Monsoonal and/or tropical precipitation is forecast to potentially impact the region on many days from 12th-24th July (at least). Monsoon rains originating in northern Mexico, drawing in additional tropical moisture to the south, are forecast to generate localized thunderstorms and possibly 0.25-0.5 inch of rain on Monday 13th July.
Hikers should be prepared for rapidly changing weather conditions in the high country in summer during tropical or monsoonal rains, the latter generally most prevalent in the afternoons. Thunderstorms with lightning, intense precipitation, and rapid temperature drops can occur in the high country even when such storms are not forecast for lower elevations.
After relatively cool weather in the first few days of July, midsummer temperatures returned from 4th July onwards, and hikers should be prepared for hot weather, especially on 14th-16th when an extreme heat watch is in effect. Please give considerable extra thought to route choice, start times, clothing, sun protection, and hydration requirements (the latter especially if your planned route does not intersect with known water sources).
The air temperature of 64.6°F (18°C) recorded at San Jacinto Peak on Thursday 9th July was by far the warmest day recorded at that location in 2026 to date, and is tied for the sixth highest air temperature ever reliably recorded at the Peak. Temperatures will generally be cooler at the highest elevations for the next two weeks due to periodic cloud and stormy weather in the region.
At this time main springs and creeks continue to flow (example photos below) and water availability is not generally a significant issue for campers or hikers. Ephemeral sources are now all functionally dry, while “perennial” water sources are at low flow rates for the time of year. Key sources such as Wellman’s Cienega, the pipe in Round Valley, the Deer Springs and North Fork crossing of Deer Springs Trail, and the creek in Little Round Valley, are flowing, and are expected to continue to do so throughout July (at a minimum). Water is flowing reliably in Tahquitz Creek at PCT Mile 177 and again further downstream at the north end of Little Tahquitz Meadow (although it is dry between those two locations). Strawberry Cienega is damp but with no reliable water source from which to filter. Middle Spring on Devil’s Slide Trail continues to just trickle. On the Desert Divide, Live Oak, Cedar, and Apache springs are all flowing gently.
Be rattlesnake aware. Above about 5000 ft elevation, the venom of Southern Pacific Rattlesnakes (Crotalus oreganus helleri) in the San Jacinto mountains is predominantly neurotoxic, almost always fatal for dogs and sometimes for humans (see my long read article linked here for further information describing the unprecedented survival of our dog Anabel after a July 2020 neurotoxic bite). Devil’s Slide Trail, lower Deer Springs and lower Marion Mountain trails, Suicide Rock, near Strawberry Cienega, and trails around Tahquitz Peak are frequent higher elevation locations for sightings, but rattlesnakes have been recorded as high as 9350 ft on Wellman Trail.
Be bear aware. Although rarely reported, up to six individually identifiable Black Bears have been observed in the San Jacinto mountains since 2017, and I have seen at least one annually for the past seven years. One 10+ year-old dark chestnut-colored adult with a right ear tag was seen multiple times between Fern Valley and the Willow Creek drainage in July-September 2025 (see for example my video from 14th September available here). This individual was relocated to the San Jacintos from Indio in May 2017. A smaller, paler, six-year-old individual was trapped at the State Park Stone Creek campground in April 2026 and fitted with a satellite collar plus colored tags in both ears. In May it ranged remarkably widely from 8500 ft on the north side of San Jacinto Peak to south of Highway 74 into the northernmost Santa Rosa Mountains (thank you to CDFW for this information). My brief videos from Devil’s Slide Trail in September 2021 (linked here) and one walking through our property in Idyllwild in 2018 (linked here) likely show other individuals. There have been no reports of negative interactions with humans in the high country, at or near wilderness campsites, or on trails.
Dark Canyon campground will not reopen this year due to staffing/budget issues, although Dark Canyon Road (the access to Seven Pines trailhead) has remained open all year.
Following superficial grading late in 2025, Black Mountain Road (4S01) is in better condition than last summer, but remains far rougher than in June 2020, the last time it was comprehensively graded. South Ridge Road is in poor condition (although not as bad as 2019) and generally requires a high clearance or AWD/4WD vehicle to reach the South Ridge trailhead at the top of the road.
Daily survey hikes by the Trail Report year-round in the San Jacinto mountains include multiple routes to the highest peaks including San Jacinto Peak typically 2-3 times per week (but almost daily during and following storm conditions), Tahquitz Peak and area at least once per week, plus a wide variety of other trails on intervening days.
WEATHER
Following relatively cool weather for the first couple of days of July, temperatures have since been seasonal or well above seasonal at all elevations. Temperature are forecast to be especially hot around Wednesday 15th July.
There is an increasing possibility of the first monsoonal/tropical precipitation of the season on 12th-18th July (at least), with the highest likelihood of rain currently on Monday 13th July between late morning and late afternoon. Forecasts have varied greatly regarding expected rainfall that day, ranging from 0.1-0.5 inch. Although forecast to be light, the rain may well be associated with thunderstorms, and therefore can be intense and highly localized.
With cloudy and potentially stormy weather, daytime high temperatures will average a little cooler for the remainder of July than on 5th-10th, however overnight low temperatures are expected to be consistently 5-10°F above average due to the humidity and the heat trapping effect of the cloud. Due to changes in the upper atmosphere, higher elevations (>9000 ft) are often disproportionately cooler than mid elevations during monsoonal/tropical conditions.
At San Jacinto Peak (10,810 ft/3295 m) on Sunday 12th July 2026 at 0830 the air temperature was 51.6°F (11°C), with a windchill temperature of 43.2°F (6°C), 78% relative humidity, and a pleasantly cool SE breeze sustained at 8 mph gusting to 16.4 mph. Occasional very light drizzle accompanied heavily overcast skies.
At the Peak on Thursday 9th July 2026 at 0810 the air temperature was 64.6°F (18°C), with a “windchill” temperature of 62.4°F (17°C), 13% relative humidity, and a very light WNW breeze sustained at 2 mph gusting to 4.0 mph. This was by far the warmest day recorded at the Peak in 2026 to date, and is the sixth highest air temperature ever reliably recorded at San Jacinto Peak.
At the Peak on Monday 6th July 2026 at 0815 the air temperature was 53.7°F (12°C), with a “windchill” temperature of 47.7°F (9°C), 56% relative humidity, and an erratic SSW wind sustained at 8 mph gusting to 13.4 mph.
TRAIL CONDITIONS
The Pacific Crest Trail and all high country trails were functionally clear of snow by late April.
Deer Springs Trail from the trailhead to Little Round Valley has already been cleared of the handful of blowdowns from this past winter by the Trail Report.
Trail maintenance work by USFS and State Park volunteers this spring has Willow Creek Trail clear of blowdowns from this past winter.
The Caramba Trail from near Reeds Meadow through Laws Camp and on to Caramba, and the Cedar Trail from Willow Creek Trail to Laws, are euphemistically (and perhaps dangerously) described by the Forest Service as “not maintained”. In reality both trails have been abandoned for more than a decade and no longer exist. They are so heavily overgrown, largely with dense whitethorn which obscures several hundred downed trees, that hikers should not attempt to follow them (regardless of how much you may trust any particular app).
An informal use trail to Laws is much more direct, generally well maintained, and avoids the bushwhacking of the abandoned trails (some local Idyllwild hikers dubbed it the “King Trail” when I established the route in 2019). It leaves Willow Creek Trail exactly 1.0 mile from Saddle Junction, 0.46 mile from the Skunk Cabbage turning (trailhead at N 33.7796, W 116.6590). The route is marked with cairns (and subtle flagging to aid USFS work crews) and descends following former deer trails for 1.2 miles, meeting Willow Creek about 0.15 mile upstream from the site of the historic Laws Camp (the remains of which were destroyed by the 2013 Mountain Fire and subsequent flood and treefall damage). Blowdowns from this winter have already been removed by the Trail Report, and the huge pine tree that fell in late 2024 was kindly removed by Forest Service volunteers in May 2026.
East from Laws the old Caramba Trail is initially heavily obscured by blowdowns and thick regrowth, but the easternmost 1.5 miles closest to Caramba camp is often well marked with cairns placed by myself and others. Much of the old trail rock work is visible in places. The first mile east of Laws is currently marked largely along the former trail route with orange flagging (for use by USFS work crews), although it is not recommended to follow this in some areas as it goes directly through blowdowns and obstructive vegetation, not around them.
Work to rehabilitate the original Caramba Trail started in June this year – combining the Trail Report, other volunteers, and Forest Service employees – almost exactly 13 years after it burned in the Mountain Fire. Unsurprisingly it is proving to be a very slow process and it is possible that a couple of years of work may be required to fully rehabilitate the old trail route. Please do not remove, move, or (as described above) attempt to follow, flagging in this area which has been placed to guide USFS work crews.
The Trail Report “adopted” Seven Pines Trail as a priority for maintenance work due to a disproportionate number of lost hiker rescues (with the agencies evidently no longer maintaining the route). In the past seven years we have removed 101 downed trees and the trail is largely trimmed and cleared annually. Thankfully only two large blowdowns affected the trail this past winter, and both now have very easy workarounds. Although our work has restored this delightful trail to its best condition in well over 20 years, Seven Pines remains a genuine wilderness trail very unlike the wider, bare, obvious routes of, for example, Devil’s Slide or Marion Mountain trails. Cautious navigation remains invaluable for those without extensive experience of hiking this trail.
Spitler Peak Trail is clear of treefall hazards, despite having been decimated by about 65 new blowdowns in mid February storms. In February-March the Trail Report cut almost all of these, bringing to 235 the number of trees we have removed from this trail in the past seven years. The remaining four large cedars were removed by Forest Service at the end of March.
The San Jacinto Trail Report celebrates ten years of operation in 2026. The Report has helped tens of thousands of hikers, and saved multiple lives, both directly and indirectly. Since the Report became established online, snow/ice rescues in the San Jacinto Mountains have dropped 82%, with an additional benefit of saving Riverside County hundreds of thousands of dollars. While all time is volunteered, the Report uses small private donations to help cover operating costs. Donations keep the Report available to all, free from advertising or paywalls, and independent from agencies. If you have found this Report useful, please consider using this link to the Donate page. Thank you very much for your support.
San Jacinto Trail Report 