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Monthly 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
18
August
+33
+15
18 August, sun
+33
+15
Feels like
+25
662 mmHg
42%
4.5
m/s
E
Climate normal
+24
+15
18 August, Sunday. day, 33°; night, 15°; thunderstorm with rain
19
+31
+13
19 August, mon
+31
+13
Feels like
+23
662 mmHg
51%
5.5
m/s
SW
Climate normal
+24
+16
19 August, Monday. day, 31°; night, 13°; thunderstorm
20
+30
+14
20 August, tue
+30
+14
Feels like
+23
662 mmHg
51%
3.8
m/s
NE
Climate normal
+24
+16
20 August, Tuesday. day, 30°; night, 14°; thunderstorm with rain
21
+27
+13
21 August, wed
+27
+13
Feels like
+19
660 mmHg
43%
4.3
m/s
N
Climate normal
+22
+14
21 August, Wednesday. day, 27°; night, 13°; light rain
22
+27
+14
22 August, thu
+27
+14
Feels like
+17
655 mmHg
48%
3.8
m/s
NE
Climate normal
+21
+15
22 August, Thursday. day, 27°; night, 14°; light rain
23
+30
+16
23 August, fri
+30
+16
Feels like
+18
652 mmHg
45%
7.3
m/s
SW
Climate normal
+22
+17
23 August, Friday. day, 30°; night, 16°; mostly clear
24
+24
+14
24 August, sat
+24
+14
Feels like
+14
652 mmHg
42%
7
m/s
W
Climate normal
+23
+17
24 August, Saturday. day, 24°; night, 14°; light rain
25
+23
+13
25 August, sun
+23
+13
Feels like
+14
658 mmHg
56%
5.1
m/s
NW
Climate normal
+25
+17
25 August, Sunday. day, 23°; night, 13°; rain
26
+26
+14
26 August, mon
+26
+14
Feels like
+17
661 mmHg
57%
4.2
m/s
NW
Climate normal
+23
+16
26 August, Monday. day, 26°; night, 14°; mostly clear
27
+27
+14
27 August, tue
+27
+14
Feels like
+18
661 mmHg
50%
4.4
m/s
W
Climate normal
+23
+17
27 August, Tuesday. day, 27°; night, 14°; mostly clear
28
+26
+14
28 August, wed
+26
+14
Feels like
+16
656 mmHg
43%
5
m/s
W
Climate normal
+23
+16
28 August, Wednesday. day, 26°; night, 14°; mostly clear
29
+27
+15
29 August, thu
+27
+15
Feels like
+18
657 mmHg
46%
3.9
m/s
W
Climate normal
+22
+14
29 August, Thursday. day, 27°; night, 15°; clear
30
+29
+14
30 August, fri
+29
+14
Feels like
+19
657 mmHg
39%
4.1
m/s
W
Climate normal
+20
+14
30 August, Friday. day, 29°; night, 14°; mostly clear
31
+26
+14
31 August, sat
+26
+14
Feels like
+18
608 mmHg
36%
1.6
m/s
NW
Climate normal
+20
+13
31 August, Saturday. day, 26°; night, 14°; mostly clear
1 September
+25
+14
1 September, sun
+25
+14
Feels like
+17
609 mmHg
44%
1.5
m/s
NE
Climate normal
+21
+14
1 September, Sunday. day, 25°; night, 14°; mostly clear
2
+27
+14
2 September, mon
+27
+14
Feels like
+18
608 mmHg
28%
1.7
m/s
E
Climate normal
+19
+12
2 September, Monday. day, 27°; night, 14°; partly cloudy
3
+25
+14
3 September, tue
+25
+14
Feels like
+17
607 mmHg
40%
1.6
m/s
E
Climate normal
+19
+12
3 September, Tuesday. day, 25°; night, 14°; mostly clear
4
+26
+14
4 September, wed
+26
+14
Feels like
+16
605 mmHg
17%
1.6
m/s
E
Climate normal
+16
+11
4 September, Wednesday. day, 26°; night, 14°; partly cloudy
5
+24
+11
5 September, thu
+24
+11
Feels like
+16
604 mmHg
37%
2.6
m/s
W
Climate normal
+19
+12
5 September, Thursday. day, 24°; night, 11°; partly cloudy
6
+20
+11
6 September, fri
+20
+11
Feels like
+11
605 mmHg
35%
4.4
m/s
NW
Climate normal
+18
+11
6 September, Friday. day, 20°; night, 11°; partly cloudy
7
+22
+7
7 September, sat
+22
+7
Feels like
+12
607 mmHg
34%
2.5
m/s
N
Climate normal
+18
+11
7 September, Saturday. day, 22°; night, 7°; clear
8
+19
+6
8 September, sun
+19
+6
Feels like
+7
606 mmHg
41%
8
m/s
NE
Climate normal
+18
+12
8 September, Sunday. day, 19°; night, 6°; clear
9
+15
+2
9 September, mon
+15
+2
Feels like
+6
607 mmHg
60%
3.2
m/s
NE
Climate normal
+19
+11
9 September, Monday. day, 15°; night, 2°; mostly clear
10
+22
+10
10 September, tue
+22
+10
Feels like
+14
604 mmHg
93%
2.6
m/s
NW
Climate normal
+18
+11
10 September, Tuesday. day, 22°; night, 10°; rain
11
+23
+5
11 September, wed
+23
+5
Feels like
+15
603 mmHg
80%
2.9
m/s
SW
Climate normal
+20
+11
11 September, Wednesday. day, 23°; night, 5°; light rain
12
+22
+8
12 September, thu
+22
+8
Feels like
+13
603 mmHg
60%
3.4
m/s
NW
Climate normal
+17
+10
12 September, Thursday. day, 22°; night, 8°; clear
13
+21
+9
13 September, fri
+21
+9
Feels like
+9
603 mmHg
47%
4.3
m/s
NW
Climate normal
+16
+9
13 September, Friday. day, 21°; night, 9°; clear
14
+16
+5
14 September, sat
+16
+5
Feels like
+7
603 mmHg
46%
4
m/s
NW
Climate normal
+18
+12
14 September, Saturday. day, 16°; night, 5°; mostly clear
15
+20
+11
15 September, sun
+20
+11
Feels like
+11
604 mmHg
59%
3.4
m/s
NW
Climate normal
+18
+11
15 September, Sunday. day, 20°; night, 11°; light rain
16
+23
+13
16 September, mon
+23
+13
Feels like
+13
604 mmHg
51%
4.2
m/s
NW
Climate normal
+17
+10
16 September, Monday. day, 23°; night, 13°; mostly clear
Average data for 10 years
Next, the average data for 10 years
17
+17
+10
17 September, tue
+17
+10
Feels like
+13
666 mmHg
54%
5.5
m/s
W
17 September, Tuesday. day, 17°; night, 10°; rain
18
+17
+10
18 September, wed
+17
+10
Feels like
+13
665 mmHg
47%
6.4
m/s
W
18 September, Wednesday. day, 17°; night, 10°; partly cloudy
19
+17
+10
19 September, thu
+17
+10
Feels like
+13
666 mmHg
49%
5.5
m/s
W
19 September, Thursday. day, 17°; night, 10°; clear
20
+17
+10
20 September, fri
+17
+10
Feels like
+13
666 mmHg
43%
4.8
m/s
W
20 September, Friday. day, 17°; night, 10°; partly cloudy
21
+15
+10
21 September, sat
+15
+10
Feels like
+11
666 mmHg
58%
4.6
m/s
W
21 September, Saturday. day, 15°; night, 10°; overcast
Average for 30 days
20
sunny days
5
days with precipitation
5
cloudy days
20 sunny days; 5 days with precipitation; 5 cloudy days;
47
%
air humidity
3.9
m/s
Wind
NW
10
mm of precipitation
(2% of annual average)
air humidity 47%; 10 millimeters of precipitation (2% of annual average); Wind north-westerly 3.9 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
E
SW
NE
N
NE
SW
W
NW
NW
W
W
W
W
NW
NE
E
E
E
W
NW
N
NE
NE
NW
SW
NW
NW
NW
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
