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Weather on August 4 at Great Sand Dunes

Great Sand Dunes National Park and Preserve

CORocky Mountain8,200 ft elevation
Avg High81°F
Avg Low48°F
Warmest202673°F
Coldest201757°F

Based on 56 years of data from Alamosa, CO

Elevation Note: Great Sand Dunes sits at 8,200 ft. Expect temperatures 29°F cooler than the data shown below, which comes from Alamosa, CO at a lower elevation.

Planning Your Visit

August 4th in Great Sand Dunes National Park (via Alamosa, CO) typically brings warm summer weather, with average highs around 81°F and lows near 48°F — a 33°F daily swing. Over 56 years of records, the warmest August 4th was in 2026 (73°F average), while the coldest was 2017 (57°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 29% of August 4th dates historically. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.

The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.

Planning for August 4th in Great Sand Dunes? Stay hydrated and seek shade during peak afternoon hours.

Year by Year History

YearHighLowPrecipSnow
202693°F53°F0"0"
202588°F40°F0"0"
202489°F49°F0"0"
202386°F42°F0"0"
202282°F51°F0"0"
202179°F47°F0.03"0"
202086°F52°F0"0"
201982°F51°F0"0"
201875°F43°F0.14"0"
201771°F43°F0.1"0"
201681°F53°F0"0"
201578°F44°F0.02"0"
201480°F53°F0"0"
201382°F48°F0.01"0"
201280°F46°F0"--
201181°F54°F0"--
201083°F46°F0"0"
200982°F41°F0"0"
200886°F46°F0"0"
200782°F54°F0"0"
200674°F47°F0.03"0"
200580°F57°F0.01"0"
200486°F43°F0"0"
200385°F48°F0"0"
200280°F48°F0"0"
200183°F49°F0"0"
200085°F48°F0"0"
199965°F53°F0.16"0"
199870°F50°F0"0"
199776°F52°F0"0"
199681°F48°F0"0"
199583°F47°F0.09"0"
199485°F46°F0.03"0"
199380°F52°F0.05"0"
199280°F50°F0"0"
199170°F54°F0.03"0"
199078°F40°F0"0"
198983°F46°F0"0"
198883°F51°F0"0"
198781°F48°F0"0"
198677°F43°F0"0"
198580°F47°F0"0"
198478°F52°F0"0"
198380°F51°F0"0"
198282°F53°F0"0"
198186°F51°F0"0"
198088°F44°F0"0"
197987°F43°F0"0"
197878°F41°F0"0"
197784°F45°F0.01"0"
197679°F41°F0"0"
197583°F43°F0"0"
197474°F44°F0.08"0"
197379°F40°F0"0"
197280°F53°F0.1"0"
197179°F49°F0.01"0"

August 4 at Nearby Parks

Holiday Weather at Great Sand Dunes

Official NPS WebsiteVisit nps.gov/grsa for park information, alerts, and reservations

Explore More at Great Sand Dunes

See historical weather for other dates

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