Mountain · 2 routes

Cleghorn Mountain

5,334 ft · California

Summit
5,334 ft
Routes
2 ways up

Routes up Cleghorn Mountain

  1. Cleghorn Ridge TrailEasyabout 327 ft of climbing0.9 mi round tripSee the route
  2. Cleghorn Ridge TrailHardabout 2,133 ft of climbing15.1 mi round tripSee the route
Compare the routes
Cleghorn Ridge TrailCleghorn Ridge Trail
ClimbingAbout 327 ftAbout 2,133 ft
Round trip0.9 mi15.1 mi
DifficultyEasyHard
TerrainHikeHike
Map of the 2 routes up Cleghorn Mountain, with each route's start numbered and the summit marked
Cleghorn Ridge TrailCleghorn Ridge TrailMap © Mapbox © OpenStreetMap contributors

About Cleghorn Mountain

Cleghorn Mountain is a summit of 5,334 feet in the Front Country Ranger District of San Bernardino National Forest in California, about 6 miles from the community of Lytle Creek. Late spring and early fall are the most comfortable times to go. Typical averages from the nearby Lake Arrowhead weather station show May highs around 67°F and September highs around 74°F, while winter brings highs in the low 40s and a few snowy days each month. The Cleghorn Ridge Trail starts just 0.1 mile away, and the Summit Trail is about 3 miles off. Within roughly 6 to 7 miles you'll also find the Lake Arrowhead Area climbing area and the Lytle Creek - Cajon Pass Recreation Area for river fishing.

Forecast on Cleghorn 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 Cleghorn Mountain

How tall is Cleghorn Mountain?

5,334 ft (1,626 m).

How many routes go to the summit of Cleghorn Mountain?

2: Cleghorn Ridge Trail and Cleghorn Ridge Trail.

What is the shortest route up Cleghorn Mountain?

Cleghorn Ridge Trail, about 0.9 mi round trip.

Mountains nearby

More mountains in California

Facts about this place

When to go

Best time to go: Apr–Oct. The mildest months here, with typical highs of 60–82°F and lows of 36–57°F.

Typical monthly averages (not a forecast) from the Lake Arrowhead, CA weather station, 13 mi away. High / low in °F, and days with snow.

  1. Jan44° high29° low1 days with snow
  2. Feb45° high30° low1 days with snow
  3. Mar52° high32° low1 days with snow
  4. Apr60° high36° low1 days with snow
  5. May67° high41° low
  6. Jun76° high49° low
  7. Jul81° high57° low
  8. Aug82° high57° low
  9. Sep74° high52° low
  10. Oct63° high43° low
  11. Nov52° high34° low
  12. Dec43° high29° low1 days with snow

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

Where it is

Nearest town
Lytle Creek, California · 6.1 mi

Source: USFS EDW boundaries; USGS GNIS populated places

Conditions

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

Source: USFS forest alerts

Nearby

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

Is Cleghorn Mountain open right now?

Alert in the area

The Forest Service lists 4 alerts for San Bernardino National Forest.

As of · Source: USFS · San Bernardino National Forest. Agencies don't list every closure — check before you go.

Best time to visit Cleghorn Mountain

Best months: April–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

    44° / 29°

    6 wet · 1 snow

  2. Feb

    45° / 30°

    6 wet · 1 snow

  3. Mar

    52° / 32°

    6 wet · 1 snow

  4. Apr

    60° / 36°

    4 wet · 1 snow

  5. May

    67° / 41°

    2 wet

  6. Jun

    76° / 49°

    1 wet

  7. Jul

    81° / 57°

    1 wet

  8. Aug

    82° / 57°

    1 wet

  9. Sep

    74° / 52°

    1 wet

  10. Oct

    63° / 43°

    2 wet

  11. Nov

    52° / 34°

    3 wet

  12. Dec

    43° / 29°

    5 wet · 1 snow

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Lake Arrowhead, CA, 13.2 mi away at 5,205 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.