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Kentucky

When to catch Mammoth Caveat its best

Mammoth Cave through the year: wildflowers (local timing: spring (March, April, and May)) and fall foliage (local timing: starting in late October). Each has its own page with spots, sources and the latest reports.

RIGHT NOW · SEP 30

  • Latest reportNo dated report this season; the posters below show each usual window.
  • This weekend (NWS)Sat chance showers and thunderstorms, 72°F · Sun chance rain showers, 74°F
  • Park alerts2 current NPS alerts: Green River Ferry Temporarily Out of Service

When are you going?

Fall at Mammoth Cave

Where to go at Mammoth Cave

Spots, visitor points and places nearby
  • Fall
Places on this map, as a list
Map: approximate positions; state lines US Census.

Best spots

Where each event's source says to go

Wildflowers

  • Cedar Sink Trail1-mile loop down into a huge sinkhole full of spring and summer wildflowers; 295 stairsNational Park Service ↗
  • Green River Bluffs TrailNear the visitor center; wildflowers in bloom on the spring Wildflower Day hikeNational Park Service ↗
  • Echo River Spring TrailLevel walk past springs where underground rivers leave the cave for the Green RiverNational Park Service ↗

Fall foliage

Next 7 days at Mammoth Cave

Forecast: National Weather Service
  • TodaySunny88° / 65°2% rain
  • ThuMostly Sunny91° / 70°34% rain
  • FriShowers And Thunderstorms80° / 60°89% rain
  • SatChance Showers And Thunderstorms72° / 57°53% rain
  • SunChance Rain Showers74° / 51°39% rain
  • MonSunny71° / 45°1% rain
  • TueSunny72° / 48°2% rain

Heads up: Park closure: Green River Ferry Temporarily Out of Service; Park closure: Elevator for Accessible Tour Out of Service.

Today: sunrise 6:40 a.m., sunset 6:31 p.m., light until 6:57 p.m. · moon waning gibbous, 78% lit (our calculation)

Visitor reports, not verified

Been here in the last week? Tell us how the trees looked.

What color were the trees?

Tap the one that looks most like what you saw.

One report per place for each day you saw it, no name or email · How reports work · Terms · Privacy

Nearby, and when they peak

Straight-line miles; roads are longer

Towns nearby

Straight-line miles; each town page has frost dates and its nature year

Mammoth Cave in pictures

Illustrative photos, not current conditions
The view out of a large cave entrance, with falling water and green trees above the opening
Looking out from the Historic Entrance, the largest natural entrance to Mammoth Cave (date not given). Photo: NPS Photo / J. Cooper · public domain · resized

Questions people ask

When is wildflower season?

Spring, March through May, when the trail sides burst with color. Different flowers keep blooming from early March, when harbinger-of-spring appears, through October.Sources: National Park Service, Visiting Mammoth Cave in spring ↗ (opens in a new tab), National Park Service, Mammoth Cave wildflowers ↗ (opens in a new tab)

How hard is the Cedar Sink hike?

It's a 1-mile loop with about 295 stairs down into the sinkhole and back out. The trailhead is about 10 minutes from the visitor center, and its parking can fill up.Source: National Park Service, Explore Wildflowers at Cedar Sink ↗ (opens in a new tab)

Is there a wildflower event?

Yes, the park's annual Wildflower Day each spring, free, with guided wildflower hikes; in 2026 it was Saturday, April 11.Source: National Park Service, Mammoth Cave Wildflower Day ↗ (opens in a new tab)

Do I need to book cave tours in spring?

During spring break, cave tours can sell out weeks ahead, so buy tickets in advance.Source: National Park Service, Visiting Mammoth Cave in spring ↗ (opens in a new tab)

How we know

Every timing above, from these pages; checked Sep 26