Mt. Rainier defines its own weather system. Navigate freezing rain, heavy precipitation, and high winds safely by pulling hyper-local weather alerts to your phone via satellite SMS, no cell service required.
The Wonderland Trail circumnavigates Mount Rainier, forcing hikers up and down massive river valleys and over highly exposed alpine ridges. Mt. Rainier is so massive it generates its own localized weather patterns, meaning a sunny forecast in Seattle often translates to 40°F driving rain across Panhandle Gap.
Cellular reception is effectively non-existent throughout the park's backcountry. Having access to updated weather data is essential when hiking in a damp environment where staying warm and dry is a constant battle.
Rather than spending hundreds of dollars on a bulky satellite messenger like a Garmin InReach solely to pull weather data, Wonderland Trail hikers can now leverage the modern smartphones they are already carrying (like the iPhone 14+ running iOS 18, or the Google Pixel 9 and Samsung Galaxy S25 series running Android 15+). Utilizing its native satellite texting capability, your phone can connect directly to SMS Weather On Demand.
Lighter and Safer If your smartphone already connects to satellites, ditch the heavy dedicated hardware and rely on SMS Weather On Demand to keep your pack light during the massive vertical climbs.
The initial setup happens while you're online, so that you're ready to go when you're off the grid.
Create an account to verify your phone number. Then use the "Add to Home Screen" feature on your phone to install and run our lightweight application so it can be used offline.
Head out even where there's no internet. As long as your phone has the capability to send texts or use satellite messaging, you're covered.
Open the app from your home screen. It uses your GPS location and your selected forecast options to help prepare a unique text for your request.
Just hit 'send' in your messaging app. You'll get a weather forecast texted back in moments.
Please note: Standard messaging rates from your cellular or satellite carrier will apply for the SMS messages you send and receive. Coverage and Deliverability are also dependent on the cellular/satellite messaging providers you use.






Setup your account today. Your first few requests are free so you can test the system online or out in the field.
Explore weather on other trails: Appalachian Trail, Pacific Crest Trail, Continental Divide Trail, John Muir Trail, Arizona Trail, Colorado Trail, Superior Hiking Trail, Wonderland Trail