Weather in Saint Louis County, United States
Weather Advisories
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Tomorrow's weather summary
The weather in Saint Louis County on Wednesday, May 8th, will be cloudy for most of the day, with clear skies before dawn.
There is also a chance for few clouds in the early morning around 6 am.
Weather information for Saint Louis County, on Wednesday, May 8th:
The maximum temperature of the day will be 76°F around 1 pm. The day will have high relative humidity, with average humidity of 63%, ranging from 48% to a maximum value of 79% at about 5 am. The wind will be breezy, and will get up to 16 mph at 10 pm, blowing from the north-east. The cloud coverage will range from 0% around 1 am to as high as 100% around 7 am with an average of 61%.
The precipitation probability will change throughout the day between 0% and 45%. The highest chance for precipitation will be around 11 pm and the lowest probability around midnight. The dew point will range from 43°F up to a maximum value of 55°F around 2 pm.
The visibility is expected to be good with average visibility of 10 mi throughout the day. Atmospheric pressure will be very low with average pressure of 1004 hPa. Sunrise will be at 5:43 am, and sunset at 7:50 pm. The day will have 14 hours and 7 minutes of daylight.
Air quality forecast for Saint Louis County, on Wednesday, May 8th:
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 56.
Pollen forecast for Saint Louis County, on Wednesday, May 8th:
Tree pollen on this day is expected to have low risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.
The weather in Saint Louis County on Thursday, May 9th, will be cloudy for most of the day, with drizzle in the early morning.
There is also a chance for few clouds before dawn at about 1 am.
Weather information for Saint Louis County, on Thursday, May 9th:
The maximum temperature during the day will be 55°F around midnight. The day will have very high relative humidity, with average humidity of 82%, ranging from 62% to a maximum value of 95% at about 6 am. The wind will be breezy, and will get up to 15 mph at 10 am, blowing from the south-east. The cloud coverage will range from 34% around 1 am to as high as 100% around 3 pm with an average of 94%.
The chances of precipitation throughout the day will change between 0% and 50%. The highest chance for precipitation will be around 1 am and the lowest probability around 8 pm. The dew point will range from 37°F up to a maximum value of 51°F around 5 am.
The visibility is expected to be good with average visibility of 11 mi throughout the day. Atmospheric pressure will be low with average pressure of 1005 hPa. Sunrise will be at 5:43 am, and sunset at 7:51 pm, making it a total of 14 hours and 8 minutes of daylight.
Air quality forecast for Saint Louis County, on Thursday, May 9th:
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 25 and 39.
Pollen forecast for Saint Louis County, on Thursday, May 9th:
The overall pollen forecast for this day shows no significant pollen. 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 no risk.
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