Right now

Temp61°F

Wind5 mph

Gusts8 mph

Humidity76.9%

Rain 48h0.03 in

Last rain1h ago

Assessment

5.7mm rain forecast

Drying Time

13% dry · 3-6h to dry

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Saturday 10 October

Poor

Temp32°F

Rain0.2 in

Wind5 mph

Gusts8 mph

Humidity77%

5.7mm 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° 0.03 in 5 — 76.9%

Sun Sunday 11 October

Poor

Temp61°F

Rain2.4 in

Wind17 mph

Gusts—

Humidity79%

60.4mm 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 19 — 85.9%

07:00 58° 0.04 in 20 — 86.4%

08:00 58° 0.04 in 13 — 91.1%

09:00 58° 0.02 in 12 — 91.1%

10:00 59° 0.01 in 13 — 91%

11:00 61° 0.02 in 19 — 81%

12:00 61° 0.01 in 19 — 81.6%

13:00 61° 0.01 in 18 — 79.2%

14:00 60° dry 19 — 76.6%

15:00 61° dry 19 — 71.7%

16:00 60° dry 17 — 69.8%

17:00 59° dry 15 — 72.7%

18:00 57° dry 15 — 76.3%

19:00 55° dry 15 — 78.8%

20:00 54° dry 12 — 79.2%

21:00 53° dry 10 — 81%

Mon Monday 12 October

Poor

Temp55°F

Rain0.04 in

Wind12 mph

Gusts—

Humidity70%

1mm 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

Time °F Rain Wind (mph) Gust Hum

06:00 49° dry 6 — 88.1%

07:00 49° dry 6 — 89.6%

08:00 52° dry 6 — 82%

09:00 54° dry 8 — 77.6%

10:00 56° dry 8 — 73.2%

11:00 57° 0.01 in 11 — 69.3%

12:00 56° 0.01 in 11 — 71.6%

13:00 57° 0.01 in 12 — 69.2%

14:00 56° 0.01 in 13 — 67%

15:00 56° 0.01 in 14 — 69.9%

16:00 55° dry 14 — 72.3%

17:00 52° dry 14 — 74.1%

18:00 50° dry 15 — 75.8%

19:00 48° dry 15 — 77.3%

20:00 47° dry 18 — 77.6%

21:00 46° dry 12 — 78.8%

Tue Tuesday 13 October

Good

Temp52°F

Raindry

Wind6 mph

Gusts—

Humidity60%

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 44° dry 2 — 71.9%

07:00 45° dry 2 — 70.8%

08:00 48° dry 2 — 66.5%

09:00 50° dry 4 — 60.2%

10:00 52° dry 6 — 60%

11:00 53° dry 6 — 60.7%

17:00 54° dry 13 — 54.6%

Wed Wednesday 14 October

Good

Temp57°F

Raindry

Wind12 mph

Gusts—

Humidity49%

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 58° dry 12 — 48.6%

17:00 59° dry 10 — 47.4%

Thu Thursday 15 October

Good

Temp61°F

Raindry

Wind15 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 61° dry 15 — 47.5%

17:00 62° dry 15 — 49.4%

Fri Friday 16 October

Good

Temp63°F

Raindry

Wind11 mph

Gusts—

Humidity50%

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 11 — 50.3%

17:00 63° dry 8 — 48.1%

Sat Saturday 17 October

Good

Temp66°F

Raindry

Wind4 mph

Gusts—

Humidity44%

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 66° dry 4 — 44.1%

17:00 67° dry 5 — 49.2%

About Jumbo Rocks

Jumbo Rocks is JTree's eastern climbing hub — a spectacular jumble of house-sized quartz-monzonite blocks around the Jumbo Rocks Campground and the tourist-famous Skull Rock formation. Rock here is 'notoriously rough, even by Joshua Tree standards' per Mountain Project, though smoother exceptions exist in Conan's Corridor and Zebra Cliffs. The area encompasses climbing within the campground and across the road, extending southeast to Zebra Cliffs. No water at the campground.

Region: Joshua Tree
Rock type: Quartz monzonite
Aspect: mixed-facing
Altitude: 4400 ft
Exposure: medium
Seepage: very-low

Other crags in this region

Cap Rock Echo Rock / Echo Cove Hidden Valley Campground Indian Cove Lost Horse Wall Quail Springs (Trashcan Rock)Real Hidden Valley Ryan Campground (Headstone Rock)Sheep Pass Split Rocks Wonderland of Rocks