Weather in O'Fallon, United States
Weather Advisories
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Today's weather summary
The weather in O'Fallon on Monday, July 27th, will be clear throughout the day, together with cloud overcast before dawn.
There's seems to be also high probability of some clouds before dawn around 2 am.
Weather details for O'Fallon, on Monday, July 27th:
The highest temperature during the day is going to be 39°C at about 4 pm. The day will be humid, with average humidity of 64%, ranging from 31% to a maximum value of 91% at about 1 am. The wind will be strong, and will get up to 38 km/h at 8 pm, blowing from the north-west. The cloud coverage will range from 0% around 5 am to as high as 100% around 6 pm with an average of 35%.
The precipitation probability will change throughout the day between 0% and 35%. The highest chance for precipitation will be around 8 pm and the lowest probability around midnight. The dew point will range from 18°C up to a maximum value of 27°C around 1 am.
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 5:56 am, and sunset at 8:15 pm, making it a total of 14 hours and 19 minutes of daylight.
Air quality forecast for O'Fallon, on Monday, July 27th:
On average, the air quality on this day will be moderate, meaning that air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. According to our index, ranging from 0 to 500, the air quality is going to be between values of 60 and 69.
Pollen forecast for O'Fallon, 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 no risk.
The weather in O'Fallon on Tuesday, July 28th, 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 at about 6 am.
Weather information for O'Fallon, on Tuesday, July 28th:
The highest temperature of the day is going to be 34°C around 4 pm. The day will be humid, with average humidity of 61%, ranging from 45% to a maximum value of 77% at about 1 am. The wind will be breezy, and will get up to 17 km/h at 1 pm, blowing from the north. The cloud coverage will range from 0% around midnight to as high as 100% around 11 pm with an average of 73%.
There is no probability for any precipitation throughout the day. The dew point will range from 19°C up to a maximum value of 23°C around 1 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 1008 hPa. Sunrise will be at 5:57 am, and sunset at 8:14 pm. The day will have 14 hours and 17 minutes of daylight.
Air quality forecast for O'Fallon, on Tuesday, July 28th:
On average, the air quality on this day will be moderate, meaning that air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. According to our index, ranging from 0 to 500, the air quality is going to be between values of 37 and 69.
Pollen forecast for O'Fallon, 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 no risk.
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