Portal Forebay campground
Portal Forebay
Reservations are not accepted at Portal Forebay camping area, and campsites are available on a first-come, first-served basis. Therefore, it is advisable to arrive early, especially during peak seasons, to secure a spot. The best time of year to visit the campground is during the summer months when the weather is pleasant and conducive to outdoor activities such as fishing, hiking, and wildlife viewing.
While camping at Portal Forebay, visitors should be cautious of potential wildlife encounters, particularly bears. Proper food storage and disposal techniques are essential to prevent any unwanted interactions. Additionally, campers are advised to bring insect repellent as mosquitoes can be prevalent in the area. Overall, Portal Forebay camping area provides a serene and picturesque setting for nature enthusiasts to enjoy the beauty of California's outdoors.
What's on-site at Portal Forebay
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 Portal Forebay, with reservations status.
| Campground | Reservations | Toilets | View |
|---|---|---|---|
| Portal Forebay Campground | ✗ | ✗ | → |
| Bolsillo Campground | ✓ | ✗ | → |
| Mono Hot Springs | ✓ | ✓ | → |
| Mono Hot Springs Campground | ✓ | ✗ | → |
| Badger Flat Group Campground | ✓ | ✗ | → |
Nearby streamflow
USGS streamgauges within reach of Portal Forebay -- pulled live from the National Water Information System.
| Streamgauge | Discharge | View |
|---|---|---|
| Mf San Joaquin R Nr Mammoth Lakes Ca | 480 cfs | → |
| Hot C A Flume Nr Mammoth Lakes Ca | 62 cfs | → |
| Nf Willow C Nr Sugar Pine Ca | 416 cfs | → |
| Deadman C A Big Springs Nr Crestview Ca | 39 cfs | → |
| Big C Div Nr Fish Camp Ca | 0 cfs | → |
| Merced R A Happy Isles Bridge Nr Yosemite Ca | 1,320 cfs | → |
Nearby snow depths
NRCS SNOTEL stations within reach of Portal Forebay -- relevant when planning a shoulder-season or alpine trip.
| SNOTEL station | Snowpack | 24h Snowfall | View |
|---|---|---|---|
| Nohrsc Kaiser Point | 0.7 in | -0.7 in | → |
| Huntington Lake | 1.5 in | 0.0 in | → |
| Upper Burnt Corral Meadow | 17.8 in | -0.1 in | → |
| Nohrsc Tamarack Summit | 0.9 in | -0.1 in | → |
| Nohrsc Graveyard Meadow | 0.7 in | 0.0 in | → |
| Nohrsc Green Mtn | 6.1 in | 0.5 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
- Wilderness Ansel Adams
- Wilderness Kaiser
- Wilderness Dinkey Lakes
- Wildlife Area Kinsman Flat
- Devils Postpile National Monument
- Mammoth Creek Community Park
Boat launches
- Lake Edison Boating Site
- Florence Lake Boating Site
- Florence Lake Campground
- Huntington Boat Ramp & Launching Site
- Mammoth Pool Rd, California
- Redinger Boating Site
Fishing spots
Points of interest
- Vermillion View Observation Site
- Blue Canyon Vista Observation Site
- Devils Postpile Formation
- Visitor Contact / Ranger Station
- Minaret Vista Observation Site
- Mammoth Lakes Welcome Center
Paddle runs
- Blarney Meadows To South End Of Florence Lake
- Hot Springs Area To West End Of Blarney River
- Confluence With North Fork San Joaquin River To Hells Half Acre
- Northwest Boundary Of Nf/Kings Canyon Np To Hot Springs Area
- Rainbow Falls To Confluence With North Fork San Joaquin River
- Cora Creek To Confluence With San Joaquin River
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 Portal Forebay as a favorite, set a custom threshold (precipitation, snowpack, freezing temperatures), and the iOS app will push the moment conditions cross.
About Portal Forebay
Can I make reservations at Portal Forebay?
This campground does not appear to accept reservations -- it's typically first-come, first-served. Arrive early on summer weekends.
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 Portal Forebay?
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 Portal Forebay.