Dailymet

Weather Boulder: Current forecast

Boulder / Colorado (CO) / United States

15.1 °C
Feels like 12.7 °C
Min 10 °C / Max 22 °C
Weather Boulder: Moderate rain at times, 15 °C Moderate rain at times
5.2 mph NE
Wind
9.4 mph NE
Gusts
1016 hPa
Pressure
0.7 mm
Precipitation
58 %
Humidity
0
UV index

Pollen (today)

Hazel None
Alder None
Birch None
Oak None
Grass None
Mugwort Moderate
Ragweed High
06:46 / 19:02
Sunrise / Sunset
16:21 / 00:46
Moonrise / Moonset
Waxing Moon (73 %)
Moon phase

Updated: Sep 21, 2026, 4:00 CEST Sep 20, 2026, 20:00 MDT

Today's Summary

Right now Boulder has moderate rain at times weather. The thermometer currently shows 15.1°C. Take an umbrella with you today – you'll probably need it. During the day temperatures will range between 10°C and 22.1°C.

Hourly forecast – Boulder, today

Sep 20, 20:00
12 °C
Patchy rain possible
Boulder Sep 20, 20:00: Patchy rain possible, 12 °C
Sep 20, 21:00
12 °C
Moderate rain at times
Boulder Sep 20, 21:00: Moderate rain at times, 12 °C
Sep 20, 22:00
11 °C
Patchy rain possible
Boulder Sep 20, 22:00: Patchy rain possible, 11 °C
Sep 20, 23:00
11 °C
Clear
Boulder Sep 20, 23:00: Clear, 11 °C
Sep 21, 00:00
10 °C
Clear
Boulder Sep 21, 00:00: Clear, 10 °C
Sep 21, 01:00
9 °C
Partly cloudy
Boulder Sep 21, 01:00: Partly cloudy, 9 °C
Sep 21, 02:00
9 °C
Cloudy
Boulder Sep 21, 02:00: Cloudy, 9 °C
Sep 21, 03:00
9 °C
Overcast
Boulder Sep 21, 03:00: Overcast, 9 °C
Sep 21, 04:00
9 °C
Cloudy
Boulder Sep 21, 04:00: Cloudy, 9 °C
Sep 21, 05:00
9 °C
Overcast
Boulder Sep 21, 05:00: Overcast, 9 °C
Sep 21, 06:00
11 °C
Sunny
Boulder Sep 21, 06:00: Sunny, 11 °C
Sep 21, 07:00
14 °C
Sunny
Boulder Sep 21, 07:00: Sunny, 14 °C
Sep 21, 08:00
15 °C
Sunny
Boulder Sep 21, 08:00: Sunny, 15 °C
Sep 21, 09:00
17 °C
Sunny
Boulder Sep 21, 09:00: Sunny, 17 °C
Sep 21, 10:00
18 °C
Sunny
Boulder Sep 21, 10:00: Sunny, 18 °C
Sep 21, 11:00
20 °C
Sunny
Boulder Sep 21, 11:00: Sunny, 20 °C
Sep 21, 12:00
21 °C
Sunny
Boulder Sep 21, 12:00: Sunny, 21 °C
Sep 21, 13:00
22 °C
Sunny
Boulder Sep 21, 13:00: Sunny, 22 °C
Sep 21, 14:00
22 °C
Sunny
Boulder Sep 21, 14:00: Sunny, 22 °C
Sep 21, 15:00
22 °C
Sunny
Boulder Sep 21, 15:00: Sunny, 22 °C
Sep 21, 16:00
21 °C
Sunny
Boulder Sep 21, 16:00: Sunny, 21 °C
Sep 21, 17:00
15 °C
Clear
Boulder Sep 21, 17:00: Clear, 15 °C
Sep 21, 18:00
15 °C
Clear
Boulder Sep 21, 18:00: Clear, 15 °C
Sep 21, 19:00
14 °C
Clear
Boulder Sep 21, 19:00: Clear, 14 °C
Time
20
21
22
23
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
Boulder Sep 20, 20:00: Patchy rain possible
Boulder Sep 20, 21:00: Moderate rain at times
Boulder Sep 20, 22:00: Patchy rain possible
Boulder Sep 20, 23:00: Clear
Boulder Sep 21, 00:00: Clear
Boulder Sep 21, 01:00: Partly cloudy
Boulder Sep 21, 02:00: Cloudy
Boulder Sep 21, 03:00: Overcast
Boulder Sep 21, 04:00: Cloudy
Boulder Sep 21, 05:00: Overcast
Boulder Sep 21, 06:00: Sunny
Boulder Sep 21, 07:00: Sunny
Boulder Sep 21, 08:00: Sunny
Boulder Sep 21, 09:00: Sunny
Boulder Sep 21, 10:00: Sunny
Boulder Sep 21, 11:00: Sunny
Boulder Sep 21, 12:00: Sunny
Boulder Sep 21, 13:00: Sunny
Boulder Sep 21, 14:00: Sunny
Boulder Sep 21, 15:00: Sunny
Boulder Sep 21, 16:00: Sunny
Boulder Sep 21, 17:00: Clear
Boulder Sep 21, 18:00: Clear
Boulder Sep 21, 19:00: Clear
Temperature (°C)
Chance of rain (%)
53
48
48
7
7
10
13
16
10
13
3
2
2
2
2
2
1
1
0
0
1
2
2
2
Precipitation
0.8 mm
0.7 mm
0.5 mm
Wind (mph)
W
5
SW
6
WSW
6
WSW
6
WSW
5
W
5
W
5
WSW
5
W
5
W
6
W
4
E
2
E
5
ESE
7
E
8
ESE
8
ESE
9
ESE
8
ESE
7
E
8
E
7
E
3
WNW
3
WNW
8
Pressure (hPa)
1020
1021
1021
1021
1020
1020
1020
1021
1021
1021
1021
1020
1020
1019
1018
1016
1015
1014
1013
1012
1013
1014
1015
1016
Humidity (%)
75 %
72 %
73 %
73 %
73 %
71 %
67 %
64 %
62 %
61 %
55 %
46 %
48 %
47 %
43 %
38 %
34 %
30 %
28 %
29 %
33 %
48 %
50 %
51 %
Cloud cover (%)
75 %
82 %
87 %
5 %
4 %
41 %
76 %
97 %
67 %
88 %
5 %
1 %
0 %
6 %
23 %
18 %
2 %
0 %
0 %
0 %
0 %
1 %
4 %
5 %

14-day weather forecast – Boulder

14-day trend for Boulder: Temperatures stay fairly stable over the period with no big swings. Lows can drop to around 6.1°C at night, with daytime highs up to 29.2°C.

Date
Sep 20
Sep 21
Sep 22
Sep 23
Sep 24
Sep 25
Sep 26
Sep 27
Sep 28
Sep 29
Sep 30
Oct 1
Oct 2
Oct 3
Boulder September 20, 2026: Patchy rain possible
Boulder September 21, 2026: Sunny
Boulder September 22, 2026: Overcast
Boulder September 23, 2026: Overcast
Boulder September 24, 2026: Overcast
Boulder September 25, 2026: Sunny
Boulder September 26, 2026: Overcast
Boulder September 27, 2026: Sunny
Boulder September 28, 2026: Overcast
Boulder September 29, 2026: Sunny
Boulder September 30, 2026: Sunny
Boulder October 1, 2026: Overcast
Boulder October 2, 2026: Overcast
Boulder October 3, 2026: Patchy rain possible
Temperature (°C)
Chance of rain (%)
61
36
36
11
36
7
5
2
6
2
1
4
39
81
Precipitation
4.6 mm
0.5 mm
0.3 mm
0 mm
0.3 mm
0 mm
0.9 mm
2.9 mm
Wind max (mph)
13
9
10
12
11
13
13
10
15
11
11
10
18
6
Date Weather Min °C Max °C Sunrise Sunset Moonrise Moonset Moon phase
September 20, 2026 Boulder September 20, 2026: Patchy rain possible Patchy rain possible 10 °C 22 °C 06:46 19:02 16:21 00:46 Waxing Moon (73 %)
September 21, 2026 Boulder September 21, 2026: Sunny Sunny 9 °C 22 °C 06:47 19:00 16:52 01:47 Waxing Moon (82 %)
September 22, 2026 Boulder September 22, 2026: Overcast Overcast 11 °C 26 °C 06:48 18:58 17:18 02:50 Waxing Moon (89 %)
September 23, 2026 Boulder September 23, 2026: Overcast Overcast 15 °C 23 °C 06:49 18:57 17:40 03:51 Waxing Moon (95 %)
September 24, 2026 Boulder September 24, 2026: Overcast Overcast 15 °C 24 °C 06:50 18:55 18:01 04:52 Full Moon (99 %)
September 25, 2026 Boulder September 25, 2026: Sunny Sunny 12 °C 26 °C 06:51 18:53 18:22 05:53 Full Moon (100 %)
September 26, 2026 Boulder September 26, 2026: Overcast Overcast 15 °C 26 °C 06:52 18:52 18:42 06:55 Full Moon (99 %)
September 27, 2026 Boulder September 27, 2026: Sunny Sunny 14 °C 26 °C 06:53 18:50 19:05 07:58 Waning Moon (96 %)
September 28, 2026 Boulder September 28, 2026: Overcast Overcast 15 °C 25 °C 06:54 18:48 19:31 09:04 Waning Moon (91 %)
September 29, 2026 Boulder September 29, 2026: Sunny Sunny 13 °C 28 °C 06:55 18:47 20:02 10:12 Waning Moon (84 %)
September 30, 2026 Boulder September 30, 2026: Sunny Sunny 15 °C 29 °C 06:56 18:45 20:40 11:21 Waning Moon (75 %)
October 1, 2026 Boulder October 1, 2026: Overcast Overcast 14 °C 27 °C 06:57 18:43 21:28 12:30 Last Quarter (66 %)
October 2, 2026 Boulder October 2, 2026: Overcast Overcast 11 °C 28 °C 06:58 18:42 22:26 13:35 Last Quarter (55 %)
October 3, 2026 Boulder October 3, 2026: Patchy rain possible Patchy rain possible 6 °C 10 °C 06:59 18:40 23:35 14:31 Last Quarter (45 %)