Auroras (northern lights) in Helena

Dec 18, 2025 02:22 Helena

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Probability of northern lights in Helena

Forecast for 2025-12-18 02:56 local time in Helena

3 % Helena

Auroral intensity index and theoretically possible latitude of observations for nighttime in the Western Hemisphere

Forecast for 2025-12-18 02:56 local time in Helena

[ Click on the image to see changes over the past 24 hours ]

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Forecast for 2025-12-18 02:56 local time in Helena

[ Click on the image to see changes over the past 24 hours ]

API: JSON | TXT | HTML

high resolution

Forecast for 2025-12-18 02:56 local time in Helena

0 % Washington

0 % New York

1 % Chicago

0 % Philadelphia

3 % Seattle

1 % Detroit

1 % Portland

0 % Boston

2 % Madison

6 % Bismarck

2 % Olympia

3 % Helena

4 % Saint Paul

87 % Fairbanks

55 % Anchorage

47 % Juneau

38 % Hooper Bay

71 % Nome

87 % Kotzebue

74 % Utqiagvik

36 % Bethel

62 % Cordova

Changes and hourly forecast of the auroral intensity index from 2025-12-17 to 2025-12-18

API: JSON | TXT