Auroras (northern lights) in Helena — Mar 21, 2025
Probability of northern lights in Helena
Information as of 2025-03-21 23:58 (end of day) local time in Helena
4 %
Helena
Aurora intensity index
Auroral intensity index and the theoretically possible latitude of observations for nighttime in the Western Hemisphere as of 2025-03-21 23:58 (end of day) local time
Northern lights (auroras) over North America
Changes from 2025-03-21 to 2025-03-22 UTC
Northern lights (auroras) in the northern hemisphere
Changes from 2025-03-21 to 2025-03-22 UTC
Probability of northern lights (auroras) in cities of United States
Information as of 2025-03-21 23:58 (end of day) local time in Helena
0 %
Washington
0 %
New York
0 %
Chicago
0 %
Philadelphia
3 %
Seattle
0 %
Detroit
1 %
Portland
0 %
Boston
1 %
Madison
7 %
Bismarck
2 %
Olympia
4 %
Helena
3 %
Saint Paul
42 %
Fairbanks
19 %
Anchorage
23 %
Juneau
9 %
Hooper Bay
19 %
Nome
31 %
Kotzebue
36 %
Utqiagvik
10 %
Bethel
24 %
Cordova
Polar auroras over the past 2 days
Changes in the auroral intensity index from 2025-03-20 to 2025-03-21 local time
