# Free museum days at Prosser Historical Museum (Benton County Historical Museum) — hours & season

Prosser Historical Museum (Benton County Historical Museum): hours, season and location, from official sources.

**Prosser Historical Museum (Benton County Historical Museum): Wed–Sat 1 PM–5 PM.** _(as of 2026-10-15T16:11:29.552Z)_

- **Address:** 1000 Paterson Rd., Prosser, WA 99350
- **Hours:** Wed–Sat 1 PM–5 PM
- **Website:** https://prossermuseum.com/
- **Notes:** Its own site has a Donate button and states no admission price. A search-result summary said members of the public are granted free admission, but that is not confirmed on the museum's own site, so free status is unconfirmed. The site says it is 'closed September 23-29, 2026.

## Common questions

### When is Prosser Historical Museum (Benton County Historical Museum) open?

Prosser Historical Museum (Benton County Historical Museum) is open Wed–Sat 1 PM–5 PM.

_Data as of 2026-10-15T12:00:00-07:00 · Sources: web research_

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