Weather in Helena in Summer
| June | July | August | ||||
| Average day temperature: | ||||||
| Average day temperature: | 68.1°F | 80.1°F | 77.5°F | |||
| Average night temperature: | ||||||
| Average night temperature: | 50.0°F | 57.7°F | 57.1°F | |||
| Number of sunny days: | ||||||
| Number of sunny days: | 16 days | 22 days | 22 days | |||
| Day length: | ||||||
| Day length: | 15.6 - 15.9 h. | 14.9 - 15.8 h. | 13.4 - 14.8 h. | |||
| Number of rainy days: | ||||||
| Number of rainy days: | 2 days | 1 day | 1 day | |||
| Precipitation totals: | ||||||
| Precipitation totals: | 1.3 in. | 0.4 in. | 0.5 in. | |||
Day & Night air temperature, °F
Precipitation total, in.
Sunny, partly cloudy and cloudy days
Wind speed, mph
Average sunny hours
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
Best time for vacation in Helena
Helena on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Helena
Local time: 07:40
July 21, tuesday
0900
68°F
S
3 mph
3 mph
1200
81°F
SW
2 mph
2 mph
1500
88°F
SW
6 mph
6 mph
1800
84°F
N
4 mph
4 mph
2100
70°F
NE
2 mph
2 mph
July 22, wednesday
0000
63°F
E
2 mph
2 mph
0300
61°F
E
2 mph
2 mph
0600
59°F
NE
2 mph
2 mph
