Borah Peak & Lost River Range, ID
Today’s Forecast:
Today’s Report:
Hiking
Not Recommended for hiking. High near 24°F. Rain forecast later today (74%). Light wind (14 mph). Temperatures outside comfort limits (24°F).
- Temp: Unfavorable weather factor
- Rain: Marginal weather factor
- Wind: Favorable conditions
- Thunderstorm: Favorable conditions
Camping
Not Recommended for camping. High near 24°F. Rain forecast later today (74%). Light wind (14 mph). Temperatures outside comfort limits (24°F).
- Temp: Unfavorable weather factor
- Rain: Marginal weather factor
- Wind: Favorable conditions
- Thunderstorm: Favorable conditions
Outdoor Events / Activities
Not Recommended for outdoor events / activities. High near 24°F. Rain forecast later today (74%). Light wind (14 mph). Temperatures outside comfort limits (24°F).
- Temp: Unfavorable weather factor
- Rain: Marginal weather factor
- Wind: Favorable conditions
- Thunderstorm: Favorable conditions
About Borah Peak & Lost River Range
Borah Peak & Lost River Range is an Idaho destination for Idaho’s highest summit and an exposed high-alpine hiking destination.
Make the Most of a Borah Peak & Lost River Range Day
Match the route, launch, facility, or turnaround time to wind, precipitation, temperature, smoke, water, snow, road access, and daylight. Keep a shorter or more sheltered backup ready.
Weather Tips for the Lost River Range
- Check official access notices, alerts, road or trail conditions, fire restrictions, and local forecasts before leaving.
- Turn around before exposed ridges, canyon rims, dunes, or open ground become unsafe in lightning, heat, smoke, wind, or poor visibility.
- Carry layers, water, navigation, sun protection, and seasonal traction or flotation appropriate to the activity.
- Allow extra time for remote roads, mountain passes, wildfire smoke, spring runoff, and limited winter daylight.
Nearby Towns and Areas
This page can also be useful when planning outdoor time near:
- Mackay
- Trail Creek Road
- Mount Idaho
- Leatherman Peak
- Challis
Plan Around the Conditions
Choose the safest version of a Borah Peak & Lost River Range day by matching the activity to current wind, precipitation, temperature, smoke, water or snow conditions, access, and daylight.
7-Day Forecast for Borah Peak, ID
Borah Peak & Lost River Range Weather by Season
Winter
Winter at Borah Peak & Lost River Range can bring snow, ice, wind, short daylight, and rapidly changing road or trail access.
Spring
Spring brings freeze-thaw mud, snowmelt, high rivers, cold water, and lingering mountain snow. Lower routes usually open well before high passes and backcountry trailheads.
Summer
Summer usually offers the broadest access, but dry heat, thunderstorms, lightning, wildfire smoke, fire restrictions, reservoir wind, and cold mountain water can alter plans.
Fall
Fall brings cooler air, shorter daylight, hunting-season awareness, and early snow at elevation. Confirm seasonal services and allow extra travel time on remote roads.
Key Climate Data Points
- Annual average temperature: around 35–43°F in nearby valleys, using the relevant local and elevation context.
- Annual snowfall: often 80–150+ inches in high terrain.
- Warmest months: July and August are normally warmest.
- Coolest months: December and January are typically coolest.
- Wettest season: winter and spring usually provide the greatest mountain precipitation, with local variation.
- Driest season: midsummer is generally driest, despite isolated thunderstorms.
- Best outdoor window: June through October for warm-season access, with midwinter best at established winter destinations.