Weather Forecast for Boulder
Colorado, United States of America
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Current Weather - Boulder: 22°C
Current Weather - Boulder: 22°C
Colorado, United States of America
Clear
Feels like 23°C
Wind
13 km/h WSW
Humidity
17%
Pressure
1015 mb
UV Index
0
Visibility
16 km
Sunny
Saturday, June 13, 2026
High
26°C
Low
6°C
Rain Chance
17%
Hourly Forecast
15°C
17°C
20°C
22°C
24°C
25°C
26°C
25°C
24°C
22°C
20°C
18°C
13°C
10°C
8°C
7°C
Day Statistics
Maximum Wind
27 km/h
Humidity
35%
Precipitation
0 mm
UV Index
11
Visibility
10 km
Rain Chance
17%
Snow Chance
0%
Sun & Moon
Sunrise
05:31 AM
Sunset
08:30 PM
Moonrise
03:33 AM
Moonset
07:14 PM
Moon Phase
New Moon
Moon Illumination
1%
Air Quality
PM2.5
5.8
μg/m³
PM10
7.5
μg/m³
NO₂
5.3
μg/m³
O₃
81.3
μg/m³
SO₂
0.5
μg/m³
CO
122.3
μg/m³
Patchy rain nearby
Sunday, June 14, 2026
High
23°C
Low
6°C
Rain Chance
18%
Hourly Forecast
9°C
10°C
10°C
10°C
10°C
10°C
10°C
10°C
12°C
14°C
16°C
18°C
20°C
21°C
22°C
22°C
22°C
20°C
18°C
17°C
16°C
15°C
15°C
14°C
Day Statistics
Maximum Wind
31 km/h
Humidity
55%
Precipitation
0 mm
UV Index
11
Visibility
10 km
Rain Chance
18%
Snow Chance
0%
Sun & Moon
Sunrise
05:31 AM
Sunset
08:31 PM
Moonrise
04:21 AM
Moonset
08:27 PM
Moon Phase
New Moon
Moon Illumination
0%
Air Quality
PM2.5
7.5
μg/m³
PM10
8.2
μg/m³
NO₂
4.9
μg/m³
O₃
75
μg/m³
SO₂
0.6
μg/m³
CO
145.6
μg/m³
Sunny
Monday, June 15, 2026
High
26°C
Low
6°C
Rain Chance
2%
Hourly Forecast
11°C
9°C
8°C
7°C
7°C
7°C
10°C
12°C
14°C
16°C
18°C
20°C
22°C
23°C
25°C
26°C
26°C
26°C
25°C
21°C
17°C
15°C
14°C
13°C
Day Statistics
Maximum Wind
19 km/h
Humidity
47%
Precipitation
0 mm
UV Index
10
Visibility
10 km
Rain Chance
2%
Snow Chance
0%
Sun & Moon
Sunrise
05:31 AM
Sunset
08:31 PM
Moonrise
05:21 AM
Moonset
09:32 PM
Moon Phase
New Moon
Moon Illumination
2%
Air Quality
PM2.5
7.7
μg/m³
PM10
8.8
μg/m³
NO₂
6.7
μg/m³
O₃
78.6
μg/m³
SO₂
0.6
μg/m³
CO
133.9
μg/m³
Sunny
Tuesday, June 16, 2026
High
32°C
Low
11°C
Rain Chance
1%
Hourly Forecast
13°C
12°C
12°C
11°C
11°C
11°C
12°C
17°C
21°C
24°C
26°C
28°C
30°C
31°C
32°C
32°C
32°C
32°C
31°C
27°C
24°C
23°C
21°C
19°C
Day Statistics
Maximum Wind
34 km/h
Humidity
23%
Precipitation
0 mm
UV Index
11
Visibility
10 km
Rain Chance
1%
Snow Chance
0%
Sun & Moon
Sunrise
05:31 AM
Sunset
08:31 PM
Moonrise
06:33 AM
Moonset
10:25 PM
Moon Phase
Waxing Crescent
Moon Illumination
6%
Air Quality
PM2.5
5
μg/m³
PM10
6.1
μg/m³
NO₂
7.1
μg/m³
O₃
79.3
μg/m³
SO₂
0.5
μg/m³
CO
140.2
μg/m³
Sunny
Wednesday, June 17, 2026
High
34°C
Low
16°C
Rain Chance
0%
Hourly Forecast
19°C
18°C
17°C
17°C
16°C
16°C
19°C
22°C
25°C
27°C
29°C
31°C
32°C
33°C
33°C
34°C
33°C
33°C
31°C
27°C
23°C
20°C
17°C
13°C
Day Statistics
Maximum Wind
34 km/h
Humidity
24%
Precipitation
0 mm
UV Index
0
Visibility
10 km
Rain Chance
0%
Snow Chance
0%
Sun & Moon
Sunrise
05:31 AM
Sunset
08:32 PM
Moonrise
07:52 AM
Moonset
11:07 PM
Moon Phase
Waxing Crescent
Moon Illumination
11%
Air Quality
PM2.5
3.7
μg/m³
PM10
4.5
μg/m³
NO₂
10
μg/m³
O₃
49.3
μg/m³
SO₂
0.4
μg/m³
CO
155
μg/m³
Sunny
Thursday, June 18, 2026
High
30°C
Low
6°C
Rain Chance
1%
Hourly Forecast
11°C
10°C
9°C
8°C
7°C
7°C
8°C
11°C
14°C
16°C
19°C
21°C
23°C
25°C
27°C
28°C
29°C
29°C
27°C
24°C
21°C
19°C
17°C
16°C
Day Statistics
Maximum Wind
20 km/h
Humidity
39%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
1%
Snow Chance
0%
Sun & Moon
Sunrise
05:31 AM
Sunset
08:32 PM
Moonrise
09:12 AM
Moonset
11:40 PM
Moon Phase
Waxing Crescent
Moon Illumination
19%
Partly Cloudy
Friday, June 19, 2026
High
32°C
Low
13°C
Rain Chance
3%
Hourly Forecast
15°C
14°C
13°C
13°C
13°C
13°C
15°C
18°C
22°C
25°C
27°C
30°C
30°C
30°C
30°C
27°C
24°C
20°C
18°C
18°C
17°C
17°C
17°C
17°C
Day Statistics
Maximum Wind
21 km/h
Humidity
35%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
3%
Snow Chance
0%
Sun & Moon
Sunrise
05:32 AM
Sunset
08:32 PM
Moonrise
10:29 AM
Moonset
Does not set today
Moon Phase
Waxing Crescent
Moon Illumination
28%
Weather Alerts
Air Quality Alert issued June 12 at 4:10PM MDT by NWS Denver CO
The Colorado Department of Public Health and Environment has issued the following... WHAT...Ozone Action Day Alert. WHERE...Douglas, Jefferson, Denver, western Arapahoe, western Adams, Broomfield, Boulder, Larimer, and Weld Counties WHEN...400 PM Friday June 12 to 1200 AM Saturday June 13 IMPACTS...Ozone Action Day Alert is now in effect for the Front Range Urban Corridor. Hot, sunny, and stagnant conditions on Friday will allow ozone concentrations to reach the Unhealthy for Sensitive Groups level. On Saturday, breezy winds are expected, and ozone will reach the Moderate level. For Colorado air quality conditions, forecasts, and advisories, visit: https://www.colorado.gov/airquality/colorado_summary.aspx If possible, please help us reduce ozone pollution by limiting driving gas and diesel-powered vehicles until midnight, Friday night, June 12, 2026. Colorado is also addressing ozone pollution through state policies. For more information about health impacts and how ozone pollution forms in Colorado, visit: https://cdphe.colorado.gov/ozone- pollution-and-your-health HEALTH INFORMATION...Increasing likelihood of respiratory symptoms and breathing discomfort in active children and adults and people with lung disease, such as asthma. Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy outdoor exertion.
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