Park

Cahokia Mounds State Historic Site park

Mississippi, USA Upper Mississippi-Meramec watershed 38.645°, -90.078°
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Cahokia Mounds State Historic Site -- Mississippi park
Cahokia Mounds State Historic Site Mississippi · Upper Mississippi-Meramec watershed
About this park

Cahokia Mounds State Historic Site

Cahokia Mounds State Historic Site, located in Collinsville, Illinois, not Mississippi, is a fascinating site for those interested in ancient Native American civilizations. It was once home to the largest pre-Columbian settlement north of Mexico and is now a UNESCO World Heritage Site. Visitors can explore the site’s 80 mounds, including the towering Monk’s Mound and the Woodhenge ceremonial circle, as well as the Interpretive Center, which houses exhibits and artifacts from Cahokia’s past.

Some good reasons to visit Cahokia Mounds State Historic Site include the opportunity to learn about a lesser-known but incredibly important part of American history, the chance to see impressive archaeological structures and artifacts, and the beautiful natural surroundings.

Specific points of interest to see include Monk’s Mound, which stands at 100 feet tall and was once the center of the ancient city; the Woodhenge, a circle of wooden posts believed to have been used for astronomical observations and ceremonies; and the Interpretive Center, which provides a wealth of information about the site and its history.

Interesting facts about the area include that it was inhabited from about 700 to 1400 CE and that it covered an area of approximately six square miles. The site was likely home to as many as 20,000 people at its peak, making it one of the largest cities in the world at the time.

The best time of year to visit Cahokia Mounds State Historic Site is in the spring or fall, when the weather is mild and the foliage is at its most beautiful. Summer can be quite hot and humid, while winter can be cold and snowy.
StateMississippi
WatershedUpper Mississippi-Meramec
Latitude38.6450°
Longitude-90.0778°
Land designation

Park & land designation reference

A quick legend for the federal and state land categories Snoflo tracks. Each designation comes with different rules around access, recreation, and resource extraction.

National Park
Large protected natural areas managed by the federal government to preserve significant landscapes, ecosystems, and cultural resources; recreation is allowed but conservation is the priority.
State Park
Public natural or recreational areas managed by a state government, typically smaller than national parks and focused on regional natural features, recreation, and education.
Local Park
Community-level parks managed by cities or counties, emphasizing recreation, playgrounds, sports, and green space close to populated areas.
Wilderness Area
The highest level of land protection in the U.S.; designated areas where nature is left essentially untouched, with no roads, structures, or motorized motorized access permitted.
National Recreation Area
Areas set aside primarily for outdoor recreation (boating, hiking, fishing, often around reservoirs, rivers, or scenic landscapes); may allow more development.
National Conservation Area (BLM)
BLM-managed areas with special ecological, cultural, or scientific value; more protection than typical BLM land but less strict than Wilderness Areas.
State Forest
State-managed forests focused on habitat, watershed, recreation, and sustainable timber harvest.
Bureau of Land Management (BLM) Land
Vast federal lands managed for mixed use -- recreation, grazing, mining, conservation -- with fewer restrictions than national parks or forests.
Detailed forecast

Plan your visit down to the hour

Same weather feed Snoflo's iOS app uses -- updated continuously from NOAA / yr.no.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Stay nearby

Area campgrounds

Snoflo-tracked campgrounds within reach of Cahokia Mounds State Historic Site, with reservations status.

Campground Reservations Toilets View
Horseshoe Lake Recreation Area
Scott Afb Military
Around the spot

Plan a longer trip

The closest parks, lakes, fishing spots, and POIs so a park visit can grow into a full weekend.

Responsible recreation & Leave No Trace

Know before you go
Check the operator's site for hours, permit requirements, seasonal closures, and fire restrictions before heading out.
Stay on trail
Stick to marked paths to protect vegetation, prevent erosion, and avoid disturbing wildlife habitat.
Respect wildlife
Observe from a distance, never feed wildlife, and store food securely if camping is permitted on-site.
Pack it in, pack it out
Carry out all trash, food scraps, and gear. Many parks have limited or no trash service.
Leave what you find
Don't take rocks, plants, or artifacts. They make the park what it is for the next visitor.

Set push alerts in the Snoflo app

Save Cahokia Mounds State Historic Site as a favorite, set a custom threshold (precipitation, freezing temperatures, fire-restriction days), and the iOS app will push the moment conditions cross.

FAQ

About Cahokia Mounds State Historic Site

What can I do at Cahokia Mounds State Historic Site?

Most Snoflo-tracked parks support hiking, picnicking, and wildlife viewing. Check the operator's site for activity-specific rules (camping, fishing, paddling, hunting).

How fresh is the weather data?

The hourly forecast updates throughout the day from NOAA / yr.no. Streamflow comes live from USGS streamgauges.

When is the best time to visit?

Use the 15-day temperature & precipitation outlook on this page to plan -- pick a window with comfortable temperatures and low precipitation.

How do I get to Cahokia Mounds State Historic Site?

Tap Directions in the hero above to open driving directions in Google Maps, or Open in map to center the Snoflo interactive map on the park.

Can I get alerts when conditions change?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this park, set a threshold (temperature, precipitation), and you'll get a push the moment it crosses.

More parks

Other parks near here

Snoflo-tracked parks within driving distance of Cahokia Mounds State Historic Site.