Henry’s Fork, ID

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Henrys Fork landscape
Henrys Fork landscape. Image by Z3lvs via Wikimedia Commons, CC0.

Today’s Forecast:

🌤
63°F
High: 65° | Low: 45°
Current Temperature
Station: IPFI1
Observed at: 4:54 pm CDT on 9/26/26
Wind: 7 mph | Humidity: 29%
This Afternoon:Mostly cloudy, with a high near 65. Southwest wind around 14 mph, with gusts as high as 26 mph.
Tonight:Mostly cloudy. Low around 45, with temperatures rising to around 47 overnight. East southeast wind 3 to 10 mph, with gusts as high as 22 mph.
Sunday:Mostly cloudy, with a high near 71. East wind 2 to 6 mph.
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Today’s Report:

🛶 Paddling

Good
  81 /100

Good for paddling. High near 63°F. Low rain risk (4%). Breezy winds (10 mph).

  • Temp: Marginal weather factor
  • Rain: Favorable conditions
  • Wind: Marginal weather factor
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 100/100
Excellent for paddling. High near 71°F. Low rain risk (6%). Light wind (6 mph).

⛺ Camping

Excellent
  100 /100

Excellent for camping. High near 63°F. Low rain risk (4%). Light wind (10 mph).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 100/100
Excellent for camping. High near 71°F. Low rain risk (6%). Light wind (6 mph).

🚲 Biking

Excellent
  100 /100

Excellent for biking. High near 63°F. Low rain risk (4%). Light wind (10 mph).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 100/100
Excellent for biking. High near 71°F. Low rain risk (6%). Light wind (6 mph).

About Henry’s Fork

Henry’s Fork is an Idaho destination for a famous river corridor with cold water, runoff, fishing, and scenic cycling.

Make the Most of a Henry’s Fork 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 Fork, ID

  • 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:

  • Ashton
  • St. Anthony
  • Island Park
  • Warm River
  • Chester Dam

Plan Around the Conditions

Choose the safest version of a Henry’s Fork day by matching the activity to current wind, precipitation, temperature, smoke, water or snow conditions, access, and daylight.

7-Day Forecast for Henry’s Fork

🌤
63°F
High: 65° | Low: 45°
Current Temperature
Station: IPFI1
Observed at: 4:54 pm CDT on 9/26/26
Wind: 7 mph | Humidity: 29%
Sat ☁
65° 45°
1%
Sun ☁
71° 47°
6%
Mon ⛈
65° 39°
33%
Tue ☀
66° 39°
0%
Wed ☀
68° 40°
1%
Thu ☀
69° 41°
0%
Fri ☀
69° 41°
1%

7-Day High Temperature Trend

65° Sat 71° Sun 65° Mon 66° Tue 68° Wed 69° Thu 69° Fri

7-Day Low Temperature Trend

45° Sat 47° Sun 39° Mon 39° Tue 40° Wed 41° Thu 41° Fri

📊 7-Day Outdoor Outlook

Good Fair Poor 100 Sat 100 Sun 65 Mon 100 Tue 100 Wed 100 Thu 100 Fri
Forecast data from the National Weather Service  |  Last Updated: September 26, 2026 6:02 pm CDT

Weather by Season

Winter

Winter at Henry’s Fork 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 41–47°F, using the relevant local and elevation context.
  • Annual snowfall: commonly 40–80 inches, with colder higher reaches.
  • 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.