The Star WindowMap-first stargazing decisionsData: 2026-05-20 (Fresh)

Data: 2026-05-20 (Fresh)

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City stargazing forecast

South Region South Dakota

Borderline with timing sensitivity

City-level planning view for South Region South Dakota.

Use this page to verify tonight's best window before committing to travel.

State: South Dakota

Tonight score: 60

Best window: Thursday 2:00 AM-4:00 AM MDT

Main factor: CLEAR

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

Why tonight

Decision factors that drive the score

Clouds: 12%

Moon interference: 53%

Darkness: 94%

Light pollution: Low

Darkness class: B2

Excellent dark sky. Milky Way structure is strong.

Best nights this week

South Region South Dakota planning strip

Thursday

90

Good

Friday

89

Good

Saturday

87

Okay

Sunday

85

Okay

Monday

83

Poor

Tuesday

88

Okay

Wednesday

89

Good

FAQ

South Region South Dakota quick planning guidance

Is South Region South Dakota worth it tonight?

Conditions are mixed, so this is more timing-sensitive tonight.

What is the biggest limiter here tonight?

CLEAR. Compare nearby options before driving if your margin is tight.