Right now

Temp49°F

Wind4 mph

Gusts6 mph

Humidity67.1%

Rain 48hdry

Last rain57h ago

Assessment

Should be dry

Good friction temperature range for granite

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Saturday 10 October

Good

Temp32°F

Raindry

Wind4 mph

Gusts6 mph

Humidity67%

Should be dry

Time °F Rain Wind (mph) Gust Hum

06:00 — dry — — null%

14:00 — dry — — null%

Sun Sunday 11 October

Good

Temp64°F

Rain0.00 in

Wind8 mph

Gusts—

Humidity40%

Should be dry

Good conditions for granite

Time °F Rain Wind (mph) Gust Hum

06:00 45° dry 6 — 77.8%

07:00 46° dry 6 — 76.9%

08:00 48° dry 5 — 72%

09:00 56° dry 4 — 56.8%

10:00 59° dry 5 — 46.3%

11:00 62° dry 8 — 42.6%

12:00 64° dry 9 — 38.9%

13:00 66° dry 11 — 36.9%

14:00 66° dry 8 — 36%

15:00 65° dry 7 — 37.9%

16:00 64° dry 6 — 39.3%

17:00 63° dry 5 — 41.9%

18:00 59° dry 2 — 54.6%

19:00 54° 0.00 in 3 — 62.8%

20:00 51° dry 6 — 73.1%

21:00 52° dry 9 — 69.4%

Mon Monday 12 October

Good

Temp63°F

Raindry

Wind12 mph

Gusts—

Humidity32%

Should be dry

Good conditions for granite

Time °F Rain Wind (mph) Gust Hum

06:00 46° dry 14 — 67.5%

07:00 47° dry 13 — 64.3%

08:00 50° dry 14 — 59.1%

09:00 54° dry 16 — 51.5%

10:00 57° dry 16 — 44.2%

11:00 60° dry 14 — 38.7%

12:00 62° dry 12 — 34.4%

13:00 64° dry 10 — 30.7%

14:00 66° dry 10 — 25.8%

15:00 67° dry 11 — 22.1%

16:00 65° dry 9 — 27%

17:00 62° dry 8 — 34.4%

18:00 57° dry 5 — 45.4%

19:00 52° dry 7 — 57.2%

20:00 50° dry 6 — 61.4%

21:00 50° dry 5 — 61%

Tue Tuesday 13 October

Poor

Temp55°F

Rain0.05 in

Wind9 mph

Gusts—

Humidity59%

1.3mm rain forecast

Good conditions for granite

Time °F Rain Wind (mph) Gust Hum

06:00 41° dry 3 — 90.7%

07:00 40° dry 4 — 91.3%

08:00 42° dry 5 — 89.9%

09:00 48° dry 4 — 76.6%

10:00 52° dry 7 — 69.3%

11:00 55° 0.01 in 8 — 56.8%

12:00 57° dry 10 — 49.8%

18:00 50° 0.04 in 3 — 82.8%

Wed Wednesday 14 October

Poor

Temp41°F

Rain0.08 in

Wind4 mph

Gusts—

Humidity99%

2.1mm rain forecastHumidity 99% — likely fog/cloud

Time °F Rain Wind (mph) Gust Hum

06:00 43° 0.03 in 6 — 99.9%

12:00 41° 0.01 in 4 — 98.6%

18:00 40° 0.02 in 3 — 99.9%

Thu Thursday 15 October

Poor

Temp46°F

Rain0.03 in

Wind6 mph

Gusts—

Humidity71%

0.7mm rain forecast

Time °F Rain Wind (mph) Gust Hum

06:00 33° dry 2 — 98.5%

12:00 46° 0.01 in 6 — 70.8%

18:00 40° 0.02 in 5 — 99.9%

Fri Friday 16 October

Poor

Temp43°F

Rain0.05 in

Wind2 mph

Gusts—

Humidity92%

1.2mm rain forecastHumidity 92% — potential fog

Time °F Rain Wind (mph) Gust Hum

06:00 38° 0.01 in 3 — 99.9%

12:00 43° dry 2 — 91.6%

18:00 43° dry 2 — 95.4%

Sat Saturday 17 October

Good

Temp63°F

Raindry

Wind2 mph

Gusts—

Humidity34%

Should be dry

Good conditions for granite

Time °F Rain Wind (mph) Gust Hum

06:00 37° dry 6 — 83.7%

12:00 63° dry 2 — 34.1%

18:00 53° dry 2 — 63.7%

Bird ban (02-01 to 07-31)
The Book formation is on RMNP's 2026 raptor closure list — NPS closes all uses (climbing routes, trails, base area) roughly Feb 1 – Jul 31 for nesting golden eagle / peregrine falcon. Closures may be extended or lifted early per nesting activity. Verify current status at nps.gov/romo/raptor-closures.htm before travelling.

About The Book (Lumpy Ridge)

The Book is Lumpy Ridge's most-visited formation — a south-facing Silver Plume Granite buttress at the eastern end of the ridge, ten minutes from the Lumpy Ridge Trailhead outside Estes Park. Rock is Precambrian Silver Plume Granite (same 1.4-billion-year-old pluton as Longs Peak), riddled with vertical joint systems that make Lumpy's world-famous crack lines. Approach ~30 minutes from the trailhead. Free access — Lumpy sits outside RMNP's timed-entry fee zone. on Book and nearby formations; check current status at nps.gov/romo. For per-route beta and topos, climbers reference Bernard Gillett's *Rocky Mountain National Park: The Climbers Guide*.

Region: Lumpy Ridge
Rock type: Granite
Aspect: south-facing
Altitude: 8451 ft
Exposure: medium
Seepage: low

Other crags in this region

Sundance Buttress The Pear (Lumpy Ridge)Twin Owls