Flatirons (Royal Arch)

Moderate

Boulder

Best time of year

JanFebMarAprMayJunJulAugSepOctNovDec

Peak season now · Year-round, peak Apr–May, Sep–Oct

Year-round. Icy in winter and hot on midsummer afternoons.

Peak In season Out of season This month

Boulder's iconic Flatirons. Royal Arch viewpoint is the highlight.

🚫 No dogs

66°F

⛅ Overcast

💨 6 mph

🌧️ 1%

☀️ UV 5

Thu

⛅

71°

57°

23%

Fri

🌧️

61°

54°

53%

Sat

⛅

81°

56°