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Weather in Boulder, United States 🇺🇸

Current Weather in Boulder

Heat Advisory issued August 7 at 4:01AM MDT until August 8 at 8:00PM MDT by NWS Denver CO
Partly Cloudy
34°C
Feels like 29°C. Partly Cloudy.
🌬️ 10 km/h E
💧 7% Humidity
🧭 1012 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 0.9
🌡️ Dew Point: -6°C
🌅 Sunrise: 06:05 AM
🌇 Sunset: 08:08 PM
Map Overlays:

As of now, Boulder is 34°C and partly cloudy, feeling like 29°C. The air is at 7% humidity and winds are about 10 km/h, and the UV index is 1 (low). Looking ahead, Boulder should sit between roughly 16°C and 37°C over the coming days. ⚠️ Heat Advisory issued August 7 at 4:01AM MDT until August 8 at 8:00PM MDT by NWS Denver CO

Hourly Forecast for Boulder

20:00
Sunny
24°
1%
21:00
Clear
23°
0%
22:00
Clear
20°
0%
23:00
Clear
19°
0%
00:00
Clear
19°
0%
01:00
Clear
19°
0%
02:00
Clear
18°
0%
03:00
Clear
18°
0%
04:00
Clear
18°
0%
05:00
Clear
18°
0%
06:00
Clear
18°
0%
07:00
Sunny
20°
0%
08:00
Sunny
26°
0%
09:00
Sunny
33°
0%
10:00
Sunny
35°
0%
11:00
Sunny
36°
0%
12:00
Sunny
36°
1%
13:00
Sunny
37°
1%
14:00
Sunny
37°
1%
15:00
Sunny
36°
1%
16:00
Sunny
35°
0%
17:00
Sunny
35°
0%
18:00
Sunny
35°
1%
19:00
Sunny
33°
1%

14-Day Forecast for Boulder

Fri, Aug 07
Sunny Sunny
35° / 16°
Sat, Aug 08
Sunny Sunny
37° / 18°
Sun, Aug 09
Sunny Sunny
36° / 19°
Mon, Aug 10
Sunny Sunny
35° / 16°
Tue, Aug 11
Sunny Sunny
35° / 17°
Wed, Aug 12
Sunny Sunny
34° / 18°
Thu, Aug 13
Sunny Sunny
33° / 15°
Fri, Aug 14
Sunny Sunny
29° / 15°
Sat, Aug 15
Patchy rain nearby Patchy rain nearby
28° / 13°
Sun, Aug 16
Partly Cloudy Partly Cloudy
25° / 14°
Mon, Aug 17
Sunny Sunny
30° / 12°
Tue, Aug 18
Sunny Sunny
30° / 16°
Wed, Aug 19
Patchy rain nearby Patchy rain nearby
30° / 13°
Thu, Aug 20
Patchy rain nearby Patchy rain nearby
29° / 16°

Additional Forecasts for Boulder

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 124.0 μg/m³
O₃ (Ozone) 158.0 μg/m³
NO₂ (Nitrogen Dioxide) 2.1 μg/m³
SO₂ (Sulphur Dioxide) 1.2 μg/m³
PM2.5 (Fine particles) 9.8 μg/m³
PM10 (Coarse particles) 12.2 μg/m³

Historical Weather

Weather Forecasts for Other Cities in United States

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Weather in United States ›

Best Time to Be Outside in Boulder Tomorrow

There is no good daylight window left in Boulder today. Tomorrow, the most comfortable window looks like 07:00 to 10:00, when it is around 26°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Boulder

What is the temperature in Boulder right now?

The current temperature in Boulder is 34°C (93°F), partly cloudy (feels like 29°C).

What's the weather like in Boulder right now?

Conditions in Boulder right now: Partly Cloudy, humidity 7%, wind 10 km/h E.

What is today's forecast for Boulder?

Today in Boulder: high 35°C, low 16°C, sunny. Chance of rain: 0%.

What is the 7-day weather forecast for Boulder?

Daily highs and lows for Boulder:

  • 2026-08-07: 35°C / 16°C
  • 2026-08-08: 37°C / 18°C
  • 2026-08-09: 36°C / 19°C
  • 2026-08-10: 35°C / 16°C
  • 2026-08-11: 35°C / 17°C
  • 2026-08-12: 34°C / 18°C
  • 2026-08-13: 33°C / 15°C
Is it going to rain in Boulder today?

There is a 0% chance of rain in Boulder today.

What is the wind speed in Boulder right now?

Wind in Boulder is currently 10 km/h (6 mph) from the E.

What is the UV index in Boulder right now?

The UV index in Boulder is currently 0.9 (low). Sun protection is recommended when the index is 3 or higher.

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