Boulder County Weather Today — Colorado, United States
Current temperature, rain chance, humidity, wind and air quality in Boulder County, plus an hourly and 3-day forecast. Updated through the day.
05:24
Sat, 19 Sep 2026
📍 Colorado, United States
Boulder County??
21
°C
Mist
Feels 25°C · 70°F
💧 96% Humidity
💨 ↑ 3.6 km/h NNE
👁 2 km Visibility
🌧 0 mm Precip
☁ 5% Cloud
☀️ UV Low
🌿 AQI Good
☀️ UV Index
0
Low
🔵 Pressure
1017
hPa · 30.04 in
💨 Wind
3.6
km/h · Gust 20.5 km/h
↑ NNE
💧 Humidity
96%
Dew point 20.6°C
👁 Visibility
2
km · 1 miles
🌡 Heat Index
24.2°
Wind chill 21.3°C
🌿 Air Quality
Good
US EPA Index: 1
🌅
Sunrise
07:16 AM
🌇
Sunset
07:32 PM
📅 3-Day Forecast
Saturday
19 Sep 2026
Sunny
29°
/
20°
💧79%
🌧11.97mm
💨8
☀️UV 7.9
Sunday
20 Sep 2026
Patchy rain nearby
28°
/
18°
💧82%
🌧9.01mm
💨7
☀️UV 7.5
Monday
21 Sep 2026
Fog
25°
/
19°
💧85%
🌧5.22mm
💨8
☀️UV 7.2
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