For more information about National Park Service air resources, please visit

Big Bend National Park

  • View of Sierra del Carmen in Mexico
    From the Northwest
  • Air Data
    & Weather
  • NPS Air
Visual Range is about 115 miles • updated 09/03/2015 10:30 PM CDT
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 09/03/2015 10:00 PM CDT

O3 concentration Current Today's
8-hour average 45 ppb 45 ppb   46 ppb  
1-hour average 41 ppb 48 ppb   47 ppb  

*Ozone (O3) is measured in parts per billion (ppb)

AQI Ozone

Weather at K-Bar Ranch Monitoring Site updated 09/03/2015 10:00 PM CDT

Current temperature  80 F 
Yesterday's minimum temperature  65 F 
Yesterday's maximum temperature  97 F 
Current relative humidity  32 % 
Yesterday's minimum relative humidity  22 % 
Yesterday's maximum relative humidity  64 % 
Current wind speed  2 mph  
Current wind direction WSW
Current solar radiation   
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.00 in. 

Visibility  updated 09/03/2015 09:25 PM CDT

Approximate Visual Range
Current Yesterday's
  115 miles 95 miles 33 miles

map Grand Teton National Park Web CameraGreat Smoky Mountains National Park Web Camera Home Shenandoah National Park Web Camera Hawaii Volcanoes National Park Web Camera Big Bend National Park Web Camera Joshua Tree National Park Web Camera Grand Canyon National Park Web Camera Theodore Roosevelt National Park Web Camera Washington, D.C. Web Camera Acadia National Park Web Camera Mammoth Cave National Park Web Camera Great Smoky Mountains National Park, Purchase Knob Web Camera Great Smoky Mountains National Park, Look Rock Web Camera North Cascades National Park Web Camera Olympic National Park Web Camera Mount Rainier National Park Web Camera Sequoia/Kings Canyon National Park Web Camera Yosemite National Park Web Camera Denali National Park & Preserve Web Camera Point Reyes National Seashore Web Camera
Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 09/03/2015 10:00 PM CDT
Ozone concentration is ***O3*** parts per billion air quality index (AQI) for Ozone and Particulate Matter from good to unhealthy
Current Weather »
at K-Bar Ranch
updated 09/03/2015 10:00 PM CDT
80 F

32 %

WSW-2 mph

Precipitation - 1 hr
0 in.

  • See more weather data »
  • Feature »
    feature podcast

    Last Updated: September 03, 2015