Camping Area

Three Island Crossing State Park campground

Idaho, USA 42.945°, -115.318°
Today high
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Tonight low
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Reservations
Yes
Nearby campsites
6
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Three Island Crossing State Park -- Idaho campground
Three Island Crossing State Park Idaho
About this campground

Three Island Crossing State Park

Three Island Crossing State Park camping area is located in Glenns Ferry, Idaho, along the Snake River. The park offers breathtaking views of the surrounding mountains and the Snake River, making it a popular destination for nature lovers and photographers.

The park is close to several nearby points of interest, including the Oregon Trail Interpretive Center, the Bruneau Dunes State Park, and the Hagerman Fossil Beds National Monument. Visitors can also enjoy fishing, hiking, and rafting in the area.

The campground amenities include showers, restrooms, picnic areas, and fire pits. The camping area is first-come, first-served, with a total of 85 campsites available. There are also group sites available for large groups.

An interesting fact about the area is that it was a famous crossing point on the Oregon Trail for pioneers. The park has a historic site where visitors can learn about the history of this landmark.

The best time of year to visit Three Island Crossing State Park camping area is from May to September, with average temperatures ranging from 70°F to 90°F during the day and 40°F to 60°F at night. However, visitors should be aware of high winds in the area during the summer months.
StateIdaho
Latitude42.9453°
Longitude-115.3180°
Amenities

What's on-site at Three Island Crossing State Park

Key facilities Snoflo tracks for this campground. Confirm with the operator before booking -- amenities can change seasonally.

📅
Reservations
Available
🚽
Toilets
Not listed
🚿
Showers
On site
🔥
Fire rings
Check rules
Detailed forecast

Plan your trip 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. 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
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks. Hover any point for the full breakdown.

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Nearby campgrounds

Other campgrounds in the area

Snoflo-tracked campsites within driving distance of Three Island Crossing State Park, with reservations status.

Live water

Nearby streamflow

USGS streamgauges within reach of Three Island Crossing State Park -- pulled live from the National Water Information System.

Snowpack

Nearby snow depths

NRCS SNOTEL stations within reach of Three Island Crossing State Park -- relevant when planning a shoulder-season or alpine trip.

SNOTEL station Snowpack 24h Snowfall View
Glenns Ferry 0.0 in 0.0 in
Nohrsc Camas Creek Divide 0.0 in 0.0 in
Camas Creek Divide 0.0 in 0.0 in
Nohrsc Prairie 0.0 in 0.0 in
Nohrsc Soldier R.S. 2.0 in 0.0 in
Soldier R.S. 1.0 in -1.0 in

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 Three Island Crossing State Park as a favorite, set a custom threshold (precipitation, snowpack, freezing temperatures), and the iOS app will push the moment conditions cross.

FAQ

About Three Island Crossing State Park

Can I make reservations at Three Island Crossing 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 Three Island Crossing 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.

More camping

Other campgrounds near here

Snoflo-tracked campgrounds within driving distance of Three Island Crossing State Park.