Henry’s Lake
Today’s Forecast:
Today’s Report:
Boating
Use Caution for boating. High near 85°F. Low rain risk (15%). Light wind (10 mph). Slight chance of thunderstorms.
- Temp: Favorable conditions
- Rain: Favorable conditions
- Wind: Favorable conditions
- Thunderstorm: Marginal weather factor
Paddling
Use Caution for paddling. High near 85°F. Low rain risk (15%). Breezy winds (10 mph). Slight chance of thunderstorms.
- Temp: Favorable conditions
- Rain: Favorable conditions
- Wind: Marginal weather factor
- Thunderstorm: Marginal weather factor
Camping
Use Caution for camping. High near 85°F. Low rain risk (15%). Light wind (10 mph). Slight chance of thunderstorms.
- Temp: Marginal weather factor
- Rain: Favorable conditions
- Wind: Favorable conditions
- Thunderstorm: Marginal weather factor
Snowmobiling
Not Recommended for snowmobiling. High near 85°F. Low rain risk (15%). Light wind (10 mph). Extreme heat (high near 85°F). Slight chance of thunderstorms. Temperatures outside comfort limits (85°F).
- Temp: Unfavorable weather factor
- Rain: Favorable conditions
- Wind: Favorable conditions
- Heat: Unfavorable weather factor
- Thunderstorm: Marginal weather factor
About Henry’s Lake
Henry’s Lake is an Idaho destination for a nationally recognized trout and ice-fishing lake with snowmobile access.
Make the Most of a Henry’s Lake 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 Henry’s Lake
- Check official access notices, alerts, road or trail conditions, fire restrictions, and local forecasts before leaving.
- Check river flow, reservoir wind, cold-water conditions, waves, lightning, and verified local ice reports before water plans; no forecast alone proves that ice is safe.
- 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:
- Island Park
- Henry’s Lake State Park
- Targhee Pass
- West Yellowstone
- Continental Divide
Plan Around the Conditions
Choose the safest version of a Henry’s Lake day by matching the activity to current wind, precipitation, temperature, smoke, water or snow conditions, access, and daylight.
7-Day Forecast for Henry’s Lake
Weather by Season
Winter
Winter at Henry’s Lake can bring snow, ice, wind, short daylight, and rapidly changing road or trail access. Confirm grooming, avalanche information, ice conditions, and facility operations for the listed winter activities.
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 39–45°F, using the relevant local and elevation context.
- Annual snowfall: commonly 50–100 inches, varying strongly with elevation.
- 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.