Weather in Alton, United States
Weather Advisories
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Today's weather summary
The weather in Alton on Sunday, July 26th, is going to be clear throughout the day, together with cloud overcast before dawn.
There is also a chance for some clouds around noon at about 11 am.
Weather details for Alton, on Sunday, July 26th:
The maximum temperature during the day will be 41°C around 4 pm. The day will have comfortable humidity, with average humidity of 53%, ranging from 24% to a maximum value of 84% at about 2 am. The wind will be breezy, and will get up to 24 km/h at 4 pm, blowing from the south. The cloud coverage will range from 0% around midnight to as high as 100% around 10 pm with an average of 42%.
There is no probability for any precipitation throughout the day. The dew point will range from 17°C up to a maximum value of 23°C around midnight.
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 6:30 am, and sunset at 8:54 pm, making it a total of 14 hours and 24 minutes of daylight.
Air quality forecast for Alton, on Sunday, July 26th:
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 49 and 56.
Pollen forecast for Alton, on Sunday, July 26th:
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 Alton on Monday, July 27th, will be cloudy for most of the day, with clear skies before dawn.
There is also a chance for some clouds before dawn around 12 am.
Weather information for Alton, on Monday, July 27th:
The highest temperature of the day is going to be 43°C at about 5 pm. The day will be dry, with average humidity of 44%, ranging from 20% to a maximum value of 64% at about 11 pm. The wind will be breezy, and will get up to 26 km/h at 8 pm, blowing from the north. The cloud coverage will range from 0% around 1 am to as high as 100% around 11 pm with an average of 60%.
The chances of precipitation throughout the day will change between 0% and 5%. The highest chance for precipitation will be around 9 pm and the lowest probability around midnight. The dew point will range from 15°C up to a maximum value of 24°C around 10 pm.
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 1005 hPa. Sunrise will be at 6:30 am, and sunset at 8:53 pm, making it a total of 14 hours and 23 minutes of daylight.
Air quality forecast for Alton, 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 43 and 56.
Pollen forecast for Alton, 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.
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