Weather Forecast for Boulder
Colorado, United States of America
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Current Weather - Boulder: 28°C
Current Weather - Boulder: 28°C
Colorado, United States of America
Partly cloudy
Feels like 29°C
Wind
4 km/h N
Humidity
42%
Pressure
1021 mb
UV Index
8
Visibility
16 km
Patchy rain nearby
Thursday, July 23, 2026
High
28°C
Low
16°C
Rain Chance
57%
Hourly Forecast
18°C
Day Statistics
Maximum Wind
11 km/h
Humidity
61%
Precipitation
1 mm
UV Index
12
Visibility
10 km
Rain Chance
57%
Snow Chance
0%
Sun & Moon
Sunrise
05:51 AM
Sunset
08:23 PM
Moonrise
04:22 PM
Moonset
12:48 AM
Moon Phase
Waxing Gibbous
Moon Illumination
74%
Air Quality
PM2.5
7.4
μg/m³
PM10
8.5
μg/m³
NO₂
7.9
μg/m³
O₃
86.3
μg/m³
SO₂
0.5
μg/m³
CO
135.7
μg/m³
Sunny
Friday, July 24, 2026
High
34°C
Low
17°C
Rain Chance
2%
Hourly Forecast
17°C
17°C
17°C
17°C
17°C
17°C
17°C
18°C
25°C
28°C
30°C
31°C
32°C
33°C
34°C
34°C
34°C
32°C
31°C
25°C
21°C
21°C
22°C
23°C
Day Statistics
Maximum Wind
19 km/h
Humidity
41%
Precipitation
0 mm
UV Index
11
Visibility
10 km
Rain Chance
2%
Snow Chance
0%
Sun & Moon
Sunrise
05:52 AM
Sunset
08:22 PM
Moonrise
05:24 PM
Moonset
01:26 AM
Moon Phase
Waxing Gibbous
Moon Illumination
82%
Air Quality
PM2.5
5.4
μg/m³
PM10
5.7
μg/m³
NO₂
7.3
μg/m³
O₃
83.8
μg/m³
SO₂
0.5
μg/m³
CO
129.6
μg/m³
Sunny
Saturday, July 25, 2026
High
36°C
Low
19°C
Rain Chance
57%
Hourly Forecast
21°C
21°C
20°C
20°C
20°C
20°C
19°C
21°C
28°C
31°C
33°C
34°C
35°C
36°C
36°C
36°C
33°C
30°C
28°C
30°C
25°C
23°C
22°C
21°C
Day Statistics
Maximum Wind
29 km/h
Humidity
32%
Precipitation
1 mm
UV Index
9
Visibility
10 km
Rain Chance
57%
Snow Chance
0%
Sun & Moon
Sunrise
05:53 AM
Sunset
08:22 PM
Moonrise
06:19 PM
Moonset
02:11 AM
Moon Phase
Waxing Gibbous
Moon Illumination
90%
Air Quality
PM2.5
5.3
μg/m³
PM10
5.5
μg/m³
NO₂
7
μg/m³
O₃
88.9
μg/m³
SO₂
0.4
μg/m³
CO
129.1
μg/m³
Sunny
Sunday, July 26, 2026
High
38°C
Low
20°C
Rain Chance
36%
Hourly Forecast
21°C
21°C
21°C
20°C
20°C
20°C
20°C
22°C
29°C
33°C
35°C
36°C
37°C
38°C
37°C
35°C
36°C
35°C
34°C
32°C
26°C
24°C
22°C
22°C
Day Statistics
Maximum Wind
30 km/h
Humidity
30%
Precipitation
0 mm
UV Index
9
Visibility
10 km
Rain Chance
36%
Snow Chance
0%
Sun & Moon
Sunrise
05:54 AM
Sunset
08:21 PM
Moonrise
07:06 PM
Moonset
03:04 AM
Moon Phase
Waxing Gibbous
Moon Illumination
95%
Air Quality
PM2.5
4.7
μg/m³
PM10
5.1
μg/m³
NO₂
6.8
μg/m³
O₃
82
μg/m³
SO₂
0.3
μg/m³
CO
128.2
μg/m³
Patchy rain nearby
Monday, July 27, 2026
High
35°C
Low
18°C
Rain Chance
57%
Hourly Forecast
22°C
21°C
21°C
21°C
22°C
21°C
21°C
22°C
28°C
31°C
33°C
33°C
34°C
35°C
35°C
23°C
25°C
25°C
22°C
21°C
19°C
19°C
18°C
18°C
Day Statistics
Maximum Wind
32 km/h
Humidity
45%
Precipitation
5 mm
UV Index
8
Visibility
10 km
Rain Chance
57%
Snow Chance
0%
Sun & Moon
Sunrise
05:55 AM
Sunset
08:20 PM
Moonrise
07:45 PM
Moonset
04:02 AM
Moon Phase
Full Moon
Moon Illumination
99%
Air Quality
PM2.5
4.3
μg/m³
PM10
4.5
μg/m³
NO₂
10.9
μg/m³
O₃
54
μg/m³
SO₂
0.3
μg/m³
CO
161.6
μg/m³
Sunny
Tuesday, July 28, 2026
High
34°C
Low
17°C
Rain Chance
57%
Hourly Forecast
18°C
18°C
18°C
18°C
17°C
17°C
17°C
20°C
23°C
26°C
28°C
30°C
32°C
32°C
33°C
34°C
33°C
32°C
31°C
27°C
22°C
18°C
18°C
18°C
Day Statistics
Maximum Wind
11 km/h
Humidity
48%
Precipitation
6 mm
UV Index
8
Visibility
10 km
Rain Chance
57%
Snow Chance
0%
Sun & Moon
Sunrise
05:55 AM
Sunset
08:19 PM
Moonrise
08:18 PM
Moonset
05:03 AM
Moon Phase
Full Moon
Moon Illumination
100%
Sunny
Wednesday, July 29, 2026
High
34°C
Low
15°C
Rain Chance
4%
Hourly Forecast
18°C
18°C
17°C
17°C
16°C
16°C
15°C
19°C
22°C
26°C
27°C
29°C
30°C
32°C
33°C
34°C
29°C
24°C
19°C
20°C
20°C
21°C
21°C
21°C
Day Statistics
Maximum Wind
21 km/h
Humidity
52%
Precipitation
0 mm
UV Index
8
Visibility
10 km
Rain Chance
4%
Snow Chance
0%
Sun & Moon
Sunrise
05:56 AM
Sunset
08:18 PM
Moonrise
08:45 PM
Moonset
06:05 AM
Moon Phase
Full Moon
Moon Illumination
99%
Solar Radiation Data
Shortwave Radiation
558.22
Diffuse Radiation
113.15
DNI
0
GTI
0
Weather Alerts
Flood Advisory issued July 23 at 12:50PM MDT until July 23 at 2:45PM MDT by NWS Denver CO
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...West Central Jefferson County in central Colorado... * WHEN...Until 245 PM MDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 1250 PM MDT, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 0.5 and 1 inch of rain has fallen. - This includes the following streams and drainages... Bergen Creek, Troublesome Creek, Bear Creek, North Turkey Creek and Cub Creek. - Some locations that will experience flooding include... Evergreen, Kittredge, Wah Keeney Park and Genesee.
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
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