The highest day temperature in March 2026 was 74°F. The lowest night temperature was -9°F. The average values for day and night temperatures during March were 52.0°F и 33.2°F respectivly.

You can expect various weather conditions during March. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in March for Great Falls is 0.3 in. It makes march one of the least rainy months of the year.

The average wind speed in March is 8.9 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Great Falls in March is 6.8 hours.