Mountain · 1 route
Rattlesnake Peak
5,817 ft · California
- Summit
- 5,817 ft
- Routes
- 1 way up
- Season
- Year-round
Route up Rattlesnake Peak
About Rattlesnake Peak
Rattlesnake Peak is a summit of 5,817 feet in the San Gabriel Mountains National Monument Ranger District of Angeles National Forest, about 10 miles from Glendora, California. Spring and fall are the most comfortable times to go. Typical averages from the nearby Wrightwood weather station, at a similar elevation, show May highs around 69°F and October highs around 64°F, while winter highs sit in the upper 40s. Several trails start close by, including Allison Gulch Trail, East Fork Trail and Heaton Flat Trail, each within about 2.5 miles. Coldbrook Campground, about 4 miles away, offers a place to stay.
Forecast on Rattlesnake Peak
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 Rattlesnake Peak
How tall is Rattlesnake Peak?
5,817 ft (1,773 m).
How many routes go to the summit of Rattlesnake Peak?
One: Bichota Canyon Trail.
When is the best time to climb Rattlesnake Peak?
Year-round.
Mountains nearby
- South Mount Hawkins7,786 ft · California1 route3.4 mi away
Iron Mountain8,009 ft · California1 route3.8 mi awayPhoto: Self, CC BY 3.0 (via Wikimedia Commons)
Mount Islip8,252 ft · California2 routes6.2 mi awayPhoto: Eeekster, CC BY 3.0 (via Wikimedia Commons)- Mount San Antonio10,067 ft · California4 routes7.6 mi away
- Johnstone Peak3,198 ft · California1 route7.8 mi away
- Stoddard Peak4,611 ft · California1 route8.2 mi away
Facts about this place
When to go
Best time to go: Apr–Oct. The mildest months here, with typical highs of 60–83°F and lows of 32–53°F.
Typical monthly averages (not a forecast) from the Wrightwood, CA weather station, 10 mi away. High / low in °F.
- Jan48° high26° low
- Feb48° high25° low
- Mar54° high29° low
- Apr60° high32° low
- May69° high39° low
- Jun78° high44° low
- Jul83° high53° low
- Aug82° high51° low
- Sep75° high46° low
- Oct64° high37° low
- Nov55° high29° low
- Dec47° high25° low
Where it is
- San Gabriel Mountains National Monument Ranger District · Ranger district
- Angeles National Forest · National forest
- Nearest town
- Glendora, California · 9.7 mi
Conditions
Active alerts for Angeles National Forest as of Oct 9, 2026:
Planning to Camp? (Stay Limits/Dispersed Camping Restrictions) until Dec. 15, 2026
information · posted Aug 24, 2026
Williamson Rock Area and Trail Closure
caution · posted Aug 24, 2026
Office & Visitor Center Updates - Need Info or Passes?
information · posted Aug 24, 2026
caution · posted Aug 24, 2026
caution · posted Aug 24, 2026
San Gabriel Canyon OHV Area Prohibitions
caution · posted Aug 24, 2026
San Dimas Experimental Forest Closure
caution · posted Aug 24, 2026
Fire Danger Level Elevated to "Very High"
fire-restriction · posted Aug 24, 2026
Rincon-Redbox Road (2N24) Closure
caution · posted Aug 24, 2026
Source: USFS forest alerts
Nearby
Allison Gulch TrailHikingPhoto: Michael McCarty, CC BY 2.0 (via Flickr)2.4 mi
East Fork TrailHikingPhoto: simonov, CC BY-SA 2.0 (via Flickr)2.5 mi- Heaton Flat TrailHiking2.6 mi
- Coldbrook CampgroundCamping3.9 mi
San Gabriel RiverCanoeingPhoto: Emarateyya, Muna Al Zaabi, CC BY-SA 3.0 (via Wikimedia Commons)3.9 mi- Crystal Lake BouldersRock climbing4.7 mi
- Crystal Lake Rec AreaCamping4.9 mi
- Crystal Lake CragRock climbing5.2 mi
Source: Roamze catalog (indexable pages within 10 miles, PostGIS distance)
Is Rattlesnake Peak open right now?
Alert in the area
The Forest Service lists 7 alerts for Angeles National Forest.
Rincon-Redbox Road (2N24) Closure
Agency alert covering Angeles National Forest · Order 05-01-26-13 · USFS · Angeles National Forest
Fire Danger Level Elevated to "Very High"
Agency alert covering Angeles National Forest · USFS · Angeles National Forest
San Gabriel Canyon OHV Area Prohibitions
Agency alert covering Angeles National Forest · Order 05-01-26-09 · USFS · Angeles National Forest
San Dimas Experimental Forest Closure
Agency alert covering Angeles National Forest · USFS · Angeles National Forest
Eaton Fire Area Closure
Agency alert covering Angeles National Forest · Order 05-01-26-04 · USFS · Angeles National Forest
As of · Source: USFS · Angeles National Forest. Agencies don't list every closure — check before you go.
Best time to visit Rattlesnake Peak
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.
Jan
48° / 26°
5 wet
Feb
48° / 25°
8 wet
Mar
54° / 29°
6 wet
Apr
60° / 32°
4 wet
May
69° / 39°
2 wet
Jun
78° / 44°
1 wet
Jul
83° / 53°
2 wet
Aug
82° / 51°
2 wet
Sep
75° / 46°
2 wet
Oct
64° / 37°
3 wet
Nov
55° / 29°
4 wet
Dec
47° / 25°
5 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Wrightwood, CA, 10 mi away at 6,000 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.