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Weather in Boulder, United States

27°
Partly cloudy
Feels like 27°
·
High37°Low22°

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Air quality

Full Details
0
47
500
Air quality:Good

Pollen index

Full Details
Tree
0/5
012345
Weed
0/5
012345
Grass
2/5
012345

Tomorrow's weather summary

The weather in Boulder on Saturday, July 25th, will be clear for most of the day, with cloud overcast in the early morning.

There is also a chance for few clouds during the morning around 8 am.

Weather information for Boulder, on Saturday, July 25th:

The maximum temperature during the day is going to be 33°C at about 5 pm. The day will be dry, with average humidity of 35%, ranging from 19% to a maximum value of 58% at about midnight. The wind will be breezy, and will get up to 26 km/h at 4 pm, blowing from the south-west. The cloud coverage will range from 0% around 1 am to as high as 100% around 10 pm with an average of 39%.

There is no probability for any precipitation throughout the day. The dew point will range from 6°C up to a maximum value of 14°C around 10 am.

The visibility is expected to be good with average visibility of 16 km throughout the day. Atmospheric pressure will be low with average pressure of 1007 hPa. Sunrise will be at 5:53 am, and sunset at 8:22 pm. The day will have 14 hours and 29 minutes of daylight.

Air quality forecast for Boulder, on Saturday, July 25th:

On average, the air quality on this day will be good, meaning that air quality is satisfactory, and air pollution poses little or no risk. According to our index, ranging from 0 to 500, the air quality is going to be between values of 32 and 55.

Pollen forecast for Boulder, on Saturday, July 25th:

Tree pollen on this day is expected to have no risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have low risk.

The weather in Boulder on Sunday, July 26th, is going to be cloudy for most of the day, with clear skies before dawn.

There's seems to be also high probability of some clouds in the early morning around 5 am.

Weather information for Boulder, on Sunday, July 26th:

The maximum temperature during the day will be 34°C at about noon. The day will be dry, with average humidity of 31%, ranging from 18% to a maximum value of 56% at about 11 pm. The wind will be breezy, and will get up to 23 km/h at 7 am, blowing from the west. The cloud coverage will range from 0% around 1 am to as high as 100% around 11 pm with an average of 66%.

The chances of precipitation throughout the day will change between 0% and 25%. The highest chance for precipitation will be around 5 pm and the lowest probability around midnight. The dew point will range from 4°C up to a maximum value of 14°C around 9 pm.

The visibility is expected to be good with average visibility of 15 km throughout the day. Atmospheric pressure will be normal with average pressure of 1009 hPa. Sunrise will be at 5:54 am, and sunset at 8:21 pm. The day will have 14 hours and 27 minutes of daylight.

Air quality forecast for Boulder, on Sunday, July 26th:

On average, the air quality on this day will be good, meaning that air quality is satisfactory, and air pollution poses little or no risk. According to our index, ranging from 0 to 500, the air quality is going to be between values of 29 and 54.

Pollen forecast for Boulder, on Sunday, July 26th:

Tree pollen on this day is expected to have no risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have low risk.

FAQ

How warm does it get in Boulder?
The average annual highest temperature in Boulder is 29.2°C (84.6°F), and the July 26th is the hottest day on average.
How cold does it get in Boulder?
The average annual lowest temperature in Boulder is -14.5°C (5.9°F), and the January 1st is the coldest day on average.
Which month has the most rain in Boulder?
The wettest months in Boulder are May and July.
What months does it snow in Boulder?
The most common time of year for snow is April, March, February, December, January, November, October and May.