10 day forecast
Monthly forecast
Weather map
City or area
Find
Sign up
Log in
Go to comparison
Monthly weather forecast in Boulder
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
22
+16
+9
22 September, sun
+16
+9
Feels like
+11
647 mmHg
46%
5.8
m/s
E
22 September, Sunday. day, 16°; night, 9°; clear
23
+17
+11
23 September, mon
+17
+11
Feels like
+13
648 mmHg
41%
6.5
m/s
SE
23 September, Monday. day, 17°; night, 11°; clear
24
+17
+11
24 September, tue
+17
+11
Feels like
+13
647 mmHg
40%
5
m/s
S
24 September, Tuesday. day, 17°; night, 11°; rain
25
+18
+12
25 September, wed
+18
+12
Feels like
+14
647 mmHg
37%
5.3
m/s
E
25 September, Wednesday. day, 18°; night, 12°; clear
26
+17
+11
26 September, thu
+17
+11
Feels like
+13
648 mmHg
44%
5
m/s
E
26 September, Thursday. day, 17°; night, 11°; partly cloudy
27
+16
+11
27 September, fri
+16
+11
Feels like
+13
649 mmHg
44%
5.3
m/s
SE
27 September, Friday. day, 16°; night, 11°; rain
28
September
+32
+14
28 September, sat
+32
+14
Feels like
+23
635 mmHg
34%
3.6
m/s
E
Climate normal
+16
+10
28 September, Saturday. day, 32°; night, 14°; clear
29
+31
+18
29 September, sun
+31
+18
Feels like
+24
633 mmHg
33%
4
m/s
E
Climate normal
+17
+10
29 September, Sunday. day, 31°; night, 18°; mostly clear
30
+27
+7
30 September, mon
+27
+7
Feels like
+20
634 mmHg
32%
5.1
m/s
NE
Climate normal
+16
+9
30 September, Monday. day, 27°; night, 7°; mostly clear
1 October
+25
+14
1 October, tue
+25
+14
Feels like
+15
634 mmHg
33%
3.1
m/s
E
Climate normal
+14
+8
1 October, Tuesday. day, 25°; night, 14°; mostly clear
2
+31
+15
2 October, wed
+31
+15
Feels like
+18
628 mmHg
22%
7.4
m/s
W
Climate normal
+14
+9
2 October, Wednesday. day, 31°; night, 15°; clear
3
+28
+11
3 October, thu
+28
+11
Feels like
+16
632 mmHg
27%
4.2
m/s
W
Climate normal
+14
+6
3 October, Thursday. day, 28°; night, 11°; mostly clear
4
+26
+13
4 October, fri
+26
+13
Feels like
+15
636 mmHg
35%
3.6
m/s
W
Climate normal
+12
+6
4 October, Friday. day, 26°; night, 13°; clear
5
+30
+13
5 October, sat
+30
+13
Feels like
+18
632 mmHg
28%
5.5
m/s
W
Climate normal
+11
+5
5 October, Saturday. day, 30°; night, 13°; mostly clear
6
+21
+8
6 October, sun
+21
+8
Feels like
+11
634 mmHg
50%
3.6
m/s
W
Climate normal
+12
+6
6 October, Sunday. day, 21°; night, 8°; partly cloudy
7
+22
+8
7 October, mon
+22
+8
Feels like
+11
629 mmHg
43%
5.2
m/s
SW
Climate normal
+11
+5
7 October, Monday. day, 22°; night, 8°; clear
8
+24
+10
8 October, tue
+24
+10
Feels like
+10
628 mmHg
42%
7.9
m/s
W
Climate normal
+10
+4
8 October, Tuesday. day, 24°; night, 10°; mostly clear
9
+26
+10
9 October, wed
+26
+10
Feels like
+12
628 mmHg
47%
7.8
m/s
W
Climate normal
+10
+5
9 October, Wednesday. day, 26°; night, 10°; mostly clear
10
+25
+7
10 October, thu
+25
+7
Feels like
+13
627 mmHg
48%
4.6
m/s
SW
Climate normal
+12
+7
10 October, Thursday. day, 25°; night, 7°; clear
11
+15
+5
11 October, fri
+15
+5
Feels like
+7
548 mmHg
59%
1.5
m/s
SW
Climate normal
+10
+4
11 October, Friday. day, 15°; night, 5°; light rain
12
+14
+4
12 October, sat
+14
+4
Feels like
+6
548 mmHg
62%
2.2
m/s
SW
Climate normal
+10
+4
12 October, Saturday. day, 14°; night, 4°; light rain
13
+12
+1
13 October, sun
+12
+1
Feels like
+3
549 mmHg
47%
2.1
m/s
W
Climate normal
+11
+6
13 October, Sunday. day, 12°; night, 1°; clear
14
+14
+3
14 October, mon
+14
+3
Feels like
+4
548 mmHg
39%
2.4
m/s
W
Climate normal
+12
+6
14 October, Monday. day, 14°; night, 3°; clear
15
+12
+3
15 October, tue
+12
+3
Feels like
+2
546 mmHg
36%
2.9
m/s
W
Climate normal
+13
+7
15 October, Tuesday. day, 12°; night, 3°; partly cloudy
16
+12
+4
16 October, wed
+12
+4
Feels like
+2
545 mmHg
40%
2.7
m/s
NW
Climate normal
+13
+6
16 October, Wednesday. day, 12°; night, 4°; partly cloudy
17
+10
+3
17 October, thu
+10
+3
Feels like
0
544 mmHg
35%
5.3
m/s
W
Climate normal
+11
+6
17 October, Thursday. day, 10°; night, 3°; partly cloudy
18
+3
−3
18 October, fri
+3
−3
Feels like
−5
545 mmHg
34%
4.4
m/s
W
Climate normal
+13
+7
18 October, Friday. day, 3°; night, -3°; partly cloudy
19
+2
−7
19 October, sat
+2
−7
Feels like
−6
549 mmHg
50%
2.7
m/s
NW
Climate normal
+12
+6
19 October, Saturday. day, 2°; night, -7°; partly cloudy
20
+9
0
20 October, sun
+9
0
Feels like
−4
549 mmHg
27%
3.3
m/s
W
Climate normal
+9
+5
20 October, Sunday. day, 9°; night, 0°; partly cloudy
21
+11
+1
21 October, mon
+11
+1
Feels like
0
548 mmHg
21%
4
m/s
W
Climate normal
+10
+5
21 October, Monday. day, 11°; night, 1°; overcast
22
+10
+2
22 October, tue
+10
+2
Feels like
0
547 mmHg
32%
5.1
m/s
W
Climate normal
+10
+5
22 October, Tuesday. day, 10°; night, 2°; partly cloudy
23
+12
+2
23 October, wed
+12
+2
Feels like
+2
549 mmHg
39%
2
m/s
E
Climate normal
+12
+6
23 October, Wednesday. day, 12°; night, 2°; partly cloudy
24
+12
+3
24 October, thu
+12
+3
Feels like
+1
549 mmHg
41%
3.5
m/s
W
Climate normal
+12
+3
24 October, Thursday. day, 12°; night, 3°; partly cloudy
25
+12
+4
25 October, fri
+12
+4
Feels like
+2
547 mmHg
40%
3.6
m/s
W
Climate normal
+7
+2
25 October, Friday. day, 12°; night, 4°; mostly clear
26
+10
+4
26 October, sat
+10
+4
Feels like
+1
545 mmHg
48%
3.6
m/s
W
Climate normal
+6
0
26 October, Saturday. day, 10°; night, 4°; light rain
Average for 30 days
19
sunny days
0
days with precipitation
11
cloudy days
19 sunny days; 0 days with precipitation; 11 cloudy days;
40
%
air humidity
4
m/s
Wind
W
0.9
mm of precipitation
(1% of annual average)
air humidity 40%; 0.9 millimeters of precipitation (1% of annual average); Wind westerly 4 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
E
E
NE
E
W
W
W
W
W
SW
W
W
SW
SW
SW
W
W
W
NW
W
W
NW
W
W
W
E
W
W
W
E
28
Average data for 10 years
29
30
1
October
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
Daytime temperature
Night-time temperature
