Climbing Forecast › Joshua Tree › Lost Horse Wall

JOSHUA TREE · QUARTZ MONZONITE

Lost Horse Wall weather & climbing conditions

Poor — wet, too windy or closed

Right now

Temp61°F
Wind3 mph
Gusts4 mph
Humidity79.3%
Rain 48h0.04 in
Last rain1h ago

Assessment

6.7mm rain forecast

Drying Time

8% dry · 5-9h to dry

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Saturday 10 October
Poor
Temp32°F
Rain0.3 in
Wind3 mph
Gusts4 mph
Humidity79%
6.7mm rain forecast
  • Wet quartz monzonite is slick — dries within an hour or two of a shower in desert conditions
Time °F Rain Wind (mph) Gust Hum
13:00 — dry — — null%
21:00 61° 0.04 in 3 — 79.3%
Sun Sunday 11 October
Poor
Temp61°F
Rain2.0 in
Wind19 mph
Gusts—
Humidity81%
51.8mm rain forecast
  • Good friction range for quartz monzonite
  • Wet quartz monzonite is slick — dries within an hour or two of a shower in desert conditions
  • Even mild humidity dulls the polished patina crimps and slopers — best days are cold and dry
  • Breezy — helps drying
Time °F Rain Wind (mph) Gust Hum
06:00 59° dry 21 — 93.2%
07:00 59° 0.02 in 22 — 87.6%
08:00 58° 0.03 in 17 — 89.3%
09:00 58° 0.03 in 16 — 90.5%
10:00 59° 0.02 in 15 — 91.2%
11:00 61° 0.03 in 17 — 86.5%
12:00 60° 0.02 in 17 — 89.6%
13:00 61° dry 21 — 82.6%
14:00 60° dry 22 — 78.1%
15:00 61° dry 22 — 71.6%
16:00 60° dry 21 — 67.9%
17:00 59° dry 18 — 70.7%
18:00 57° dry 17 — 75.2%
19:00 55° dry 17 — 77.9%
20:00 54° dry 15 — 79.8%
21:00 53° dry 13 — 81.9%
Mon Monday 12 October
Poor
Temp55°F
Rain0.07 in
Wind14 mph
Gusts—
Humidity74%
1.9mm rain forecast
  • Good friction range for quartz monzonite
  • Wet quartz monzonite is slick — dries within an hour or two of a shower in desert conditions
  • Even mild humidity dulls the polished patina crimps and slopers — best days are cold and dry
  • Breezy — helps drying
Time °F Rain Wind (mph) Gust Hum
06:00 50° dry 8 — 87.8%
07:00 50° dry 7 — 89.3%
08:00 52° dry 9 — 85.1%
09:00 54° dry 13 — 81.2%
10:00 56° 0.01 in 13 — 76.5%
11:00 56° 0.01 in 13 — 73.6%
12:00 55° 0.01 in 13 — 74.1%
13:00 56° 0.01 in 13 — 71.2%
14:00 56° 0.02 in 15 — 72%
15:00 55° 0.02 in 18 — 73.1%
16:00 54° 0.01 in 17 — 77.3%
17:00 52° dry 16 — 78%
18:00 49° dry 17 — 77%
19:00 48° dry 18 — 79.3%
20:00 47° dry 18 — 81.5%
21:00 46° dry 12 — 84.9%
Tue Tuesday 13 October
Good
Temp52°F
Raindry
Wind6 mph
Gusts—
Humidity66%
Should be dry
  • Good friction range for quartz monzonite
  • Quartz monzonite gives bombproof friction when dry — coarse grain shreds fingertips, bring tape
Time °F Rain Wind (mph) Gust Hum
06:00 45° dry 2 — 77.6%
07:00 45° dry 2 — 79%
08:00 48° dry 4 — 70.8%
09:00 50° dry 4 — 67.4%
10:00 52° dry 6 — 68.2%
11:00 53° dry 6 — 64.4%
17:00 55° dry 13 — 54.2%
Wed Wednesday 14 October
Good
Temp59°F
Raindry
Wind11 mph
Gusts—
Humidity48%
Should be dry
  • Good friction range for quartz monzonite
  • Quartz monzonite gives bombproof friction when dry — coarse grain shreds fingertips, bring tape
Time °F Rain Wind (mph) Gust Hum
11:00 59° dry 11 — 47.9%
17:00 60° dry 9 — 46.7%
Thu Thursday 15 October
Good
Temp63°F
Raindry
Wind13 mph
Gusts—
Humidity48%
Should be dry
  • Good friction range for quartz monzonite
  • Quartz monzonite gives bombproof friction when dry — coarse grain shreds fingertips, bring tape
  • Breezy — helps drying
Time °F Rain Wind (mph) Gust Hum
11:00 62° dry 13 — 47.8%
17:00 62° dry 15 — 50.8%
Fri Friday 16 October
Good
Temp63°F
Raindry
Wind9 mph
Gusts—
Humidity52%
Should be dry
  • Good friction range for quartz monzonite
  • Quartz monzonite gives bombproof friction when dry — coarse grain shreds fingertips, bring tape
Time °F Rain Wind (mph) Gust Hum
11:00 62° dry 9 — 51.6%
17:00 64° dry 6 — 49.6%
Sat Saturday 17 October
Good
Temp68°F
Raindry
Wind2 mph
Gusts—
Humidity43%
Should be dry
  • Quartz monzonite gives bombproof friction when dry — coarse grain shreds fingertips, bring tape
Time °F Rain Wind (mph) Gust Hum
11:00 68° dry 2 — 43.2%
17:00 68° dry 4 — 50.3%

About Lost Horse Wall

Lost Horse Wall is one of JTree's tallest single walls — a southwest-facing sweep of clean quartz monzonite about 300 yards from Lost Horse Road, downstream of Real Hidden Valley and the Brown Wall. The southwest aspect means it's sunny most of the day and dries almost immediately after the rare desert shower — ideal winter destination. Short approach from Lost Horse trailhead.

Region
Joshua Tree
Rock type
Quartz monzonite
Aspect
south-west-facing
Altitude
4101 ft
Exposure
medium
Seepage
very-low

Other crags in this region

Cap RockEcho Rock / Echo CoveHidden Valley CampgroundIndian CoveJumbo RocksQuail Springs (Trashcan Rock)Real Hidden ValleyRyan Campground (Headstone Rock)Sheep PassSplit RocksWonderland of Rocks