Great Falls, MT Air Quality
As of 1:53 AMAir quality is great — a good day to be outside.
Next 24 hours
US AQIAir quality outlook
Worst hour each day- Today65Moderate
- Fri 969Moderate
- Sat 1041Good
- Sun 1126Good
- Mon 1226Good
From our air-quality forecast models (GEOS-CF / GEFS aerosols). AQI uses the US EPA scale.
Live radar
Open full mapAbout Great Falls weather
Great Falls is in Cascade County, Montana, United States at 47.50°, -111.30°. Right now it’s 47° and clear; today’s high is 78° with a 0% chance of rain.
Montana's climate is defined by its position as a gateway between the Pacific maritime influences from the west and the harsh continental climate of the northern Great Plains. The state holds the record for the largest 24-hour temperature change in U.S. history, when Loma experienced a 103-degree rise from minus 54 to 49 degrees Fahrenheit in January 1972. The Continental Divide runs through the western mountains, creating dramatically different weather on either side.
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