🌤 Weather at Graham Cave State Park by season
| Spring | Summer | Fall | Winter |
|---|---|---|---|
| 33–73 °F | 62–86 °F | 33–78 °F | 20–42 °F |
Each range runs from the coldest monthly average low to the warmest monthly average high in that season (1991-2020 climate normals), measured at Fulton, 20 mi away, elevation 770 ft. Conditions at the park can differ from the station, especially where elevation differs — check a forecast before you go.
Graham Cave State Park is a public state park in Missouri near Montgomery City in Montgomery County. Spanning 386 acres and established in 1964, this park offers a peaceful retreat into nature for visitors of all ages.
Quick Facts
| State | Missouri |
| Nearest City | Montgomery City |
| County | Montgomery |
| Park Size | 386 acres |
| Established | 1964 |
| Google Rating | ⭐ 4.4/5 (400 reviews) |
Location & Getting There
Graham Cave State Park is located near Montgomery City, Missouri. The park’s coordinates are 38.9066, -91.5772.
Things to Do
Missouri state parks protect an impressive variety of Ozark landscapes — spring-fed rivers with crystal-clear water, dramatic shut-ins (narrow volcanic rock gorges), extensive cave systems, forested bluffs along the Ozark Trail, and managed prairies. Activities include hiking some of the Midwest’s most scenic trails, swimming and floating in cold, clear Ozark springs and rivers, fishing for trout in spring-fed streams, camping in forested river valleys, caving on guided tours, mountain biking, horseback riding, kayaking, and exploring Civil War and frontier-era historic sites. Missouri’s springs — including Big Spring and Alley Spring — are among the largest and most beautiful in the country.
Best Time to Visit
Missouri parks are a three-season destination with winter hiking as abonus. Spring (March–May) brings dogwood and redbud blooms, rushing waterfalls, and comfortable temperatures. Summer (June–August) is peak season for floating, swimming, and camping — the Current and Jacks Fork Rivers are iconic summer float trips. Fall (September–November) delivers excellent Ozark foliage peaking mid-October, with comfortable hiking weather. Winter offers peaceful trail experiences and is ideal for cave tours (caves maintain 56°F year-round). All Missouri state parks are free — no entrance fees or vehicle passes required.
Visitor Tips
All Missouri state parks are free to visit — no entrance fees or vehicle permits required. Camping fees are modest and vary by facility. Reservations are made through mostateparks.com. Cave tours at parks like Onondaga Cave, Meramec Caverns, and Ozark Caverns require separate tickets and often sell out on weekends — reserve in advance. Float trip parks along the Current and Jacks Fork Rivers get very busy on summer weekends. Cell service is limited in the Ozarks backcountry.
Explore More Missouri State Parks
Graham Cave State Park is one of many outstanding state parks in Missouri. Discover more parks in our Best State Parks in Missouri guide, or use our Park Finder to search by activity, location, or features.
Wildlife & Nature
Graham Cave SP — features a sandstone cave with evidence of human habitation dating back 10,000 years — one of the earliest known human shelters in North America. The park’s Ozark forest, creek, and bluffs support white-tailed deer, wild turkeys, and barred owls. Box turtles cross the trails.
Nearby Attractions
Montgomery City — adjacent. Katy Trail SP — 15 miles south. Mark Twain Lake — 40 miles north. Columbia — 40 miles west.
Make it a road trip: Pair a visit with Deutschheim State Historic Site (within about an hour’s drive) or Nathan and Olive Boone Homestead State Historic Site (within about an hour’s drive).
⛺ Camping at Graham Cave State Park: Campgrounds & Cabins
| Campsites | Basic and electric campsites in a wooded area of the park. |
|---|---|
| Pets | Maximum two dogs per site recommended; must be supervised and kept on leashes no longer than 10 feet at all times. |
| Reservations | Reservable up to 12 months in advance via icampmo1.usedirect.com or toll-free 877-ICampMO (877-422-6766); walk-up registration available if sites unreserved during season. |
| Special sites | Dump station, laundry facilities (Apr 1-Oct 31), vault toilets on-site; EV charging available for $5 fee, max 1 hour; camping limited to 15 days within any 30-consecutive-day period. |
| Season notes | Year-round; on-season April 1-October 31 (showers/water available); off-season November-March (first-come, first-served; bring potable water). |
Camping questions about Graham Cave State Park
Can you camp at Graham Cave State Park?
Basic and electric campsites in a wooded area of the park.
How do you reserve a campsite at Graham Cave State Park?
Reservable up to 12 months in advance via icampmo1.usedirect.com or toll-free 877-ICampMO (877-422-6766); walk-up registration available if sites unreserved during season.
Are pets allowed at the Graham Cave State Park campground?
Maximum two dogs per site recommended; must be supervised and kept on leashes no longer than 10 feet at all times.
Source: mostateparks.com (verified July 2026). Details change seasonally — confirm when booking.
🐾 Dogs & Pets at Graham Cave State Park
- Pets allowed? statewide rule
- Responsible pet owners and their pets are welcome in Missouri state parks and historic sites, with pets leashed and under control.
- Leash rule statewide rule
- Leash not longer than 10 feet required at all times; portable fences and shock collars do not satisfy the requirement.
- Beaches & swim areas statewide rule
- Pets are not allowed in public swimming areas or on beaches.
- Cabins & lodging statewide rule
- The 'Cabins for Canines' program opens about 30% of lodging units to dogs (max two dogs per unit) at roughly 15 participating parks including Lake of the Ozarks, Bennett Spring, Echo Bluff and Roaring River; per-dog per-night fee varies by unit type.
- Pet fees statewide rule
- No day-use pet fee; Cabins for Canines charges a per-dog, per-night lodging fee (varies by unit).
- Statewide exceptions statewide rule
- Maximum two dogs per campsite; pets not allowed inside any park building.
Are dogs allowed at Graham Cave State Park?
Responsible pet owners and their pets are welcome in Missouri state parks and historic sites, with pets leashed and under control. Individual parks can post stricter rules — check signage on arrival.
Rules verified July 2026 via mostateparks.com. More: Missouri state parks guide · Dog rules in all 50 states compared
Park Location
Plan your gear for Graham Cave State Park
From our editorial guides, matched to this park’s activities:
