Prineville Reservoir stargazing forecast — Friday, August 14

Central OR · Bortle 2 · 44.150, -120.750 · Snapshot generated Sat, 15 Aug 2026 02:05:08 GMT

Poor (Medium confidence)

No sustained clear window; brief gaps possible (min cloud 1%).

Best observing window tonight

Fri 2:00 p.m. – Fri 2:00 p.m. (1h, 4% mean cloud)

Astronomical night: Fri 1:09 p.m. → Fri 11:07 p.m.
Moon: New moon · 2% illuminated
Mean cloud (during night): 68% (min 1%)

Site

Prineville Reservoir State Park runs its own small observatory in the main day-use area and is a certified International Dark Sky Park in central Oregon's high desert. It's an easy, family-friendly stop for stargazing without heading deep into the backcountry.

Drive from Toronto: About 25 miles southeast of Prineville, Oregon, and roughly an hour from Bend.

Best time of year: Summer weekends, when the park runs scheduled stargazing and constellation-tour events — check the Oregon State Parks events calendar for dates.

Open the live 48-hour forecast →

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 Prineville Reservoir: /sites/prineville-reservoir-sp.txt
Structured site data: /sites/prineville-reservoir-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=prineville-reservoir-sp updates continuously.