The Star WindowMap-first stargazing decisionsData: 2026-04-04 (Fresh)

Data: 2026-04-04 (Fresh)

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City stargazing forecast

Flagstaff

Worth planning tonight

Flagstaff is one of the strongest dark-sky gateway areas in the U.S. and is a high-intent destination for Milky Way and deep-sky planning.

Use this page to validate cloud timing and moon interference before travel to darker northern Arizona corridors.

State: Arizona

Tonight score: 95

Best window: Sunday 2:00 AM-4:00 AM MST

Main factor: Clear window with strong viewing conditions.

View full location pageParent state forecastView on mapStargazing forecast tonightMilky Way in this state

Why tonight

Decision factors that drive the score

Clouds: 0%

Moon interference: 97%

Darkness: 70%

Light pollution: Moderate

Darkness class: B3

Good dark sky. Milky Way visible with contrast loss.

Best nights this week

Flagstaff planning strip

Thursday

95

Good

Friday

93

Good

Saturday

91

Okay

Sunday

90

Okay

Monday

87

Poor

Tuesday

91

Okay

Wednesday

93

Good

FAQ

Flagstaff quick planning guidance

Is Flagstaff worth it tonight?

Yes, current conditions are favorable if you follow the best window.

What is the biggest limiter here tonight?

Clear window with strong viewing conditions.. Compare nearby options before driving if your margin is tight.