Current conditions for popular backcountry routes. Updated daily from NWS, SNOTEL, avalanche.org, and USGS.
Cascades, WA
Excellent window for the Enchantments traverse. Weather is stable and sunny all three days with no fires, no avalanche concerns, and normal stream flows. Get your permit sorted and go.
Cascades, WA
Snow is the story on the Wonderland Trail right now — 31 inches of snowpack at elevation means routefinding, postholing, and icy conditions on north-facing slopes. Nights are hard freezing (24–28°F), so expect consolidated crust in the morning and softening by early afternoon. Weather window is clean all weekend, crossings are normal, no fires — go, but be ready for a full winter travel experience above treeline.
Cascades, WA
Weather window looks solid through Sunday — light winds, mostly sunny, and freezing levels that should keep the DC route in good shape for a summit push Friday or Saturday. Sunday night brings a 44% chance of rain/snow, so plan to be off the upper mountain by Sunday afternoon at the latest.
Cascades, CA
No avalanche center rating this late in season — standard late-spring Shasta conditions apply. Weather window is excellent through Sunday with calm winds and no precip. Plan your summit bid for Saturday or Sunday with a 1–2 AM start from Helen Lake; freeze-thaw cycle will be your main route management variable.
Cascades, WA
No avalanche rating is posted for West Slopes North — NWAC has moved to their summer/off-season schedule, which means no professional hazard assessment. With 59°F highs and a 31-inch snowpack at lower elevations, wet loose is your primary self-managed concern on sun-exposed terrain Friday and Saturday. You can ski, but treat this like a spring mountaineering objective: be off steep solar aspects before midday.
Elk Mountains, CO
Solid window for the Four Pass Loop. Low avalanche danger, normal stream flows, no fires, and a stable weather pattern with a minor snow shower chance tonight. Cold nights (24–28°F) and 31 inches of snowpack on the high passes are your main logistical factors — plan your pass crossings for late morning when the snow is firm but not icy.
Elk Mountains, CO
Clean avalanche bulletin and a stable weather window make this a solid long weekend for Capitol. Tonight's chance of snow showers is minor — plan your summit bid for Saturday or Sunday morning when skies clear. Wind at the Knife Ridge will run 25–30 mph (doubling surface forecasts), so pick your window and move efficiently.
Front Range, CO
Clean conditions window opening this weekend — Low avalanche danger, light winds, and a strong summit day shaping up for Sunday. Tonight and Saturday carry small precip chances (24% / 15%) that could glaze the upper route, so plan your summit bid for Sunday when skies are clear and temps climb to 62°F at the forecast level.
Front Range, CO
Clean Low danger bulletin with no identified avalanche problems — this is a great late-season ski touring window. Sunday warms to 47°F so plan accordingly, but Friday and Saturday are straightforward.
Grand Canyon, AZ
Heat is the only real problem here — three consecutive days at 92-94°F in the Canyon with temps bottoming out at 59°F overnight. Start before sunrise, be at Phantom Ranch or below the inner gorge before 10 AM, and plan your canyon floor exposure around midday heat. The weather window is clean otherwise.
Grand Canyon, AZ
Excellent conditions window for the Bright Angel. Three days of sunny, calm weather with highs in the mid-70s and no fires, no floods, no complications. The only real threat is heat — plan your miles for early morning and manage your descent/ascent timing accordingly.
Sawatch Range, CO
Good window for the Collegiate Peaks Loop. Low avalanche danger, no fire smoke, and stream flows are normal — no major hazards this weekend. Watch the afternoon temps Sunday (48°F) driving snowmelt, and plan crossings for morning before flows peak.
Sawatch Range, CO
Good window today and Saturday — sunny, light wind, no thunderstorm risk. Sunday changes: 16% chance of afternoon storms so plan to be off exposed ridges and Hope Pass by noon. Overnight lows in the mid-20s mean cold starts; dress for it but the days are fine.
Sierra Nevada, CA
Solid conditions for a May JMT trip. Afternoon thunderstorm risk today and Sunday — plan your exposed ridge and pass crossings for morning. Stream flows are at or below median across all gauges, so crossings shouldn't be an issue.
Sierra Nevada, CA
Good conditions window for Whitney this weekend. Weather is stable with cool highs in the low 40s, overnight lows at 29°F, and no significant precip — but 31 inches of snowpack on the trail means microspikes and an ice axe are mandatory above treeline. Flows on all relevant gauges are at or below median, so no crossing concerns.
Sierra Nevada, CA
Good conditions window for the High Sierra Trail. Weather is cooperative with only slight thunderstorm chances today and Sunday afternoon — get your miles in before noon on those days. Stream crossings are running at normal flows, no fire smoke, and you've got nearly 14.5 hours of daylight to work with.
Sierra Nevada, CA
Sierra Avalanche Center has no active rating for Mt. Rose right now — late season gap in coverage, not a green light. With daytime highs hitting 59°F and no overnight refreeze below about 8,000 ft, wet loose is your primary concern starting mid-morning. Get on and off the mountain early.
Sierra Nevada, CA
Good window for this trip. Weather is mostly calm with a slight afternoon storm chance today and Sunday — get moving early those days and be off exposed ridges by noon. Snow at route elevation is real; plan on post-holing and slow travel above 10,000 ft.
Sierra Nevada, CA
Avalanche data is unavailable, so treat the Mountaineers Route with caution on the upper snowfields — late-May snow is typically consolidated but the absence of a current forecast means you're flying blind on instability. Weather window is excellent: light winds, sunny through Saturday, with a minor snow shower chance Friday afternoon and again Sunday. Go, but get your summit push done Saturday.
Tetons, WY
Good window for the Crest Trail. Weather holds clean through Saturday, light winds, no fires, stream crossings normal. Sunday afternoon brings a 21% chance of thunderstorms — plan your exposed ridge miles for morning. Snow is still present (Long Lake at 61 inches) so expect lingering patches above treeline.
Tetons, WY
No avalanche bulletin and no active problems — snowpack is in late-season consolidation. Weather window is clean Friday through Saturday, but Sunday brings increasing SW winds (25 mph surface = ~50 mph at summit) and a 21% chance of snow showers. Plan your summit bid for Saturday and be off the upper mountain by early Sunday afternoon at the latest.
Tetons, WY
No avalanche bulletin is being issued for the Tetons right now — it's late May and BTAC has ended seasonal forecasting. That means you're on your own for snowpack assessment. The snowpack at elevation is limited (31 inches reported), temps are warming toward 45°F by Sunday with SW winds building to 25 mph, so wet snow and wind effect are your main concerns. Go early, get off before noon.
Tetons, WY
Bridger-Teton Avalanche Center has no rating up right now — it's late May and they've likely ended their season. Treat this as unforecasted terrain and use field observations to make your own call. Snowpack at 31 inches is hanging on, weather is clean through Saturday, but a warm weekend with highs hitting 63°F means wet slide activity is a real concern by Sunday afternoon.
Wasatch, UT
Utah Avalanche Center has no rating posted for Salt Lake zone — this is likely a seasonal bulletin closeout, not a data gap. With daytime highs hitting 58–61°F and no overnight refreeze below the mid-elevations, wet avalanche and isothermal snowpack are the real story. The 31 inches remaining in LCC is skiable but late-season conditions demand strict morning-only timing.
Wasatch, UT
Great weather window for the whole trip — sunny, mild, and dry through Sunday. Snow depth at elevation (Long Lake at 840 ft showing 61 inches, but that station data looks mismatched to this terrain) may mean lingering snow on upper course sections, so expect some postholing and slower footing on north-facing segments above 8,000 ft. No storms, no fires, no serious hazards — go run.
Wind River Range, WY
A winter storm is hitting the Winds right now — snow showers through tonight with a 14°F low. Friday clears and Saturday looks excellent, but you're heading in during the messy part. Go, but plan for a cold, snowy approach today and be ready for post-storm snow on the trails through Friday morning.
Wind River Range, WY
Good window to go. Snow showers tonight and today clear out by Saturday, leaving two sunny days with mild temps. Snowpack is still deep at elevation — expect postholing and some seasonal crossings, but flows are running normal. No fires, no wind, no drama.
Zion, UT
Excellent conditions for a 3-day trip to Angels Landing. Sunny skies, light winds, no fires, and comfortable temps all three days. Go.
Zion, UT
Excellent conditions window for the Narrows this weekend. Weather is stable, flows are normal, no fires, and you've got nearly 14.5 hours of daylight. Go.
Zion, UT
Excellent conditions window for the Zion Traverse. Three days of sunny, mild weather with highs in the mid-to-upper 70s, light winds, and no storm threats. Heat and pace management are your only real concerns — start early, hit exposed canyon sections before afternoon, and carry more water than you think you need.