Weather in Helena, United States
Weather Advisories
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Today's weather summary
The weather in Helena on Sunday, July 19th, will change throughout the day from condition to clear, mixed with light rain.
Looks like moderate rain will appear around noon and a high probability for clear skies before dawn.
Weather details for Helena, on Sunday, July 19th:
The highest temperature during the day will be 92°F at about 5 pm. The day will be extremely humid, with average humidity of 80%, ranging from 48% to a maximum value of 95% at about 11 pm. The wind will be breezy, and will get up to 17 mph at 11 am, blowing from the south. The cloud coverage will range from 0% around 1 am to as high as 100% around 4 pm with an average of 55%.
The precipitation probability will change throughout the day between 0% and 55%. The highest chance for precipitation will be around 5 pm and the lowest probability around midnight. The dew point will range from 67°F up to a maximum value of 76°F around 3 pm.
The visibility is expected to be good with average visibility of 8 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1014 hPa. Sunrise will be at 5:50 am, and sunset at 7:56 pm, making it a total of 14 hours and 6 minutes of daylight.
Air quality forecast for Helena, on Sunday, July 19th:
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 64 and 76.
Pollen forecast for Helena, on Sunday, July 19th:
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 Helena on Monday, July 20th, will be mostly clear throughout the day, with light fog before dawn.
There is also a chance for cloud overcast before dawn at about 12 am, and also drizzle around noon around 2 pm.
Weather information for Helena, on Monday, July 20th:
The maximum temperature of the day is going to be 92°F at about 4 pm. The day will be extremely humid, with average humidity of 79%, ranging from 53% to a maximum value of 99% at about 6 am. The wind will be light, and will get up to 10 mph at 11 pm, blowing from the south-west. The cloud coverage will range from 12% around 9 pm to as high as 100% around 4 pm with an average of 45%.
The precipitation probability will change throughout the day between 0% and 35%. The highest chance for precipitation will be around 5 pm and the lowest probability around 1 am. The dew point will range from 71°F up to a maximum value of 77°F around 9 pm.
The visibility is expected to be fair with average visibility of 6 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1012 hPa. Sunrise will be at 5:51 am, and sunset at 7:55 pm, making it a total of 14 hours and 4 minutes of daylight.
Air quality forecast for Helena, on Monday, July 20th:
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 63 and 77.
Pollen forecast for Helena, on Monday, July 20th:
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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