StarCast · Waterton Lakes, CA

Night Sky Tonight in Waterton Lakes

Reading tonight's sky conditions…
/ 100
Moon
Dark window
Galactic core
Conditions
Bortle class

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What's in the score
Cloud cover
Moon illumination
Bortle class
Transparency
Humidity

What the app shows you
StarCast galactic core forecast
Nearby dark sky locations

Live scores for the night sky, Milky Way Core windows, darker skies nearby, & more
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Frequently asked
Is tonight good for stargazing at Waterton Lakes?
The live score above pulls today's forecast and runs it through StarCast's scoring model, factoring in cloud cover, moon illumination, Bortle class, humidity, and atmospheric transparency. Above 70 is an excellent night. Below 40, conditions are poor. The score updates daily.
What makes Waterton Lakes good for astrophotography?
Waterton Lakes National Park in southwestern Alberta is a UNESCO Dark Sky Preserve and forms the Canadian half of the Waterton-Glacier International Peace Park. The park where the Rocky Mountains meet the prairie gives photographers an abrupt transition from flat open plains to dramatic mountain peaks within a single frame. Upper Waterton Lake, the deepest lake in the Canadian Rockies, sits directly beneath the mountain front and creates strong reflection compositions. Lethbridge is 130 kilometers to the northeast but produces minimal light impact. Bortle Class 2 conditions are typical on clear nights away from the townsite.
When is the Milky Way visible at Waterton Lakes?
The galactic core is visible from April through September. The park is notorious for wind: Waterton is one of the windiest places in Canada, and nights without wind are worth waiting for when reflection shots are the goal. The clearest and most stable nights tend to fall in late summer (August and September), when the nights have lengthened again after the short darkness of midsummer. Aurora activity is worth monitoring from September onward, and the open prairie to the east provides a wide northern horizon for aurora compositions.