Weather in Helena, United States
Weather Advisories
in the data behind our forecast?
Today's weather summary
The weather in Helena on Saturday, December 28th, is going to be clear throughout the day.
There is also a chance of few clouds before dawn, around 12 am.
Weather information for Helena, on Saturday, December 28th:
The maximum temperature during the day is going to be 25°F around midnight. The day will have very high relative humidity, with average humidity of 83%. The wind will be light, and will get up to 8 mph at midnight, blowing from the west. The cloud coverage will range from 0% around 1 am to as high as 34% around 5 pm with an average of 5%.
There is no probability for any precipitation throughout the day. The dew point will range from 11°F up to a maximum value of 21°F around midnight.
The visibility is expected to be good with average visibility of 10 mi throughout the day. Atmospheric pressure will be low with average pressure of 1004 hPa. Sunrise will be at 8:27 am, and sunset at 4:44 pm, making it a total of 8 hours and 17 minutes of daylight.
Air quality forecast for Helena, on Saturday, December 28th:
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 28 and 72.
Pollen forecast for Helena, on Saturday, December 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.
The weather in Helena on Sunday, December 29th, will change throughout the day from lightly foggy condition to clear.
According to our models light fog will appear during the evening and there is a high chance for clear skies before dawn.
Weather details for Helena, on Sunday, December 29th:
The highest temperature during the day will be 17°F at about midnight. The day will have very high relative humidity, with average humidity of 87%. The wind will be light, and will get up to 6 mph at midnight, blowing from the west. The cloud coverage will range from 0% around midnight to as high as 100% around 11 pm with an average of 54%.
There is no probability for any precipitation throughout the day. The dew point will range from 6°F up to a maximum value of 13°F around midnight.
The visibility is expected to be good with average visibility of 9 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1013 hPa. Sunrise will be at 8:27 am, and sunset at 4:45 pm. The day will have 8 hours and 18 minutes of daylight.
Air quality forecast for Helena, on Sunday, December 29th:
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 53 and 90.
Pollen forecast for Helena, on Sunday, December 29th:
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.
Nearby locations
FAQ
