William Obrien State Park campground
William Obrien State Park
Reservations are accepted at William O'Brien State Park, ensuring campers have a guaranteed spot during their visit. It is recommended to make reservations in advance, especially during peak camping season. Speaking of the best time to visit, the park is open year-round, but the peak season is during the summer months when the weather is pleasant for outdoor activities. However, the fall season offers beautiful foliage colors, making it another popular time to visit.
When camping at William O'Brien State Park, there are a few things to be mindful of. The park is known for its abundance of mosquitoes, so it is advisable to bring insect repellent. Additionally, it is important to be cautious of wildlife encounters, such as raccoons and squirrels, and to store food properly to prevent any unwanted interactions. Overall, William O'Brien State Park offers a wonderful camping experience in a beautiful natural setting, with ample amenities and activities to enjoy throughout the year.
What's on-site at William Obrien State Park
Key facilities Snoflo tracks for this campground. Confirm with the operator before booking -- amenities can change seasonally.
Plan your trip down to the hour
Same weather feed Snoflo's iOS app uses -- updated continuously from NOAA / yr.no.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max so trends jump out at a glance.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks. Hover any point for the full breakdown.
Other campgrounds in the area
Snoflo-tracked campsites within driving distance of William Obrien State Park, with reservations status.
| Campground | Reservations | Toilets | View |
|---|---|---|---|
| Riverside Group Camp | ✗ | ✗ | → |
| Wm Obrien State Park | ✗ | ✗ | → |
| Wedge Hill Group Camp | ✗ | ✗ | → |
| Riverway Campground | ✗ | ✗ | → |
| Savanna Campground | ✗ | ✗ | → |
Nearby streamflow
USGS streamgauges within reach of William Obrien State Park -- pulled live from the National Water Information System.
| Streamgauge | Discharge | View |
|---|---|---|
| St. Croix River At St. Croix Falls | 3,150 cfs | → |
| Willow River @ Willow R State Park Nr Burkhardt | 130 cfs | → |
| Mississippi River At St. Paul | 14,100 cfs | → |
| Mississippi River Near Anoka | 7,750 cfs | → |
| Kinnickinnic River Near River Falls | 95 cfs | → |
| Shingle Creek At Queen Ave In Minneapolis | 16 cfs | → |
Nearby snow depths
NRCS SNOTEL stations within reach of William Obrien State Park -- relevant when planning a shoulder-season or alpine trip.
| SNOTEL station | Snowpack | 24h Snowfall | View |
|---|---|---|---|
| Forest Lake 5ne | 0.0 in | 0.0 in | → |
| St Croix Falls | 0.0 in | 0.0 in | → |
| Wild River State Park | 0.0 in | 0.0 in | → |
| Baldwin | 0.0 in | 0.0 in | → |
| Hastings Dam 2 | 0.0 in | 0.0 in | → |
| Cumberland | 0.0 in | 0.0 in | → |
Plan a longer trip
The closest parks, lakes, boat launches, and paddle runs so a camping night can grow into a full weekend.
Parks
- William O'Brien State Park
- Leonard Wojtowicz Skating Park
- Square Lake Park
- Big Marine Park Reserve
- Saint Croix Islands Wildlife Area
- Pine Point Park
Camping essentials & Leave No Trace
- Pack it in, pack it out
- Take all trash, food scraps, and gear back with you to keep campsites clean and protect wildlife.
- Respect wildlife
- Observe animals from a distance, store food securely, and never feed wildlife to maintain natural behavior and safety.
- Know before you go
- Check weather, fire restrictions, trail conditions, and permit requirements to ensure a safe and well-planned trip.
- Minimize campfire impact
- Use established fire rings, keep fires small, fully extinguish them, or opt for a camp stove when fires are restricted.
- Leave what you find
- Preserve natural and cultural features by avoiding removal of plants, rocks, artifacts, or other elements of the environment.
Set push alerts in the Snoflo app
Save William Obrien State Park as a favorite, set a custom threshold (precipitation, snowpack, freezing temperatures), and the iOS app will push the moment conditions cross.
About William Obrien State Park
Can I make reservations at William Obrien State Park?
Yes -- this campground accepts reservations. Snoflo recommends booking early for peak season; check the operator (Recreation.gov / state park system / private operator) for the booking window and cancellation policy.
How fresh is the weather data on this page?
The hourly forecast updates throughout the day from the NOAA / yr.no public feeds. Streamflow data is pulled live from USGS streamgauges and snowpack from the NRCS SNOTEL network.
What's the best time of year to visit?
Use the 15-day temperature & precipitation outlook on this page to plan -- pick a window with comfortable temperatures and low precipitation. For longer trips, the 5-day hourly meteogram shows snow + rain accumulation hour-by-hour.
How do I get to William Obrien State Park?
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 campground.
Can I get alerts when conditions change?
Yes -- alerts are managed through the Snoflo iOS app. Favorite this campground, set a threshold (temperature, snowpack, precipitation), and you'll get a push the moment it crosses.
Other campgrounds near here
Snoflo-tracked campgrounds within driving distance of William Obrien State Park.