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May 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
28
+10
+5
28 April, sun
+10
+5
Feels like
+3
670 mmHg
62%
9.1
m/s
NW
28 April, Sunday. day, 10°; night, 5°; rain
29
+11
+6
29 April, mon
+11
+6
Feels like
+6
672 mmHg
56%
7.1
m/s
W
29 April, Monday. day, 11°; night, 6°; rain
30
+13
+7
30 April, tue
+13
+7
Feels like
+8
672 mmHg
46%
6.4
m/s
SW
30 April, Tuesday. day, 13°; night, 7°; rain
1
+14
+8
1 May, wed
+14
+8
Feels like
+8
672 mmHg
43%
7.1
m/s
W
1 May, Wednesday. day, 14°; night, 8°; partly cloudy
2
+13
+7
2 May, thu
+13
+7
Feels like
+8
671 mmHg
51%
7
m/s
SW
2 May, Thursday. day, 13°; night, 7°; clear
3
+16
+11
3 May, fri
+16
+11
Feels like
+11
671 mmHg
46%
7.1
m/s
SW
3 May, Friday. day, 16°; night, 11°; clear
4
+17
+11
4 May, sat
+17
+11
Feels like
+13
669 mmHg
46%
6.4
m/s
SW
4 May, Saturday. day, 17°; night, 11°; partly cloudy
5
+15
+9
5 May, sun
+15
+9
Feels like
+10
670 mmHg
46%
7
m/s
W
5 May, Sunday. day, 15°; night, 9°; clear
6
+13
+7
6 May, mon
+13
+7
Feels like
+8
672 mmHg
54%
7
m/s
NW
6 May, Monday. day, 13°; night, 7°; partly cloudy
7
+14
+9
7 May, tue
+14
+9
Feels like
+11
672 mmHg
49%
6
m/s
SE
7 May, Tuesday. day, 14°; night, 9°; partly cloudy
8
+16
+10
8 May, wed
+16
+10
Feels like
+12
670 mmHg
47%
6.5
m/s
SW
8 May, Wednesday. day, 16°; night, 10°; rain
9
+14
+9
9 May, thu
+14
+9
Feels like
+9
671 mmHg
49%
7.5
m/s
NE
9 May, Thursday. day, 14°; night, 9°; rain
10
+15
+9
10 May, fri
+15
+9
Feels like
+10
673 mmHg
49%
7.1
m/s
SW
10 May, Friday. day, 15°; night, 9°; clear
11
+17
+10
11 May, sat
+17
+10
Feels like
+12
672 mmHg
41%
7.5
m/s
SW
11 May, Saturday. day, 17°; night, 10°; rain
12
+16
+9
12 May, sun
+16
+9
Feels like
+11
673 mmHg
50%
7.6
m/s
W
12 May, Sunday. day, 16°; night, 9°; clear
13
+15
+10
13 May, mon
+15
+10
Feels like
+10
673 mmHg
46%
8.1
m/s
SW
13 May, Monday. day, 15°; night, 10°; partly cloudy
14
+17
+11
14 May, tue
+17
+11
Feels like
+13
672 mmHg
47%
6.6
m/s
E
14 May, Tuesday. day, 17°; night, 11°; partly cloudy
15
+17
+13
15 May, wed
+17
+13
Feels like
+13
670 mmHg
50%
6.5
m/s
S
15 May, Wednesday. day, 17°; night, 13°; clear
16
+18
+13
16 May, thu
+18
+13
Feels like
+15
671 mmHg
50%
6.6
m/s
SW
16 May, Thursday. day, 18°; night, 13°; partly cloudy
17
+18
+13
17 May, fri
+18
+13
Feels like
+16
671 mmHg
50%
5.8
m/s
SE
17 May, Friday. day, 18°; night, 13°; partly cloudy
18
+18
+12
18 May, sat
+18
+12
Feels like
+14
670 mmHg
54%
7
m/s
W
18 May, Saturday. day, 18°; night, 12°; clear
19
+15
+11
19 May, sun
+15
+11
Feels like
+11
672 mmHg
57%
7.5
m/s
SW
19 May, Sunday. day, 15°; night, 11°; rain
20
+19
+13
20 May, mon
+19
+13
Feels like
+15
671 mmHg
47%
6.5
m/s
S
20 May, Monday. day, 19°; night, 13°; partly cloudy
21
+16
+12
21 May, tue
+16
+12
Feels like
+13
669 mmHg
57%
6
m/s
E
21 May, Tuesday. day, 16°; night, 12°; rain
22
+17
+12
22 May, wed
+17
+12
Feels like
+13
668 mmHg
57%
7.3
m/s
SW
22 May, Wednesday. day, 17°; night, 12°; rain
23
+14
+10
23 May, thu
+14
+10
Feels like
+9
667 mmHg
63%
8.5
m/s
W
23 May, Thursday. day, 14°; night, 10°; rain
24
+15
+11
24 May, fri
+15
+11
Feels like
+12
669 mmHg
61%
6.9
m/s
N
24 May, Friday. day, 15°; night, 11°; overcast
25
+16
+11
25 May, sat
+16
+11
Feels like
+12
670 mmHg
57%
7.3
m/s
SW
25 May, Saturday. day, 16°; night, 11°; clear
26
+15
+10
26 May, sun
+15
+10
Feels like
+11
671 mmHg
62%
7.1
m/s
W
26 May, Sunday. day, 15°; night, 10°; partly cloudy
27
+14
+10
27 May, mon
+14
+10
Feels like
+11
671 mmHg
67%
5.9
m/s
NW
27 May, Monday. day, 14°; night, 10°; rain
28
+16
+12
28 May, tue
+16
+12
Feels like
+13
672 mmHg
58%
6.5
m/s
S
28 May, Tuesday. day, 16°; night, 12°; partly cloudy
29
+18
+13
29 May, wed
+18
+13
Feels like
+15
670 mmHg
56%
6.8
m/s
SW
29 May, Wednesday. day, 18°; night, 13°; rain
30
+18
+13
30 May, thu
+18
+13
Feels like
+15
671 mmHg
58%
6
m/s
W
30 May, Thursday. day, 18°; night, 13°; rain
31
+18
+13
31 May, fri
+18
+13
Feels like
+16
672 mmHg
57%
6.4
m/s
SW
31 May, Friday. day, 18°; night, 13°; rain
1
+18
+13
1 June, sat
+18
+13
Feels like
+15
670 mmHg
56%
6.8
m/s
SW
1 June, Saturday. day, 18°; night, 13°; rain
Average data for 10 years
Great Falls May
8
sunny days
11
days with precipitation
12
cloudy days
8 sunny days; 11 days with precipitation; 12 cloudy days;
52
%
air humidity
4.8
m/s
Wind
SW
81
mm of precipitation
(20% of annual average)
air humidity 52%; 81 millimeters of precipitation (20% of annual average); Wind south-westerly 4.8 Meters per second
Weather graphs for May
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
W
SW
SW
SW
W
NW
SE
SW
NE
SW
SW
W
SW
E
S
SW
SE
W
SW
S
E
SW
W
N
SW
W
NW
S
SW
W
SW
1
Average data for 10 years
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Daytime temperature
Night-time temperature
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