Weather Forecast for Boulder
Colorado, United States of America
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Current Weather - Boulder: 5°C
Current Weather - Boulder: 5°C
Colorado, United States of America
Overcast
Feels like 2°C
Wind
4 km/h NW
Humidity
54%
Pressure
1014 mb
UV Index
0
Visibility
10 km
Overcast
Wednesday, November 04, 2026
High
12°C
Low
-0°C
Rain Chance
10%
Hourly Forecast
11°C
5°C
4°C
4°C
4°C
3°C
3°C
2°C
Day Statistics
Maximum Wind
10 km/h
Humidity
54%
Precipitation
0 mm
UV Index
3
Visibility
10 km
Rain Chance
10%
Snow Chance
0%
Sun & Moon
Sunrise
06:33 AM
Sunset
04:55 PM
Moonrise
01:23 AM
Moonset
02:24 PM
Moon Phase
Waning Crescent
Moon Illumination
20%
Air Quality
PM2.5
10.1
μg/m³
PM10
10.3
μg/m³
NO₂
27.3
μg/m³
O₃
33.5
μg/m³
SO₂
1.2
μg/m³
CO
171.5
μg/m³
Sunny
Thursday, November 05, 2026
High
14°C
Low
-0°C
Rain Chance
3%
Hourly Forecast
2°C
2°C
1°C
2°C
1°C
-0°C
1°C
1°C
4°C
9°C
11°C
12°C
12°C
13°C
14°C
14°C
13°C
6°C
4°C
4°C
2°C
4°C
4°C
1°C
Day Statistics
Maximum Wind
11 km/h
Humidity
45%
Precipitation
0 mm
UV Index
3
Visibility
10 km
Rain Chance
3%
Snow Chance
0%
Sun & Moon
Sunrise
06:34 AM
Sunset
04:54 PM
Moonrise
02:35 AM
Moonset
02:49 PM
Moon Phase
Waning Crescent
Moon Illumination
13%
Air Quality
PM2.5
7.4
μg/m³
PM10
7.8
μg/m³
NO₂
21.8
μg/m³
O₃
44.7
μg/m³
SO₂
1.2
μg/m³
CO
174.7
μg/m³
Overcast
Friday, November 06, 2026
High
12°C
Low
0°C
Rain Chance
60%
Hourly Forecast
4°C
3°C
2°C
3°C
3°C
2°C
3°C
4°C
7°C
11°C
11°C
12°C
12°C
11°C
11°C
7°C
7°C
8°C
5°C
6°C
3°C
1°C
1°C
0°C
Day Statistics
Maximum Wind
12 km/h
Humidity
56%
Precipitation
3 mm
UV Index
3
Visibility
9 km
Rain Chance
60%
Snow Chance
0%
Sun & Moon
Sunrise
06:35 AM
Sunset
04:53 PM
Moonrise
03:47 AM
Moonset
03:14 PM
Moon Phase
Waning Crescent
Moon Illumination
6%
Air Quality
PM2.5
11.1
μg/m³
PM10
11.7
μg/m³
NO₂
30.4
μg/m³
O₃
31.7
μg/m³
SO₂
1.4
μg/m³
CO
155.2
μg/m³
Sunny
Saturday, November 07, 2026
High
14°C
Low
-1°C
Rain Chance
2%
Hourly Forecast
-1°C
-1°C
-0°C
-0°C
-0°C
-1°C
-1°C
-0°C
5°C
8°C
10°C
13°C
11°C
11°C
14°C
11°C
10°C
7°C
4°C
3°C
2°C
2°C
2°C
2°C
Day Statistics
Maximum Wind
14 km/h
Humidity
51%
Precipitation
0 mm
UV Index
3
Visibility
10 km
Rain Chance
2%
Snow Chance
0%
Sun & Moon
Sunrise
06:37 AM
Sunset
04:52 PM
Moonrise
04:59 AM
Moonset
03:41 PM
Moon Phase
New Moon
Moon Illumination
2%
Air Quality
PM2.5
11
μg/m³
PM10
11.5
μg/m³
NO₂
23.9
μg/m³
O₃
44.7
μg/m³
SO₂
1.3
μg/m³
CO
179.9
μg/m³
Sunny
Sunday, November 08, 2026
High
16°C
Low
-1°C
Rain Chance
1%
Hourly Forecast
2°C
1°C
0°C
1°C
1°C
-1°C
1°C
2°C
4°C
11°C
13°C
14°C
15°C
15°C
16°C
15°C
12°C
7°C
6°C
6°C
3°C
6°C
6°C
2°C
Day Statistics
Maximum Wind
14 km/h
Humidity
36%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
1%
Snow Chance
0%
Sun & Moon
Sunrise
06:38 AM
Sunset
04:51 PM
Moonrise
06:11 AM
Moonset
04:12 PM
Moon Phase
New Moon
Moon Illumination
0%
Air Quality
PM2.5
13.6
μg/m³
PM10
13.9
μg/m³
NO₂
29.8
μg/m³
O₃
18.8
μg/m³
SO₂
0.8
μg/m³
CO
279.2
μg/m³
Sunny
Monday, November 09, 2026
High
18°C
Low
2°C
Rain Chance
2%
Hourly Forecast
2°C
2°C
2°C
2°C
2°C
2°C
3°C
5°C
7°C
11°C
14°C
18°C
18°C
18°C
18°C
15°C
12°C
9°C
8°C
7°C
6°C
5°C
5°C
4°C
Day Statistics
Maximum Wind
9 km/h
Humidity
36%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
2%
Snow Chance
0%
Sun & Moon
Sunrise
06:39 AM
Sunset
04:50 PM
Moonrise
07:23 AM
Moonset
04:49 PM
Moon Phase
New Moon
Moon Illumination
0%
Partly Cloudy
Tuesday, November 10, 2026
High
11°C
Low
1°C
Rain Chance
5%
Hourly Forecast
3°C
3°C
2°C
2°C
2°C
1°C
2°C
4°C
5°C
7°C
9°C
11°C
10°C
10°C
9°C
8°C
7°C
6°C
5°C
5°C
4°C
4°C
3°C
3°C
Day Statistics
Maximum Wind
7 km/h
Humidity
50%
Precipitation
0 mm
UV Index
4
Visibility
10 km
Rain Chance
5%
Snow Chance
0%
Sun & Moon
Sunrise
06:40 AM
Sunset
04:49 PM
Moonrise
08:32 AM
Moonset
05:32 PM
Moon Phase
New Moon
Moon Illumination
3%
Solar Radiation Data
Shortwave Radiation
56.34
Diffuse Radiation
54.65
DNI
10.87
GTI
49.57
Weather Alerts
Winter Weather Advisory issued November 3 at 10:44PM MST until November 5 at 2:00AM MST by NWS Denver CO
* WHAT...Snow expected. Total snow accumulations between 3 and 10 inches with localized higher amounts possible for the Mosquito Range. * WHERE...The Mountains of Summit County, the Mosquito Range, and the Indian Peaks, and South Park. * WHEN...From 2 PM Wednesday to 2 AM MST Thursday. * IMPACTS...Travel could be difficult. Roads will become slippery in spots, including for the US 285 corridor. The hazardous conditions will impact the Wednesday evening commute.
Winter Weather Advisory issued November 4 at 4:53AM MST until November 5 at 2:00AM MST by NWS Denver CO
* WHAT...Snow expected. Total snow accumulations between 3 and 10 inches with localized higher amounts possible for the Mosquito Range. * WHERE...The Mountains of Summit County, the Mosquito Range, and the Indian Peaks, and South Park. * WHEN...From 2 PM this afternoon to 2 AM MST Thursday. * IMPACTS...Travel could be difficult. Roads will become slippery in spots, including for the US 285 corridor. The hazardous conditions will impact the Wednesday evening commute.
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