Weather in Saint Helens, United States
Weather Advisories
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Today's weather summary
The weather in Saint Helens on Sunday, May 26th, will vary throughout the day from cloudy condition to clear.
According to our models cloud overcast will emerge in the early morning and there is a high chance for clear skies before dawn.
Weather details for Saint Helens, on Sunday, May 26th:
The maximum temperature of the day will be 70°F around 6 pm. The day will have comfortable humidity, with average humidity of 51%, ranging from 34% to a maximum value of 74% at about 6 am. The wind will be breezy, and will get up to 12 mph at 10 am, blowing from the south-west. The cloud coverage will range from 0% around midnight to as high as 100% around 11 pm with an average of 44%.
There is no probability for any precipitation throughout the day. The dew point will range from 35°F up to a maximum value of 41°F around 8 pm.
The visibility is expected to be good with average visibility of 10 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1018 hPa. Sunrise will be at 5:24 am, and sunset at 8:19 pm. The day will have 14 hours and 55 minutes of daylight.
Air quality forecast for Saint Helens, on Sunday, May 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 26 and 42.
Pollen forecast for Saint Helens, on Sunday, May 26th:
Tree pollen on this day is expected to have very low risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have very high risk.
The weather in Saint Helens on Monday, May 27th, will be cloudy throughout the day, with some clouds during the evening.
There is also a chance for clear skies before dawn at about 12 am.
Weather details for Saint Helens, on Monday, May 27th:
The highest temperature of the day will be 79°F around 5 pm. The day will have comfortable humidity, with average humidity of 49%, ranging from 24% to a maximum value of 78% at about 6 am. The wind will be light, and will get up to 8 mph at 3 am, blowing from the south. The cloud coverage will range from 0% around midnight to as high as 100% around 2 pm with an average of 83%.
There is no probability for any precipitation throughout the day. The dew point will range from 39°F up to a maximum value of 46°F around noon.
The visibility is expected to be good with average visibility of 10 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1017 hPa. Sunrise will be at 5:23 am, and sunset at 8:20 pm. The day will have 14 hours and 57 minutes of daylight.
Air quality forecast for Saint Helens, on Monday, May 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 20 and 43.
Pollen forecast for Saint Helens, on Monday, May 27th:
Tree pollen on this day is expected to have very low risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have very high risk.
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