Galena Summit & Wood River Valley, ID

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Sun Rays - Galena Summit Idaho
Sun Rays - Galena Summit Idaho - Charles Knowles, CC BY 2.0, via Wikimedia Commons

Today’s Forecast:

🌤
41°F
High: 48° | Low: 33°
Current Temperature
Station: KSNT
Observed at: 10:51 pm CDT on 9/25/26
Wind: 3 mph | Humidity: 67%
Tonight:Mostly clear. Low around 33, with temperatures rising to around 35 overnight. West northwest wind 5 to 9 mph, with gusts as high as 18 mph.
Saturday:Partly sunny, with a high near 48. West southwest wind around 7 mph.
Saturday Night:Cloudy. Low around 37, with temperatures rising to around 39 overnight. Southeast wind around 5 mph.
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Today’s Report:

🚲 Biking

Good
  80 /100

Good for biking. High near 51°F. Low rain risk (18%). Light wind (6 mph).

  • Temp: Marginal weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Good 75/100
Good for biking. High near 48°F. Light wind (7 mph).

🥾 Hiking

Excellent
  89 /100

Excellent for hiking. High near 51°F. Low rain risk (18%). Light wind (6 mph).

  • Temp: Marginal weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Good 84/100
Good for hiking. High near 48°F. Light wind (7 mph).

⛺ Camping

Excellent
  100 /100

Excellent for camping. High near 51°F. Low rain risk (18%). Light wind (6 mph).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Use Caution 46/100
Use Caution for camping. High near 48°F. Light wind (7 mph). Cold overnight low (37°F).

About Galena Summit & Wood River Valley

Galena Summit & Wood River Valley is an Idaho destination for a mountain-pass corridor with scenic cycling, camping, major Nordic trails, and snowmobiling.

Make the Most of a Galena Summit & Wood River Valley 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 Galena Summit & Wood River Valley

  • 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:

  • Galena Lodge
  • Alturas Lake
  • Smiley Creek
  • Big Wood River
  • Ketchum

Plan Around the Conditions

Choose the safest version of a Galena Summit & Wood River Valley day by matching the activity to current wind, precipitation, temperature, smoke, water or snow conditions, access, and daylight.

7-Day Forecast for Galena Summit & Wood River Valley

🌤
41°F
High: 48° | Low: 33°
Current Temperature
Station: KSNT
Observed at: 10:51 pm CDT on 9/25/26
Wind: 3 mph | Humidity: 67%
Sat ⛅
48° 37°
0%
Sun 🌧
51° 36°
18%
Mon ⛅
53° 33°
12%
Tue ☀
54° 35°
0%
Wed ☀
55° 36°
1%
Thu ☀
54° 35°
0%
Fri ⛅
47° --°
11%

7-Day High Temperature Trend

48° Sat 51° Sun 53° Mon 54° Tue 55° Wed 54° Thu 47° Fri

7-Day Low Temperature Trend

37° Sat 36° Sun 33° Mon 35° Tue 36° Wed 35° Thu 50° Fri

📊 7-Day Outdoor Outlook

Good Fair Poor 20 Sat 75 Sun 85 Mon 90 Tue 100 Wed 90 Thu 20 Fri
Forecast data from the National Weather Service  |  Last Updated: September 26, 2026 7:54 pm CDT

Weather by Season

Winter

Winter at Galena Summit & Wood River Valley 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 70–150 inches in valleys and much more 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.