Great Falls Weather: May
 |
Average Day Temperature: | 63.8°F |
|
Average Night Temperature: | 45.3°F |
|
Number of Sunny Days: | 13 days |
| Sunshine Hours: | 14.5 - 15.7 hours | |
|
Number of Rainy Days: | 3 days |
| Precipitation Totals: | 1.3 in | |
| detailed information | ||
14 day weather
forecast
forecast
| Great Falls |
When is the Best
Time to Visit?
Time to Visit?
| Great Falls |
Air Temperature in May, °F
The highest day temperature in May 2026 was 94°F. The lowest night temperature was 26°F. The average values for day and night temperatures during May were 70.0°F и 47.4°F respectivly.
Sunny, Cloudy and Gloomy days
Most of the days in May are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in May, in
Precipitation total in May for Great Falls is 1.3 in. It makes may the most rainy month of the year.
Wind Speed in May, mph
The average wind speed in May is 8.1 mph. This value is relatively stable throughout the year.
Average Sunny Hours Per Day
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 May is 9.1 hours.
Great Falls on the Weather Map
USA Resorts:
NAME
F°
| Boston |  |
+92 |
| Chicago | |
+86 |
| Hawaii |  |
+80 |
| Houston |  |
+80 |
| Las Vegas | |
+120 |
| Los Angeles | |
+106 |
| Maui |  |
+76 |
| Miami | |
+96 |
| Myrtle Beach | |
+96 |
| New York | |
+110 |
| San Diego | |
+96 |
| San Francisco | |
+76 |
| Santa Monica | |
+84 |
| Sarasota | |
+102 |
| Tampa | |
+100 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Great Falls
Local time: 13:08
15 jul, wednesday
| 1500 |  |
96°F | S 6 mph |
| 1800 |  |
94°F | S 11 mph |
| 2100 | |
88°F | SW 2 mph |
16 jul, thursday
| 0000 |  |
74°F | N 4 mph |
| 0300 |  |
68°F | NE 4 mph |
| 0600 | |
66°F | N 4 mph |
| 0900 | |
78°F | NE 2 mph |
| 1200 | |
92°F | W 8 mph |