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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
+27
+19
18 August, sun
+27
+19
Feels like
+23
671 mmHg
34%
7.4
m/s
SW
18 August, Sunday. day, 27°; night, 19°; clear
19
+27
+20
19 August, mon
+27
+20
Feels like
+24
671 mmHg
30%
6.6
m/s
SW
19 August, Monday. day, 27°; night, 20°; clear
20
+27
+20
20 August, tue
+27
+20
Feels like
+24
671 mmHg
31%
6.8
m/s
W
20 August, Tuesday. day, 27°; night, 20°; clear
21
+26
+19
21 August, wed
+26
+19
Feels like
+23
671 mmHg
37%
7.1
m/s
SW
21 August, Wednesday. day, 26°; night, 19°; clear
22
+25
+19
22 August, thu
+25
+19
Feels like
+20
672 mmHg
36%
8.3
m/s
W
22 August, Thursday. day, 25°; night, 19°; clear
23
+26
+20
23 August, fri
+26
+20
Feels like
+22
673 mmHg
33%
6.8
m/s
W
23 August, Friday. day, 26°; night, 20°; clear
24
August
+25
+12
24 August, sat
+25
+12
Feels like
+18
672 mmHg
45%
5.6
m/s
W
Climate normal
+27
+21
24 August, Saturday. day, 25°; night, 12°; overcast
25
+25
+12
25 August, sun
+25
+12
Feels like
+17
678 mmHg
39%
4.4
m/s
W
Climate normal
+29
+21
25 August, Sunday. day, 25°; night, 12°; mostly clear
26
+25
+13
26 August, mon
+25
+13
Feels like
+18
679 mmHg
46%
4.2
m/s
SW
Climate normal
+27
+20
26 August, Monday. day, 25°; night, 13°; light rain
27
+30
+13
27 August, tue
+30
+13
Feels like
+19
674 mmHg
36%
7.6
m/s
SW
Climate normal
+27
+22
27 August, Tuesday. day, 30°; night, 13°; partly cloudy
28
+20
+10
28 August, wed
+20
+10
Feels like
+9
675 mmHg
36%
8.3
m/s
W
Climate normal
+27
+20
28 August, Wednesday. day, 20°; night, 10°; mostly clear
29
+26
+11
29 August, thu
+26
+11
Feels like
+14
679 mmHg
31%
4.5
m/s
SW
Climate normal
+27
+18
29 August, Thursday. day, 26°; night, 11°; clear
30
+30
+13
30 August, fri
+30
+13
Feels like
+18
678 mmHg
33%
4.7
m/s
SW
Climate normal
+24
+17
30 August, Friday. day, 30°; night, 13°; clear
31
+24
+12
31 August, sat
+24
+12
Feels like
+14
677 mmHg
45%
5.6
m/s
N
Climate normal
+25
+18
31 August, Saturday. day, 24°; night, 12°; mostly clear
1 September
+23
+11
1 September, sun
+23
+11
Feels like
+15
679 mmHg
51%
4.1
m/s
E
Climate normal
+25
+18
1 September, Sunday. day, 23°; night, 11°; light rain
2
+27
+12
2 September, mon
+27
+12
Feels like
+17
679 mmHg
46%
4
m/s
NE
Climate normal
+23
+16
2 September, Monday. day, 27°; night, 12°; clear
3
+27
+14
3 September, tue
+27
+14
Feels like
+18
678 mmHg
48%
3.7
m/s
W
Climate normal
+23
+17
3 September, Tuesday. day, 27°; night, 14°; mostly clear
4
+27
+15
4 September, wed
+27
+15
Feels like
+18
676 mmHg
43%
3.8
m/s
W
Climate normal
+20
+15
4 September, Wednesday. day, 27°; night, 15°; mostly clear
5
+25
+15
5 September, thu
+25
+15
Feels like
+16
664 mmHg
38%
3.9
m/s
W
Climate normal
+22
+15
5 September, Thursday. day, 25°; night, 15°; mostly clear
6
+24
+11
6 September, fri
+24
+11
Feels like
+17
629 mmHg
37%
3
m/s
SW
Climate normal
+21
+15
6 September, Friday. day, 24°; night, 11°; clear
7
+24
+15
7 September, sat
+24
+15
Feels like
+16
629 mmHg
46%
3.3
m/s
E
Climate normal
+22
+15
7 September, Saturday. day, 24°; night, 15°; clear
8
+24
+15
8 September, sun
+24
+15
Feels like
+18
631 mmHg
51%
2.9
m/s
E
Climate normal
+21
+15
8 September, Sunday. day, 24°; night, 15°; mostly clear
9
+26
+15
9 September, mon
+26
+15
Feels like
+19
631 mmHg
43%
2.3
m/s
E
Climate normal
+22
+15
9 September, Monday. day, 26°; night, 15°; mostly clear
10
+26
+15
10 September, tue
+26
+15
Feels like
+18
629 mmHg
34%
2.2
m/s
SW
Climate normal
+22
+15
10 September, Tuesday. day, 26°; night, 15°; mostly clear
11
+25
+14
11 September, wed
+25
+14
Feels like
+18
629 mmHg
36%
2.4
m/s
NW
Climate normal
+23
+15
11 September, Wednesday. day, 25°; night, 14°; clear
12
+25
+15
12 September, thu
+25
+15
Feels like
+18
628 mmHg
37%
2.5
m/s
E
Climate normal
+20
+13
12 September, Thursday. day, 25°; night, 15°; clear
13
+20
+12
13 September, fri
+20
+12
Feels like
+15
629 mmHg
56%
2.8
m/s
NW
Climate normal
+18
+12
13 September, Friday. day, 20°; night, 12°; mostly clear
14
+18
+11
14 September, sat
+18
+11
Feels like
+13
631 mmHg
67%
2.3
m/s
N
Climate normal
+22
+16
14 September, Saturday. day, 18°; night, 11°; partly cloudy
15
+23
+14
15 September, sun
+23
+14
Feels like
+14
632 mmHg
45%
2.7
m/s
SW
Climate normal
+21
+15
15 September, Sunday. day, 23°; night, 14°; clear
16
+26
+12
16 September, mon
+26
+12
Feels like
+16
634 mmHg
33%
3.4
m/s
SW
Climate normal
+21
+15
16 September, Monday. day, 26°; night, 12°; clear
17
+27
+14
17 September, tue
+27
+14
Feels like
+18
634 mmHg
33%
2.9
m/s
SW
Climate normal
+20
+15
17 September, Tuesday. day, 27°; night, 14°; clear
18
+26
+14
18 September, wed
+26
+14
Feels like
+17
632 mmHg
31%
3.5
m/s
SW
Climate normal
+21
+14
18 September, Wednesday. day, 26°; night, 14°; clear
19
+24
+13
19 September, thu
+24
+13
Feels like
+12
627 mmHg
27%
8
m/s
SW
Climate normal
+21
+15
19 September, Thursday. day, 24°; night, 13°; mostly clear
20
+17
+11
20 September, fri
+17
+11
Feels like
+8
628 mmHg
38%
5.6
m/s
W
Climate normal
+20
+14
20 September, Friday. day, 17°; night, 11°; mostly clear
21
+20
+11
21 September, sat
+20
+11
Feels like
+11
628 mmHg
40%
4.8
m/s
SW
Climate normal
+19
+14
21 September, Saturday. day, 20°; night, 11°; mostly clear
Average for 30 days
26
sunny days
1
day with precipitation
3
cloudy days
26 sunny days; 1 day with precipitation; 3 cloudy days;
41
%
air humidity
4.2
m/s
Wind
SW
0.5
mm of precipitation
(1% of annual average)
air humidity 41%; 0.5 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
W
W
SW
SW
W
SW
SW
N
E
NE
W
W
W
SW
E
E
E
SW
NW
E
NW
N
SW
SW
SW
SW
SW
W
SW
NW
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
