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Today weather in Boulder County

Tuesday, September 16th, 2025
today weather
23°
Patchy rain possible
Boulder County will experience a pleasantly warm today, reaching temperatures of up to 23 °F and cooling to about 10 °F in the evening. Gentle breezes are expected across Boulder County Today, with speeds reaching around 14 km/h. Rain is highly likely at 63%, but with light accumulations around 2.16 mm.
Wednesday, Sept. 17
23° / 11°
Temp
63%
Rain
14 km/h
Wind
53%
Humidity
Boulder County Weather Pages
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Boulder County hourly forecast for today

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12:00 AM01:00 AM02:00 AM03:00 AM04:00 AM05:00 AM06:00 AM06:43 AM07:00 AM08:00 AM09:00 AM10:00 AM11:00 AM12:00 PM01:00 PM02:00 PM03:00 PM04:00 PM05:00 PM06:00 PM07:00 PM07:08 PM08:00 PM09:00 PM10:00 PM11:00 PM
weatherPartly cloudyCloudySunnyPartly cloudyPartly cloudyPartly cloudySunnysunrisePartly cloudyOvercastCloudyCloudyCloudyCloudyPartly cloudySunnyThundery outbreaks possibleModerate or heavy rain with thunderOvercastThundery outbreaks possibleThundery outbreaks possiblesunsetThundery outbreaks possibleLight rain showerThundery outbreaks possibleMistNext
temperatures18.6°18.3°15.4°14.1°13.5°13.3°13°Sunrise13°13.7°14.7°17.4°19.5°21°22.1°22.1°21°21.2°19.1°17.1°14.9°Sunset13.2°11.9°11.2°10.7°
wind speed11 km/h12 km/h10 km/h13 km/h13 km/h11 km/h9 km/h9 km/h8 km/h2 km/h7 km/h10 km/h13 km/h12 km/h12 km/h12 km/h9 km/h7 km/h14 km/h8 km/h12 km/h14 km/h10 km/h3 km/h
wind degree273°277°250°261°264°266°256°262°259°219°105°81°67°56°340°298°263°5°182°213°258°263°280°35°
wind directionWWWSWWWWWSWWWSWESEEENEENENNWWNWWNSSSWWSWWWNE
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm2.2 mm0 mm0 mm
chance for rain0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%100%0%0%
chance for snow0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%
humidity44%41%38%48%46%45%43%43%44%43%40%39%37%35%37%40%40%51%66%86%89%91%93%94%
dew point6°4.8°3.5°1.7°1.6°1.3°0.9°0.7°1.1°1.9°2.3°5.7°6.1°6.6°7.5°8°9.2°9.3°11.4°12.8°10.9°9.9°9.6°9.6°
visibility10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km9 km16 km9 km9 km10 km10 km9 km10 km10 km
cloud cover32%63%19%28%37%33%14%33%100%73%79%78%84%36%16%82%100%90%87%96%85%71%71%75%
UV000000000.41.32.64.14.86.55.60.82.71.30.100000

View of Boulder County today

Explore Boulder County live webcam feed to see how the weather is shaping up today in Boulder County. See what people are wearing, check out the sky, and get a sense of the atmosphere before you step outside.

Stay informed and make the most of your day with our live weather updates from Boulder County today.

Boulder County today

Weather in Boulder County today

The weather in Boulder County today is expected to be slightly cooler than usual, with a forecast temperature of 23 °F, compared to an average of 26 °F for September 16th in recent years.

temperatures
temperatures
23 °F
rain
rain
2.2 mm
wind
wind
14 km/h
1.3
UV
Low
Boulder County daylight overview ☀️
Today in Boulder County, The sun rises at 06:43 and sets at 19:08, giving a total daylight duration of 12 hours and 25 minutes.
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What to wear today in Boulder County? clothing recommendations

Stay comfortably stylish - your tailored guide for today's Boulder County forecast.
  • Long-sleeve shirtLong-sleeve shirt
  • Long pantLong pant
  • Closed-toe shoesClosed-toe shoes
  • Light jacketLight jacket
  • UmbrellaUmbrella

The weather today in Boulder County - FAQ

What is the maximum temperature for today in Boulder County?
The maximum temperature for today in Boulder County is expected to be 23° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain today in Boulder County? 🌧️
Yes, there is a 63% chance of rain in Boulder County today. We recommend carrying an umbrella or rain gear to stay dry.
What will be the wind speed today in Boulder County? 🌀
The wind in Boulder County is expected to blow at 14 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in Boulder County today?
Given the forecast of 23 °F with a 63% chance of rain, we advise checking our "What to wear today" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in Boulder County today.
What is the sunrise and sunset time for Boulder County today?
The sun is expected to rise at 06:43 and set at 19:08 in Boulder County.
How accurate is the weather forecast Boulder County today? ✅
Boulder County weather forecast for today is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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Location coordinates Where is Boulder County?

Get accurate weather forecasts for Boulder County, located at latitude 40.015 and longitude -105.271. Stay updated with localized weather information tailored for Boulder County.

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