Thumb campground
Thumb
An interesting fact about the Thumb Camping Area is that it is named after the unique rock formation that resembles a thumb on the lake's shoreline. The best time to visit is during the summer months between June and August when the average temperatures range from 70°F to 80°F. However, visitors can also enjoy the fall foliage during September and October when the temperatures range from 50°F to 70°F.
Overall, the Thumb Camping Area is an excellent spot for anyone looking to immerse themselves in nature while enjoying a breathtaking view of the lake and surrounding mountains.
What's on-site at Thumb
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 Thumb, with reservations status.
| Campground | Reservations | Toilets | View |
|---|---|---|---|
| Skunk Creek | ✗ | ✗ | → |
| Rustlers | ✗ | ✗ | → |
| Loggers | ✗ | ✗ | → |
| Homestead | ✗ | ✗ | → |
| Falcon's Nest | ✗ | ✗ | → |
Nearby streamflow
USGS streamgauges within reach of Thumb -- pulled live from the National Water Information System.
| Streamgauge | Discharge | View |
|---|---|---|
| Big Sulphur C Nr Cloverdale Ca | 45 cfs | → |
| Russian R Nr Cloverdale Ca | 139 cfs | → |
| Dry C Nr Geyserville Ca | 200 cfs | → |
| Russian R A Geyserville Ca | 180 cfs | → |
| Dry C Blw Lambert Br Nr Geyserville Ca | 73 cfs | → |
| Big Sulphur C A G Resort Nr Cloverdale Ca | 12 cfs | → |
Plan a longer trip
The closest parks, lakes, boat launches, and paddle runs so a camping night can grow into a full weekend.
🌳 Parks
- Furber Park
- Cloverdale City Park
- Citrus Fairgrounds
- Tarman Park
- Lake Sonoma Recreational Area
- Barbieri Brothers Park
⚓ Boat launches
- Fisherman's Trail Sonoma County
- Public Boat Ramp Spur Sonoma County
- 3rd Street 20, Lakeport
- Lake County
🎣 Fishing spots
More fishing →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 Thumb as a favorite, set a custom threshold (precipitation, snowpack, freezing temperatures), and the iOS app will push the moment conditions cross.
About Thumb
Can I make reservations at Thumb?
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 Thumb?
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 Thumb.