Weather in Mount Saint Helens, United States
Weather Advisories
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Today's weather summary
The weather in Mount Saint Helens on Monday, July 27th, will be clear throughout the day.
Additionally, there will be few clouds before dawn, around 1 am.
Weather details for Mount Saint Helens, on Monday, July 27th:
The highest temperature during the day will be 15°C at about 4 pm. The day will have very high relative humidity, with average humidity of 72%, ranging from 57% to a maximum value of 84% at about 10 am. The wind will be breezy, and will get up to 22 km/h at 11 pm, blowing from the south-west. The cloud coverage will range from 0% around 4 am to as high as 73% around 7 am with an average of 7%.
There is no probability for any precipitation throughout the day. The dew point will range from 1°C up to a maximum value of 7°C around 11 am.
The visibility is expected to be good with average visibility of 16 km throughout the day. Atmospheric pressure will be normal with average pressure of 1018 hPa. Sunrise will be at 5:44 am, and sunset at 8:45 pm, making it a total of 15 hours and 1 minutes of daylight.
Air quality forecast for Mount Saint Helens, on Monday, July 27th:
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 13 and 38.
Pollen forecast for Mount Saint Helens, on Monday, July 27th:
The overall pollen forecast for this day shows no significant pollen. 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 very low risk.
The weather in Mount Saint Helens on Tuesday, July 28th, is going to be clear throughout the day, with few clouds around noon.
There is also a chance for cloud overcast during the morning at about 9 am.
Weather information for Mount Saint Helens, on Tuesday, July 28th:
The highest temperature of the day will be 11°C at about 5 pm. The day will have very high relative humidity, with average humidity of 79%, ranging from 71% to a maximum value of 86% at about 4 pm. The wind will be breezy, and will get up to 23 km/h at 6 am, blowing from the south-west. The cloud coverage will range from 0% around midnight to as high as 100% around 10 am with an average of 27%.
There is no probability for any precipitation throughout the day. The dew point will range from 4°C up to a maximum value of 8°C around 4 pm.
The visibility is expected to be good with average visibility of 16 km throughout the day. Atmospheric pressure will be normal with average pressure of 1016 hPa. Sunrise will be at 5:45 am, and sunset at 8:44 pm. The day will have 14 hours and 59 minutes of daylight.
Air quality forecast for Mount Saint Helens, on Tuesday, July 28th:
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 16 and 39.
Pollen forecast for Mount Saint Helens, on Tuesday, July 28th:
The overall pollen forecast for this day shows no significant pollen. 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 very low risk.
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