Flagstaff, US Stargazing Forecast

Flagstaff, US (35.2°, -111.65°) · Updated 11:03 UTC
74
Good
high confidence
high · Forecast stability

Tonight's forecast has held steady across recent updates. We compare how much tonight's score has moved across our recent forecast updates, a score that's held steady is more trustworthy.

Confidence reflects how trustworthy the forecast is, it doesn't change the score.

Worth a look tonight
BEST 04:00–11:00 (7h)
Near-perfect skies but bright moonlight limits faint objects. Delta Aquariids meteor shower active.
Sunset
02:32
Sunrise
12:34
Usable Hours
7/7
Moon
100%
Visible Planets
♂ Mars19° E
♄ Saturn55° SE
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Stargazing in Flagstaff, US

Flagstaff was the world's first International Dark Sky City, and it takes this seriously — strict lighting codes keep the city at Bortle 4, an astonishing achievement for an urban area. Lowell Observatory (where Pluto was discovered) sits within the city. At 2,100m altitude, the air is thin, dry, and clean, producing excellent transparency and seeing. The surrounding Coconino National Forest offers Bortle 2–3 conditions. Summer monsoons bring afternoon clouds but often clear by evening.

Flagstaff, US Stargazing FAQ

Why is Flagstaff a Dark Sky City?
Flagstaff was the world's first International Dark Sky City, designated in 2001. Strict lighting codes keep the city at Bortle 4 — an exceptional achievement for an urban area. Lowell Observatory, where Pluto was discovered, sits within the city.
Can you see the Milky Way from Flagstaff?
Yes — Flagstaff's Bortle 4 skies and 2,100m altitude mean the Milky Way is visible from within the city on clear, moonless nights. The surrounding Coconino National Forest drops to Bortle 2-3 for even better views.
Is Flagstaff good for astrophotography?
Excellent — the combination of dark skies, high altitude, dry air, and good seeing conditions makes Flagstaff one of the best astrophotography locations in the US. The ponderosa pine forests provide dramatic foreground interest.