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September weather forecast in Fort Collins
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
31
+26
+11
31 August, sun
+26
+11
Feels like
+16
605 mmHg
52%
3.8
m/s
SW
31 August, Sunday. day, 26°; night, 11°; clear
1
+26
+10
1 September, mon
+26
+10
Feels like
+15
605 mmHg
54%
4
m/s
SW
1 September, Monday. day, 26°; night, 10°; clear
2
+26
+10
2 September, tue
+26
+10
Feels like
+15
605 mmHg
51%
3.9
m/s
SW
2 September, Tuesday. day, 26°; night, 10°; clear
3
+26
+10
3 September, wed
+26
+10
Feels like
+15
605 mmHg
52%
3.8
m/s
SW
3 September, Wednesday. day, 26°; night, 10°; clear
4
+26
+10
4 September, thu
+26
+10
Feels like
+15
605 mmHg
54%
3.7
m/s
SW
4 September, Thursday. day, 26°; night, 10°; clear
5
+26
+10
5 September, fri
+26
+10
Feels like
+15
605 mmHg
55%
4.1
m/s
SW
5 September, Friday. day, 26°; night, 10°; clear
6
+25
+10
6 September, sat
+25
+10
Feels like
+14
605 mmHg
54%
4.1
m/s
SW
6 September, Saturday. day, 25°; night, 10°; rain
7
+24
+9
7 September, sun
+24
+9
Feels like
+13
605 mmHg
54%
4.1
m/s
SW
7 September, Sunday. day, 24°; night, 9°; clear
8
+24
+8
8 September, mon
+24
+8
Feels like
+13
605 mmHg
57%
3.8
m/s
SW
8 September, Monday. day, 24°; night, 8°; clear
9
+23
+8
9 September, tue
+23
+8
Feels like
+12
604 mmHg
58%
3.8
m/s
SW
9 September, Tuesday. day, 23°; night, 8°; partly cloudy
10
+22
+8
10 September, wed
+22
+8
Feels like
+12
604 mmHg
58%
3.6
m/s
SW
10 September, Wednesday. day, 22°; night, 8°; rain
11
+23
+8
11 September, thu
+23
+8
Feels like
+12
605 mmHg
57%
3.9
m/s
SW
11 September, Thursday. day, 23°; night, 8°; partly cloudy
12
+23
+8
12 September, fri
+23
+8
Feels like
+12
604 mmHg
58%
4
m/s
SW
12 September, Friday. day, 23°; night, 8°; rain
13
+23
+7
13 September, sat
+23
+7
Feels like
+11
604 mmHg
56%
4
m/s
SW
13 September, Saturday. day, 23°; night, 7°; rain
14
+22
+8
14 September, sun
+22
+8
Feels like
+12
604 mmHg
57%
3.8
m/s
SW
14 September, Sunday. day, 22°; night, 8°; rain
15
+23
+7
15 September, mon
+23
+7
Feels like
+12
604 mmHg
58%
3.7
m/s
SW
15 September, Monday. day, 23°; night, 7°; rain
16
+23
+7
16 September, tue
+23
+7
Feels like
+12
603 mmHg
54%
3.8
m/s
SW
16 September, Tuesday. day, 23°; night, 7°; clear
17
+23
+8
17 September, wed
+23
+8
Feels like
+12
603 mmHg
52%
3.9
m/s
SW
17 September, Wednesday. day, 23°; night, 8°; clear
18
+22
+7
18 September, thu
+22
+7
Feels like
+11
603 mmHg
54%
4.1
m/s
SW
18 September, Thursday. day, 22°; night, 7°; clear
19
+22
+7
19 September, fri
+22
+7
Feels like
+11
603 mmHg
52%
4.3
m/s
SW
19 September, Friday. day, 22°; night, 7°; clear
20
+21
+7
20 September, sat
+21
+7
Feels like
+10
602 mmHg
54%
4.4
m/s
SW
20 September, Saturday. day, 21°; night, 7°; clear
21
+20
+6
21 September, sun
+20
+6
Feels like
+9
603 mmHg
57%
4.3
m/s
S
21 September, Sunday. day, 20°; night, 6°; partly cloudy
22
+19
+5
22 September, mon
+19
+5
Feels like
+8
603 mmHg
63%
3.9
m/s
S
22 September, Monday. day, 19°; night, 5°; rain
23
+19
+6
23 September, tue
+19
+6
Feels like
+8
602 mmHg
58%
4.69
m/s
SW
23 September, Tuesday. day, 19°; night, 6°; rain
24
+20
+5
24 September, wed
+20
+5
Feels like
+8
603 mmHg
57%
3.7
m/s
SW
24 September, Wednesday. day, 20°; night, 5°; clear
25
+21
+5
25 September, thu
+21
+5
Feels like
+9
603 mmHg
56%
3.8
m/s
SW
25 September, Thursday. day, 21°; night, 5°; clear
26
+22
+5
26 September, fri
+22
+5
Feels like
+9
603 mmHg
54%
3.6
m/s
SW
26 September, Friday. day, 22°; night, 5°; clear
27
+21
+6
27 September, sat
+21
+6
Feels like
+9
603 mmHg
52%
4.1
m/s
SW
27 September, Saturday. day, 21°; night, 6°; clear
28
+20
+5
28 September, sun
+20
+5
Feels like
+8
604 mmHg
57%
4.19
m/s
SW
28 September, Sunday. day, 20°; night, 5°; clear
29
+21
+6
29 September, mon
+21
+6
Feels like
+9
603 mmHg
56%
3.9
m/s
SW
29 September, Monday. day, 21°; night, 6°; clear
30
+20
+6
30 September, tue
+20
+6
Feels like
+9
603 mmHg
56%
4.3
m/s
SW
30 September, Tuesday. day, 20°; night, 6°; partly cloudy
1
+19
+5
1 October, wed
+19
+5
Feels like
+8
603 mmHg
58%
3.9
m/s
SW
1 October, Wednesday. day, 19°; night, 5°; clear
2
+19
+5
2 October, thu
+19
+5
Feels like
+7
602 mmHg
60%
4
m/s
SW
2 October, Thursday. day, 19°; night, 5°; rain
3
+18
+4
3 October, fri
+18
+4
Feels like
+7
601 mmHg
58%
4.19
m/s
SW
3 October, Friday. day, 18°; night, 4°; clear
4
+18
+4
4 October, sat
+18
+4
Feels like
+6
601 mmHg
62%
4.4
m/s
S
4 October, Saturday. day, 18°; night, 4°; rain
Average data for 10 years
Fort Collins September
18
sunny days
8
days with precipitation
2
cloudy days
18 sunny days; 8 days with precipitation; 2 cloudy days;
56
%
air humidity
2.2
m/s
Wind
SW
47
mm of precipitation
(9% of annual average)
air humidity 56%; 47 millimeters of precipitation (9% of annual average); Wind south-westerly 2.2 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
S
S
SW
SW
SW
SW
SW
SW
SW
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
Daytime temperature
Night-time temperature
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