Conditions: weather, snow, rivers, roads & webcams
Today's forecast for Island Park and Yellowstone, and where to check the roads.
Conditions now
Weather forecast
- Temperature
- 39°F
- Conditions
- Mostly Cloudy
- Tonight Low 22° Mostly Clear then Patchy Fog
- Thursday High 54° Low 21° Patchy Fog then Sunny
- Friday High 55° Low 22° Sunny
From the National Weather Service, updated 8:20 pm.
Rivers
Henrys Fork near Island Park, ID, 7.3 mi away
- Flow
- 92 cfs
- Change in 24 hours
- -4 cfs
From the U.S. Geological Survey, updated 8:19 pm.
National park alerts and road events
Yellowstone National Park, 48.9 mi away
- Park alerts
- 5
- Closure alerts
- 1
- West Thumb Geyser Basin Boardwalk - Partial Closure (Information): A section of the West Thumb Geyser Basin boardwalk will be closed to Fishing Cone and Lakeshore Geyser through mid-October while crews replace damaged support structures along the shoreline. The remaining sections of …
- Stay Away From Bull Elk (Caution): Bull elk are fast and unpredictable this time of year and can seriously injure people. If an elk charges, run. In addition to staying at least 25 yards (23 m) away from elk and bison, always stay at least 100 yards (9…
- Biscuit Basin Closed Due to Hydrothermal Explosion (Park Closure): The parking lot, boardwalk, and Firehole River at Biscuit Basin, located north of Old Faithful, is closed to all travel until further notice due to the possibility of another event at the site of a hydrothermal explos…
- Traffic Delays - Gardner River High Bridge (Information): Expect a single lane of traffic with up to 15-minute delays, 24 hours a day, seven days a week, from April 1 through late October 2026. Oversized/overweight vehicles (8'6"+ wide, 75'+ long, 80,000 lbs+ gross vehicle w…
- Vehicle Entrance Reservation Not Needed (Information): Although an entrance pass is required to enter Yellowstone National Park, vehicle reservations are not needed. You are encouraged to purchase an entrance pass before arriving, but you may also purchase passes at any e…
From the National Park Service, updated 8:21 pm.
West Entrance
Weather forecast
- Temperature
- 32°F
- Conditions
- Mostly Cloudy
- Tonight Low 19° Mostly Clear then Patchy Fog
- Thursday High 52° Low 17° Patchy Fog then Sunny
- Friday High 56° Low 19° Sunny
From the National Weather Service, updated 8:20 pm.
Rivers
Madison River near West Yellowstone, MT, 1.4 mi away
- Flow
- 315 cfs
- Change in 24 hours
- -14 cfs
- Water temperature
- 53°F
From the U.S. Geological Survey, updated 8:19 pm.
Old Faithful & the Upper Geyser Basin
Weather forecast
Old Faithful & the Upper Geyser Basin
- Temperature
- 38°F
- Conditions
- Partly Cloudy
- Tonight Low 23° Partly Cloudy
- Thursday High 53° Low 23° Sunny
- Friday High 56° Low 23° Sunny
From the National Weather Service, updated 8:20 pm.
Rivers
Firehole River at Old Faithful, YNP, 0.3 mi away
- Flow
- 42 cfs
- Change in 24 hours
- -2 cfs
- Water temperature
- 50°F
From the U.S. Geological Survey, updated 8:19 pm.
Road conditions
- Idaho roads: Idaho 511, or dial 511 in Idaho.
- Montana roads: Montana 511, or dial 511 in Montana.
- Yellowstone roads: NPS park road status, or call (307) 344-2117 for recorded road information.
Webcams
West Entrance
Webcams
From the National Park Service, updated 8:21 pm.
Grand Canyon of the Yellowstone
Webcams
From the National Park Service, updated 8:21 pm.
What to realistically expect
- Rapid weather changes are normal. Cool mornings, warm afternoons, sudden showers or thunderstorms, colder air higher up and wind in the open valleys, all in one day. Forecasts help but are not always precise in the mountains.
- Cold mornings, even in summer. Layers are the most reliable strategy all year.
- Road delays from wildlife crossings, construction, wet or slick pavement, and frost or snow outside the peak of summer. Travel times often run longer than the map says.
- Spring and fall bring mixed conditions: occasional snow or ice, low visibility and soft shoulders. Winter is far more demanding.
Winter driving
Snow tires and four-wheel drive are recommended in eastern Idaho in winter. Roads can change quickly, and even busy highways sometimes close for blizzards or high winds. Check 511 before you set out, and carry emergency gear: a shovel, water, snacks and blankets.
Backcountry safety
If you ski, snowmobile or hike into the backcountry, take survival gear and avalanche equipment, check the avalanche forecast from the Gallatin National Forest Avalanche Center, and do not rely on a phone or GPS alone. Most of all, tell someone where you are going and when you will be back.
Maps
The travel guide map shows the places in this guide, and the National Park Service has official Yellowstone maps. Live webcams are above.
Weather & road questions
Are Yellowstone roads open year-round?
What should I know about winter driving between Island Park and Yellowstone?
A warm cabin to come home to
Fireplaces and hot tubs for the cold evenings.
More guides
Seasons & What to Pack
Layers, spring snow and summer storms: what to expect each season, and what to bring.