
23 August, Friday. day, 30°; night, 16°; partly cloudy
24
+24
+15
24 August, sat
+24
+15
Feels like
+13
671 mmHg
42%
10.3
m/s
W
Climate normal
+27
+21
24 August, Saturday. day, 24°; night, 15°; overcast
25
+24
+14
25 August, sun
+24
+14
Feels like
+15
677 mmHg
51%
7.6
m/s
W
Climate normal
+29
+21
25 August, Sunday. day, 24°; night, 14°; light rain
26
+26
+14
26 August, mon
+26
+14
Feels like
+18
680 mmHg
52%
4
m/s
SW
Climate normal
+27
+20
26 August, Monday. day, 26°; night, 14°; mostly clear
27
+28
+15
27 August, tue
+28
+15
Feels like
+17
678 mmHg
44%
6.3
m/s
W
Climate normal
+27
+22
27 August, Tuesday. day, 28°; night, 15°; clear
28
+28
+16
28 August, wed
+28
+16
Feels like
+18
676 mmHg
43%
5.4
m/s
NW
Climate normal
+27
+20
28 August, Wednesday. day, 28°; night, 16°; mostly clear
29
+28
+17
29 August, thu
+28
+17
Feels like
+20
676 mmHg
51%
4.1
m/s
SW
Climate normal
+27
+18
29 August, Thursday. day, 28°; night, 17°; mostly clear
30
+28
+14
30 August, fri
+28
+14
Feels like
+20
667 mmHg
40%
4.1
m/s
W
Climate normal
+24
+17
30 August, Friday. day, 28°; night, 14°; mostly clear
31
+28
+15
31 August, sat
+28
+15
Feels like
+18
634 mmHg
27%
2.9
m/s
SW
Climate normal
+25
+18
31 August, Saturday. day, 28°; night, 15°; clear
1 September
+28
+18
1 September, sun
+28
+18
Feels like
+19
636 mmHg
37%
2.5
m/s
E
Climate normal
+25
+18
1 September, Sunday. day, 28°; night, 18°; clear
2
+28
+19
2 September, mon
+28
+19
Feels like
+21
635 mmHg
34%
2.2
m/s
E
Climate normal
+23
+16
2 September, Monday. day, 28°; night, 19°; mostly clear
3
+26
+18
3 September, tue
+26
+18
Feels like
+20
633 mmHg
37%
2.3
m/s
E
Climate normal
+23
+17
3 September, Tuesday. day, 26°; night, 18°; partly cloudy
4
+27
+18
4 September, wed
+27
+18
Feels like
+20
632 mmHg
24%
2.3
m/s
E
Climate normal
+20
+15
4 September, Wednesday. day, 27°; night, 18°; partly cloudy
5
+29
+16
5 September, thu
+29
+16
Feels like
+22
630 mmHg
46%
2.3
m/s
SW
Climate normal
+22
+15
5 September, Thursday. day, 29°; night, 16°; mostly clear
6
+21
+11
6 September, fri
+21
+11
Feels like
+14
632 mmHg
52%
4.5
m/s
NW
Climate normal
+21
+15
6 September, Friday. day, 21°; night, 11°; partly cloudy
7
+23
+11
7 September, sat
+23
+11
Feels like
+14
634 mmHg
38%
1.4
m/s
SW
Climate normal
+22
+15
7 September, Saturday. day, 23°; night, 11°; clear
8
+15
+5
8 September, sun
+15
+5
Feels like
+6
634 mmHg
49%
6
m/s
NE
Climate normal
+21
+15
8 September, Sunday. day, 15°; night, 5°; partly cloudy
9
+15
+6
9 September, mon
+15
+6
Feels like
+7
636 mmHg
82%
2.7
m/s
NW
Climate normal
+22
+15
9 September, Monday. day, 15°; night, 6°; light rain
10
+23
+8
10 September, tue
+23
+8
Feels like
+15
630 mmHg
95%
3.2
m/s
SW
Climate normal
+22
+15
10 September, Tuesday. day, 23°; night, 8°; rain
11
+23
+12
11 September, wed
+23
+12
Feels like
+16
629 mmHg
79%
3.4
m/s
SW
Climate normal
+23
+15
11 September, Wednesday. day, 23°; night, 12°; light rain
12
+19
+10
12 September, thu
+19
+10
Feels like
+10
631 mmHg
62%
4.8
m/s
NE
Climate normal
+20
+13
12 September, Thursday. day, 19°; night, 10°; clear
13
+21
+8
13 September, fri
+21
+8
Feels like
+13
630 mmHg
47%
2.4
m/s
E
Climate normal
+18
+12
13 September, Friday. day, 21°; night, 8°; clear
14
+16
+11
14 September, sat
+16
+11
Feels like
+9
631 mmHg
44%
2.6
m/s
N
Climate normal
+22
+16
14 September, Saturday. day, 16°; night, 11°; partly cloudy
15
+20
+11
15 September, sun
+20
+11
Feels like
+12
630 mmHg
58%
3.4
m/s
NW
Climate normal
+21
+15
15 September, Sunday. day, 20°; night, 11°; light rain
16
+23
+13
16 September, mon
+23
+13
Feels like
+16
630 mmHg
54%
2.5
m/s
NW
Climate normal
+21
+15
16 September, Monday. day, 23°; night, 13°; clear
Average data for 10 years
Next, the average data for 10 years
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
+20
+14
20 September, fri
+20
+14
Feels like
+16
672 mmHg
34%
6.5
m/s
SW
20 September, Friday. day, 20°; night, 14°; partly cloudy
21
+19
+14
21 September, sat
+19
+14
Feels like
+15
672 mmHg
47%
6.9
m/s
SW
21 September, Saturday. day, 19°; night, 14°; partly cloudy
Average for 30 days
17
sunny days
4
days with precipitation
9
cloudy days
17 sunny days; 4 days with precipitation; 9 cloudy days;
49
%
air humidity
4.2
m/s
Wind
SW
4
mm of precipitation
(1% of annual average)
air humidity 49%; 4 millimeters of precipitation (1% of annual average); Wind south-westerly 4.2 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
NE
SW
W
SE
NE
SW
W
W
SW
W
NW
SW
W
SW
E
E
E
E
SW
NW
SW
NE
NW
SW
SW
NE
E
N
NW
NW
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