Auroras (northern lights) in Helena — Aug 25, 2025
Probability of northern lights in Helena
Information as of 2025-08-25 23:57 (end of day) local time in Helena
2 %
Helena
Aurora intensity index
Auroral intensity index and the theoretically possible latitude of observations for nighttime in the Western Hemisphere as of 2025-08-25 23:57 (end of day) local time
Northern lights (auroras) over North America
Changes from 2025-08-25 to 2025-08-26 UTC
Northern lights (auroras) in the northern hemisphere
Changes from 2025-08-25 to 2025-08-26 UTC
Probability of northern lights (auroras) in cities of United States
Information as of 2025-08-25 23:57 (end of day) local time in Helena
0 %
Washington
0 %
New York
0 %
Chicago
0 %
Philadelphia
1 %
Seattle
0 %
Detroit
0 %
Portland
0 %
Boston
1 %
Madison
4 %
Bismarck
1 %
Olympia
2 %
Helena
2 %
Saint Paul
20 %
Fairbanks
8 %
Anchorage
10 %
Juneau
3 %
Hooper Bay
8 %
Nome
13 %
Kotzebue
21 %
Utqiagvik
3 %
Bethel
10 %
Cordova
Polar auroras over the past 2 days
Changes in the auroral intensity index from 2025-08-24 to 2025-08-25 local time
