Mesa Falls, ID

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Upper Mesa Falls near Warm River, Idaho
Upper Mesa Falls near Warm River, Idaho. Image by Dschwen via Wikimedia Commons, CC BY-SA 4.0.

Today’s Forecast:

🌤
58°F
High: 59° | Low: 40°
Current Temperature
Station: IPFI1
Observed at: 7:54 pm CDT on 9/26/26
Wind: 6 mph | Humidity: 35%
Tonight:Mostly cloudy. Low around 40, with temperatures rising to around 42 overnight. East wind 1 to 5 mph.
Sunday:Mostly cloudy. High near 69, with temperatures falling to around 67 in the afternoon. South southeast wind around 5 mph.
Sunday Night:A slight chance of showers and thunderstorms between midnight and 2am, then a chance of showers and thunderstorms. Mostly cloudy. Low around 42, with temperatures rising to around 44 overnight. East wind around 2 mph. Chance of precipitation is 50%.
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Today’s Report:

🥾 Hiking

Excellent
  100 /100

Excellent for hiking. High near 69°F. Low rain risk (7%).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 18/100
Not Recommended for hiking. High near 62°F. Risk of rain (47%). Thunderstorms forecast or possible.

🚲 Biking

Excellent
  100 /100

Excellent for biking. High near 69°F. Low rain risk (7%).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 15/100
Not Recommended for biking. High near 62°F. Risk of rain (47%). Thunderstorms forecast or possible.

🎪 Outdoor Events / Activities

Excellent
  100 /100

Excellent for outdoor events / activities. High near 69°F. Low rain risk (7%).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 15/100
Not Recommended for outdoor events / activities. High near 62°F. Risk of rain (47%). Thunderstorms forecast or possible.

About Mesa Falls

Mesa Falls is an Idaho destination for a major waterfall and documented winter snowmobile excursion.

Make the Most of a Mesa Falls 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 Mesa Falls

  • 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:

  • Ashton
  • Warm River
  • Island Park
  • Mesa Falls Scenic Byway
  • Henrys Fork

Plan Around the Conditions

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

7-Day Forecast for Mesa Falls, ID

🌤
58°F
High: 59° | Low: 40°
Current Temperature
Station: IPFI1
Observed at: 7:54 pm CDT on 9/26/26
Wind: 6 mph | Humidity: 35%
Sun ☁
69° 42°
7%
Mon ⛈
62° 33°
47%
Tue ☀
64° 34°
0%
Wed ☀
66° 35°
1%
Thu ☀
66° 36°
0%
Fri ☀
66° 36°
1%
Sat ⛅
64° --°
2%

7-Day High Temperature Trend

69° Sun 62° Mon 64° Tue 66° Wed 66° Thu 66° Fri 64° Sat

7-Day Low Temperature Trend

42° Sun 33° Mon 34° Tue 35° Wed 36° Thu 36° Fri 50° Sat

📊 7-Day Outdoor Outlook

Good Fair Poor 100 Sun 22 Mon 100 Tue 100 Wed 100 Thu 100 Fri 100 Sat
Forecast data from the National Weather Service  |  Last Updated: September 26, 2026 9:14 pm CDT

Mesa Falls Weather by Season

Winter

Winter at Mesa Falls 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 35–42°F, using the relevant local and elevation context.
  • Annual snowfall: commonly 80–150 inches, with a long snow season.
  • 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.