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May weather forecast in Helena
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
+6
+1
28 April, sun
+6
+1
Feels like
0
666 mmHg
68%
7.1
m/s
NW
28 April, Sunday. day, 6°; night, 1°; clear
29
+7
+1
29 April, mon
+7
+1
Feels like
+2
666 mmHg
62%
5.9
m/s
NW
29 April, Monday. day, 7°; night, 1°; rain
30
+8
+2
30 April, tue
+8
+2
Feels like
+3
667 mmHg
60%
4.8
m/s
W
30 April, Tuesday. day, 8°; night, 2°; rain
1
+10
+3
1 May, wed
+10
+3
Feels like
+5
667 mmHg
50%
6.4
m/s
W
1 May, Wednesday. day, 10°; night, 3°; partly cloudy
2
+10
+4
2 May, thu
+10
+4
Feels like
+5
666 mmHg
61%
5.3
m/s
W
2 May, Thursday. day, 10°; night, 4°; rain
3
+11
+6
3 May, fri
+11
+6
Feels like
+7
666 mmHg
56%
5
m/s
W
3 May, Friday. day, 11°; night, 6°; clear
4
+12
+6
4 May, sat
+12
+6
Feels like
+9
664 mmHg
58%
4.9
m/s
W
4 May, Saturday. day, 12°; night, 6°; rain
5
+11
+4
5 May, sun
+11
+4
Feels like
+7
664 mmHg
57%
5
m/s
NW
5 May, Sunday. day, 11°; night, 4°; rain
6
+8
+3
6 May, mon
+8
+3
Feels like
+4
666 mmHg
63%
4.9
m/s
NW
6 May, Monday. day, 8°; night, 3°; overcast
7
+11
+6
7 May, tue
+11
+6
Feels like
+7
666 mmHg
58%
4.1
m/s
NW
7 May, Tuesday. day, 11°; night, 6°; partly cloudy
8
+12
+6
8 May, wed
+12
+6
Feels like
+8
664 mmHg
54%
4.8
m/s
NW
8 May, Wednesday. day, 12°; night, 6°; partly cloudy
9
+11
+5
9 May, thu
+11
+5
Feels like
+7
665 mmHg
56%
4.9
m/s
N
9 May, Thursday. day, 11°; night, 5°; rain
10
+10
+4
10 May, fri
+10
+4
Feels like
+6
667 mmHg
56%
5.4
m/s
NW
10 May, Friday. day, 10°; night, 4°; rain
11
+11
+5
11 May, sat
+11
+5
Feels like
+7
666 mmHg
57%
5.9
m/s
W
11 May, Saturday. day, 11°; night, 5°; rain
12
+12
+5
12 May, sun
+12
+5
Feels like
+8
667 mmHg
55%
4.6
m/s
NW
12 May, Sunday. day, 12°; night, 5°; rain
13
+12
+6
13 May, mon
+12
+6
Feels like
+7
668 mmHg
56%
5
m/s
W
13 May, Monday. day, 12°; night, 6°; overcast
14
+13
+7
14 May, tue
+13
+7
Feels like
+9
666 mmHg
58%
4.3
m/s
N
14 May, Tuesday. day, 13°; night, 7°; rain
15
+13
+8
15 May, wed
+13
+8
Feels like
+10
665 mmHg
60%
4.3
m/s
W
15 May, Wednesday. day, 13°; night, 8°; rain
16
+14
+9
16 May, thu
+14
+9
Feels like
+11
665 mmHg
60%
4.5
m/s
W
16 May, Thursday. day, 14°; night, 9°; rain
17
+14
+8
17 May, fri
+14
+8
Feels like
+12
665 mmHg
57%
4
m/s
NW
17 May, Friday. day, 14°; night, 8°; rain
18
+14
+7
18 May, sat
+14
+7
Feels like
+10
665 mmHg
60%
5.9
m/s
W
18 May, Saturday. day, 14°; night, 7°; clear
19
+12
+7
19 May, sun
+12
+7
Feels like
+8
666 mmHg
64%
5.3
m/s
NW
19 May, Sunday. day, 12°; night, 7°; rain
20
+15
+9
20 May, mon
+15
+9
Feels like
+12
665 mmHg
55%
4.8
m/s
SE
20 May, Monday. day, 15°; night, 9°; rain
21
+14
+7
21 May, tue
+14
+7
Feels like
+11
664 mmHg
61%
4.3
m/s
N
21 May, Tuesday. day, 14°; night, 7°; rain
22
+13
+7
22 May, wed
+13
+7
Feels like
+9
663 mmHg
64%
5.4
m/s
W
22 May, Wednesday. day, 13°; night, 7°; rain
23
+10
+5
23 May, thu
+10
+5
Feels like
+5
662 mmHg
75%
6
m/s
NW
23 May, Thursday. day, 10°; night, 5°; rain
24
+12
+7
24 May, fri
+12
+7
Feels like
+9
664 mmHg
67%
4.8
m/s
N
24 May, Friday. day, 12°; night, 7°; rain
25
+12
+6
25 May, sat
+12
+6
Feels like
+9
664 mmHg
62%
5.1
m/s
W
25 May, Saturday. day, 12°; night, 6°; clear
26
+12
+7
26 May, sun
+12
+7
Feels like
+8
665 mmHg
68%
5
m/s
NW
26 May, Sunday. day, 12°; night, 7°; clear
27
+11
+5
27 May, mon
+11
+5
Feels like
+8
665 mmHg
69%
4.4
m/s
NW
27 May, Monday. day, 11°; night, 5°; rain
28
+13
+8
28 May, tue
+13
+8
Feels like
+10
666 mmHg
62%
4.1
m/s
W
28 May, Tuesday. day, 13°; night, 8°; rain
29
+15
+9
29 May, wed
+15
+9
Feels like
+11
665 mmHg
60%
5
m/s
W
29 May, Wednesday. day, 15°; night, 9°; rain
30
+15
+9
30 May, thu
+15
+9
Feels like
+12
666 mmHg
64%
5
m/s
W
30 May, Thursday. day, 15°; night, 9°; rain
31
+15
+9
31 May, fri
+15
+9
Feels like
+13
667 mmHg
64%
4.3
m/s
NW
31 May, Friday. day, 15°; night, 9°; rain
1
+14
+9
1 June, sat
+14
+9
Feels like
+11
665 mmHg
64%
5.4
m/s
W
1 June, Saturday. day, 14°; night, 9°; rain
Average data for 10 years
Helena May
4
sunny days
22
days with precipitation
5
cloudy days
4 sunny days; 22 days with precipitation; 5 cloudy days;
61
%
air humidity
3.4
m/s
Wind
NW
99
mm of precipitation
(17% of annual average)
air humidity 61%; 99 millimeters of precipitation (17% of annual average); Wind north-westerly 3.4 Meters per second
Weather graphs for May
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
W
W
W
W
NW
NW
NW
NW
N
NW
W
NW
W
N
W
W
NW
W
NW
SE
N
W
NW
N
W
NW
NW
W
W
W
NW
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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