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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
27
+16
+4
27 April, sun
+16
+4
Feels like
+4
664 mmHg
49%
6.6
m/s
SW
27 April, Sunday. day, 16°; night, 4°; partly cloudy
28
+16
+4
28 April, mon
+16
+4
Feels like
+3
664 mmHg
52%
7.5
m/s
SW
28 April, Monday. day, 16°; night, 4°; rain
29
+15
+3
29 April, tue
+15
+3
Feels like
+3
665 mmHg
52%
7.1
m/s
SW
29 April, Tuesday. day, 15°; night, 3°; rain
30
+15
+3
30 April, wed
+15
+3
Feels like
+3
666 mmHg
54%
7.3
m/s
SW
30 April, Wednesday. day, 15°; night, 3°; rain
1
+16
+2
1 May, thu
+16
+2
Feels like
+3
666 mmHg
52%
6.2
m/s
SW
1 May, Thursday. day, 16°; night, 2°; clear
2
+17
+4
2 May, fri
+17
+4
Feels like
+5
664 mmHg
49%
6.5
m/s
SW
2 May, Friday. day, 17°; night, 4°; clear
3
+18
+4
3 May, sat
+18
+4
Feels like
+5
664 mmHg
51%
6.5
m/s
SW
3 May, Saturday. day, 18°; night, 4°; clear
4
+18
+5
4 May, sun
+18
+5
Feels like
+6
664 mmHg
49%
7
m/s
SW
4 May, Sunday. day, 18°; night, 5°; clear
5
+19
+5
5 May, mon
+19
+5
Feels like
+6
664 mmHg
48%
6.9
m/s
SW
5 May, Monday. day, 19°; night, 5°; partly cloudy
6
+18
+5
6 May, tue
+18
+5
Feels like
+6
664 mmHg
48%
6.7
m/s
SW
6 May, Tuesday. day, 18°; night, 5°; partly cloudy
7
+17
+5
7 May, wed
+17
+5
Feels like
+5
664 mmHg
54%
6.8
m/s
SW
7 May, Wednesday. day, 17°; night, 5°; overcast
8
+16
+4
8 May, thu
+16
+4
Feels like
+5
665 mmHg
55%
6.5
m/s
SW
8 May, Thursday. day, 16°; night, 4°; clear
9
+16
+5
9 May, fri
+16
+5
Feels like
+5
666 mmHg
55%
6.4
m/s
S
9 May, Friday. day, 16°; night, 5°; rain
10
+16
+4
10 May, sat
+16
+4
Feels like
+5
667 mmHg
56%
6.2
m/s
S
10 May, Saturday. day, 16°; night, 4°; rain
11
+17
+4
11 May, sun
+17
+4
Feels like
+5
666 mmHg
52%
5.8
m/s
S
11 May, Sunday. day, 17°; night, 4°; partly cloudy
12
+18
+5
12 May, mon
+18
+5
Feels like
+7
666 mmHg
52%
6
m/s
S
12 May, Monday. day, 18°; night, 5°; partly cloudy
13
+20
+6
13 May, tue
+20
+6
Feels like
+7
666 mmHg
51%
6.6
m/s
S
13 May, Tuesday. day, 20°; night, 6°; rain
14
+20
+6
14 May, wed
+20
+6
Feels like
+8
666 mmHg
49%
6.3
m/s
S
14 May, Wednesday. day, 20°; night, 6°; clear
15
+21
+7
15 May, thu
+21
+7
Feels like
+9
666 mmHg
48%
6.3
m/s
SW
15 May, Thursday. day, 21°; night, 7°; clear
16
+21
+8
16 May, fri
+21
+8
Feels like
+10
665 mmHg
49%
6.5
m/s
S
16 May, Friday. day, 21°; night, 8°; rain
17
+21
+8
17 May, sat
+21
+8
Feels like
+9
664 mmHg
49%
6.6
m/s
S
17 May, Saturday. day, 21°; night, 8°; partly cloudy
18
+20
+8
18 May, sun
+20
+8
Feels like
+9
664 mmHg
51%
6.7
m/s
SW
18 May, Sunday. day, 20°; night, 8°; overcast
19
+20
+7
19 May, mon
+20
+7
Feels like
+8
665 mmHg
52%
6.8
m/s
SW
19 May, Monday. day, 20°; night, 7°; partly cloudy
20
+19
+7
20 May, tue
+19
+7
Feels like
+8
665 mmHg
55%
6.5
m/s
S
20 May, Tuesday. day, 19°; night, 7°; partly cloudy
21
+19
+7
21 May, wed
+19
+7
Feels like
+8
665 mmHg
56%
6.9
m/s
SW
21 May, Wednesday. day, 19°; night, 7°; rain
22
+19
+7
22 May, thu
+19
+7
Feels like
+8
664 mmHg
57%
6.9
m/s
S
22 May, Thursday. day, 19°; night, 7°; rain
23
+18
+7
23 May, fri
+18
+7
Feels like
+8
665 mmHg
57%
6.3
m/s
S
23 May, Friday. day, 18°; night, 7°; rain
24
+19
+8
24 May, sat
+19
+8
Feels like
+9
665 mmHg
57%
6.4
m/s
S
24 May, Saturday. day, 19°; night, 8°; rain
25
+19
+8
25 May, sun
+19
+8
Feels like
+9
665 mmHg
58%
6.1
m/s
SW
25 May, Sunday. day, 19°; night, 8°; overcast
26
+20
+9
26 May, mon
+20
+9
Feels like
+10
665 mmHg
58%
6.7
m/s
S
26 May, Monday. day, 20°; night, 9°; rain
27
+20
+8
27 May, tue
+20
+8
Feels like
+10
665 mmHg
58%
6.3
m/s
S
27 May, Tuesday. day, 20°; night, 8°; partly cloudy
28
+21
+8
28 May, wed
+21
+8
Feels like
+10
665 mmHg
57%
6
m/s
SW
28 May, Wednesday. day, 21°; night, 8°; rain
29
+21
+9
29 May, thu
+21
+9
Feels like
+10
665 mmHg
56%
6
m/s
S
29 May, Thursday. day, 21°; night, 9°; rain
30
+21
+8
30 May, fri
+21
+8
Feels like
+10
666 mmHg
54%
6.4
m/s
S
30 May, Friday. day, 21°; night, 8°; clear
31
+22
+9
31 May, sat
+22
+9
Feels like
+11
666 mmHg
55%
6.3
m/s
SW
31 May, Saturday. day, 22°; night, 9°; clear
Average data for 10 years
Great Falls May
9
sunny days
11
days with precipitation
7
cloudy days
9 sunny days; 11 days with precipitation; 7 cloudy days;
52
%
air humidity
3.9
m/s
Wind
S
68
mm of precipitation
(17% of annual average)
air humidity 52%; 68 millimeters of precipitation (17% of annual average); Wind southerly 3.9 Meters per second
Weather graphs for May
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
SW
SW
SW
SW
SW
SW
SW
SW
S
S
S
S
S
S
SW
S
S
SW
SW
S
SW
S
S
S
SW
S
S
SW
S
S
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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