Redfish Lake

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Redfish Lake and the Grand Mogul in the Sawtooth Range of Sawtooth National Recreation Area, Idaho
Redfish Lake and the Grand Mogul in the Sawtooth Range of Sawtooth National Recreation Area, Idaho. Image by Karthikc123 via Wikimedia Commons, CC BY-SA 3.0.

Today’s Forecast:

🌤
85°F
Current Temperature
Station: KSNT
Observed at: 3:51 pm
Wind: 9 mph | Humidity: 16%
This Afternoon:Sunny. High near 86, with temperatures falling to around 84 in the afternoon. Southwest wind around 9 mph, with gusts as high as 23 mph.
Tonight:Patchy smoke after 7pm. Mostly clear. Low around 48, with temperatures rising to around 51 overnight. Southwest wind 2 to 8 mph, with gusts as high as 22 mph.
Monday:Patchy smoke. Sunny, with a high near 84. South southwest wind 2 to 9 mph, with gusts as high as 23 mph.

Today’s Report:

⛵ Boating

Use Caution
  49 /100

Use Caution for boating. High near 85°F. Light wind (9 mph). Smoke or haze in forecast.

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Smoke: Marginal weather factor
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Use Caution 49/100
Use Caution for boating. High near 83°F. Light wind (9 mph). Smoke or haze in forecast.

🛶 Paddling

Use Caution
  49 /100

Use Caution for paddling. High near 85°F. Light wind (9 mph). Smoke or haze in forecast.

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Smoke: Marginal weather factor
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Use Caution 49/100
Use Caution for paddling. High near 83°F. Light wind (9 mph). Smoke or haze in forecast.

⛺ Camping

Use Caution
  46 /100

Use Caution for camping. High near 85°F. Light wind (9 mph). Smoke or haze in forecast.

  • Temp: Marginal weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Smoke: Marginal weather factor
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Use Caution 47/100
Use Caution for camping. High near 83°F. Light wind (9 mph). Smoke or haze in forecast.

🥾 Hiking

Use Caution
  45 /100

Use Caution for hiking. High near 85°F. Light wind (9 mph). Smoke or haze in forecast.

  • Temp: Marginal weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Smoke: Marginal weather factor
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Use Caution 46/100
Use Caution for hiking. High near 83°F. Light wind (9 mph). Smoke or haze in forecast.

About Redfish Lake

Redfish Lake is an Idaho destination for a popular mountain lake, campground, trailhead, and winter snowshoe area.

Make the Most of a Redfish 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 Redfish 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:

  • Redfish Lake Lodge
  • Fishhook Creek
  • Bench Lakes
  • Stanley
  • Sawtooth Wilderness

Plan Around the Conditions

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

7-Day Forecast for Redfish Lake

🌤
85°F
Current Temperature
Station: KSNT
Observed at: 3:51 pm
Wind: 9 mph | Humidity: 16%
Sun ☀
86° 48°
1%
Mon 🌫
84° 46°
0%
Tue 🌫
84° 48°
0%
Wed ☀
84° 48°
2%
Thu ☀
86° 50°
0%
Fri ☀
86° 50°
0%
Sat ☀
86° 48°
0%

7-Day High Temperature Trend

86° Sun 84° Mon 84° Tue 84° Wed 86° Thu 86° Fri 86° Sat

7-Day Low Temperature Trend

48° Sun 46° Mon 48° Tue 48° Wed 50° Thu 50° Fri 48° Sat

📊 7-Day Outdoor Outlook

Good Fair Poor 20 Sun 12 Mon 12 Tue 20 Wed 20 Thu 20 Fri 20 Sat
Forecast data from the National Weather Service  |  Last Updated: July 26, 2026 4:31 pm CDT

Redfish Lake Weather by Season

Winter

Winter at Redfish 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 35–41°F, using the relevant local and elevation context.
  • Annual snowfall: commonly 70–120 inches near the lake, with much more on surrounding peaks.
  • 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.