Bruneau Dunes stargazing forecast — Friday, August 14

Best observing window tonight

No clear window of 2+ hours during tonight's astronomical night.

Astronomical night

Fri 2:46 p.m. → Sat 12:49 a.m.

Moon

New moon · 2% illuminated

Mean cloud (during night)

93%   (min 45%)

Site

Bruneau Dunes is home to one of the only public observatories in an American state park, built around the tallest single-structured sand dune in North America. On clear Friday and Saturday nights from spring through fall, rangers open the park's telescopes to anyone who shows up.

Drive from Toronto: About an hour southeast of Boise, Idaho via Highway 78 near Mountain Home.

Best time of year: Friday and Saturday evenings, mid-March through mid-October, when the observatory runs public programs — check the season's posted schedule.

Citations & data sources

• Open-Meteo Forecast API (cloud, humidity, wind, visibility)
• Open-Meteo astronomical data (sunrise, sunset, moon)
• Bortle scale reference for site darkness
• Editorial guide for Bruneau Dunes: /sites/bruneau-dunes-sp.txt
• Structured site data: /sites/bruneau-dunes-sp.json
• Live MCP server (AI agents): https://koohxdehsweadgdegrly.supabase.co/functions/v1/mcp

This is a build-time snapshot — the live forecast at https://ontarionightsky.com/?site=bruneau-dunes-sp updates continuously.