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

Data: 2026-04-04 (Fresh)

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City stargazing forecast

Great Sand Dunes

Worth planning tonight

Great Sand Dunes is a flagship dark-sky destination with strong nightscape interest and elevation-driven variability.

Use the best-window and limiter signals to avoid marginal conditions before travel.

State: Colorado

Tonight score: 93

Best window: Saturday 10:00 PM-12:00 AM MDT

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

Great Sand Dunes planning strip

Thursday

93

Good

Friday

91

Good

Saturday

89

Okay

Sunday

88

Okay

Monday

85

Poor

Tuesday

89

Okay

Wednesday

91

Good

FAQ

Great Sand Dunes quick planning guidance

Is Great Sand Dunes 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.