Mountain · 1 route

Marion Mountain

5,341 ft · Oregon

Summit
5,341 ft
Routes
1 way up
Season
Year-round

Route up Marion Mountain

  1. Marion MountainEasyabout 613 ft of climbing1.7 mi round tripSee the route
Map of the route up Marion Mountain, with each route's start numbered and the summit marked
Marion MountainMap © Mapbox © OpenStreetMap contributors

About Marion Mountain

Marion Mountain is a summit of 5,341 feet in the Mount Jefferson Wilderness, part of the Detroit Ranger District of the Willamette National Forest in Oregon. The nearest town is Camp Sherman, about 13 miles away. Summer is the most comfortable time to go. Typical averages from the nearby Santiam Junction weather station, which sits well below the summit, show July and August highs around 76°F with lows near 42°F. That station's figures are only a guide, since temperatures on the mountain run cooler. Several trails start close by. Temple Lake is about a mile away, and the Marion Lake Trail 3436 and Marion Lake hikes are each about 1.4 miles off. For an overnight base, Marion Forks Campground is about 5 miles away.

Forecast on Marion Mountain

Daily highs and lows, wind and the chance of precipitation at the summit and route start for the next 7 days, from the Open-Meteo model.

Questions about Marion Mountain

How tall is Marion Mountain?

5,341 ft (1,628 m).

How many routes go to the summit of Marion Mountain?

One: Marion Mountain.

When is the best time to climb Marion Mountain?

Year-round.

Mountains nearby

More mountains in Oregon

Facts about this place

When to go

Best time to go: Jun–Sep. The mildest months here, with typical highs of 65–76°F and lows of 38–42°F.

Typical monthly averages (not a forecast) from the Santiam Junction, OR weather station, 8.3 mi away. High / low in °F.

  1. Jan38° high24° low
  2. Feb41° high24° low
  3. Mar44° high26° low
  4. Apr49° high29° low
  5. May58° high35° low
  6. Jun65° high38° low
  7. Jul76° high42° low
  8. Aug76° high42° low
  9. Sep69° high39° low
  10. Oct56° high33° low
  11. Nov42° high28° low
  12. Dec36° high23° low

The station sits about 1,600 ft lower than this spot, so expect it to run cooler up here.

Source: NOAA NCEI U.S. Climate Normals 1991–2020

Where it is

Nearest town
Camp Sherman, Oregon · 13 mi

Source: Wilderness.net boundaries; USFS EDW boundaries; USGS GNIS populated places

Conditions

Active alerts for Detroit Ranger District as of Oct 9, 2026:

Source: USFS forest alerts

Nearby

Source: Roamze catalog (indexable pages within 10 miles, PostGIS distance)

Is Marion Mountain open right now?

Closure in the area

There's a closure order in Detroit Ranger District. It doesn't name Marion Mountain, so check the source for the area it covers (2 listed).

As of · Source: USFS · Detroit Ranger District. Agencies don't list every closure — check before you go.

Best time to visit Marion Mountain

Best months: May–October. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.

  1. Jan

    38° / 24°

  2. Feb

    41° / 24°

  3. Mar

    44° / 26°

  4. Apr

    49° / 29°

  5. May

    58° / 35°

  6. Jun

    65° / 38°

  7. Jul

    76° / 42°

  8. Aug

    76° / 42°

  9. Sep

    69° / 39°

  10. Oct

    56° / 33°

  11. Nov

    42° / 28°

  12. Dec

    36° / 23°

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Santiam Junction, OR, 8.3 mi away at 3,750 ft. The station sits about 1,600 ft lower than this place, so expect it a little cooler here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.