Weather for Yellowstone National Park, Wyoming
Current Weather
35.1°F
Conditions: Overcast
Humidity: 92%
Feels Like: 28.3°F
Wind: S 8.5 mph
Wind Gusts: 14.7 mph
Humidity: 92%
Feels Like: 28.3°F
Wind: S 8.5 mph
Wind Gusts: 14.7 mph
Pressure: 30.09 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 1.2
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 1.2
Five Day Weather Forecast
Tue
H: 37°F
L: 31°F
Wed
H: 34°F
L: 29°F
Thu
H: 34°F
L: 22°F
Fri
H: 25°F
L: 18°F
Sat
H: 23°F
L: 2°F
Air Quality
AQI:
1 - Good
PM2.5:
2.18 μg/m3
PM10:
2.78 μg/m3
Carbon Monoxide: 106.68 μg/m3
Nitrogen Dioxide: 2.98 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 85 μg/m3
Nitrogen Dioxide: 2.98 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 85 μg/m3
Astronomical
Sunrise: 7:58 AM
Sun Transit: 12:22 AM
Sunset: 4:48 PM
Daylight: 8 hrs 50 mins
Sun Transit: 12:22 AM
Sunset: 4:48 PM
Daylight: 8 hrs 50 mins
Moonrise: 10:40 AM
Moon Transit: 3:28 PM
Moonset: 8:27 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.7%
Moon Transit: 3:28 PM
Moonset: 8:27 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.7%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:58 PM - 5:28 PM
Minor Periods
7:57 PM - 9:27 PM10:10 AM - 11:40 AM
Action Rating: 2 out of 5
Avalanche Warning issued December 22 at 5:07AM MST by NWS Pocatello ID
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Mon December 22, 2025, 5:07 AM
Expires: Tue December 23, 2025, 5:30 AM
AVWPIH * WHAT...Avalanche Warning. The avalanche danger is HIGH on all slopes. Natural and human triggered slides are very likely. * WHERE...The mountains near Island Park, West Yellowstone, and Cooke City. * WHEN...Until 530 AM Tuesday. * IMPACTS...Heavy snowfall on a snowpack with unstable weak layers will make human triggered avalanches very likely.
Very dangerous avalanche conditions exist. Backcountry travelers should stay off steep slopes and away from the bottom of steep slopes. Avalanches can be triggered from flat terrain. Steep slopes can avalanche far above and run into lower angled-terrain. Consult www.mtavalanche.com or www.avalanche.org for more detailed information. Similar avalanche danger may exist at locations outside the coverage area of this or any avalanche center.
Tuesday, December 23, 2025
Weather Forecast
Conditions: Moderate rain
Average Temperature: 33.8°F
Average Humidity: 89%
Average Temperature: 33.8°F
Average Humidity: 89%
Chance of Rain: 71%
Wind: 13.6 mph
UV Index: 0.2
Wind: 13.6 mph
UV Index: 0.2
Air Quality
AQI:
1 - Good
PM2.5:
3.61 μg/m3
PM10:
6.61 μg/m3
Carbon Monoxide: 119.84 μg/m3
Nitrogen Dioxide: 2.26 μg/m3
Sulphur Dioxide: 1.21 μg/m3
Ozone: 78.44 μg/m3
Nitrogen Dioxide: 2.26 μg/m3
Sulphur Dioxide: 1.21 μg/m3
Ozone: 78.44 μg/m3
Astronomical
Sunrise: 7:58 AM
Sun Transit: 12:22 AM
Sunset: 4:48 PM
Daylight: 8 hrs 50 mins
Sun Transit: 12:22 AM
Sunset: 4:48 PM
Daylight: 8 hrs 50 mins
Moonrise: 10:40 AM
Moon Transit: 3:28 PM
Moonset: 8:27 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.7%
Moon Transit: 3:28 PM
Moonset: 8:27 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.7%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:58 PM - 5:28 PM
Minor Periods
7:57 PM - 9:27 PM10:10 AM - 11:40 AM
Action Rating: 2 out of 5
Wednesday, December 24, 2025
Weather Forecast
Conditions: Moderate or heavy snow showers
Average Temperature: 31.4°F
Average Humidity: 86%
Average Temperature: 31.4°F
Average Humidity: 86%
Chance of Rain: 69%
Wind: 11 mph
UV Index: 0.3
Wind: 11 mph
UV Index: 0.3
Air Quality
AQI:
1 - Good
PM2.5:
2.98 μg/m3
PM10:
3.97 μg/m3
Carbon Monoxide: 105.76 μg/m3
Nitrogen Dioxide: 2.12 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 87.16 μg/m3
Nitrogen Dioxide: 2.12 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 87.16 μg/m3
Astronomical
Sunrise: 7:58 AM
Sun Transit: 12:23 AM
Sunset: 4:49 PM
Daylight: 8 hrs 51 mins
Sun Transit: 12:23 AM
Sunset: 4:49 PM
Daylight: 8 hrs 51 mins
Moonrise: 11:02 AM
Moon Transit: 4:14 PM
Moonset: 9:37 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.9%
Moon Transit: 4:14 PM
Moonset: 9:37 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.9%
Best Times for Fishing or Hunting
Major Periods
12:30 AM - 3:00 AM3:44 PM - 6:14 PM
Minor Periods
9:07 PM - 10:37 PM10:32 AM - 12:02 AM
Action Rating: 2 out of 5
Thursday, December 25, 2025
Weather Forecast
Conditions: Moderate or heavy snow in area with thunder
Average Temperature: 31.4°F
Average Humidity: 94%
Average Temperature: 31.4°F
Average Humidity: 94%
Chance of Rain: 74%
Wind: 14.3 mph
UV Index: 0.2
Wind: 14.3 mph
UV Index: 0.2
Air Quality
AQI:
1 - Good
PM2.5:
1.72 μg/m3
PM10:
1.8 μg/m3
Carbon Monoxide: 112.56 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 80.4 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 80.4 μg/m3
Astronomical
Sunrise: 7:58 AM
Sun Transit: 12:23 AM
Sunset: 4:49 PM
Daylight: 8 hrs 51 mins
Sun Transit: 12:23 AM
Sunset: 4:49 PM
Daylight: 8 hrs 51 mins
Moonrise: 11:22 AM
Moon Transit: 4:58 PM
Moonset: 10:47 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.7%
Moon Transit: 4:58 PM
Moonset: 10:47 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.7%
Best Times for Fishing or Hunting
Major Periods
1:14 AM - 3:44 AM4:28 PM - 6:58 PM
Minor Periods
10:17 PM - 11:47 PM10:52 AM - 12:22 AM
Action Rating: 3 out of 5
Friday, December 26, 2025
Weather Forecast
Conditions: Blizzard
Average Temperature: 23.7°F
Average Humidity: 91%
Average Temperature: 23.7°F
Average Humidity: 91%
Chance of Rain: 84%
Wind: 21.5 mph
UV Index: 0.2
Wind: 21.5 mph
UV Index: 0.2
Air Quality
AQI:
1 - Good
PM2.5:
1.44 μg/m3
PM10:
3.16 μg/m3
Carbon Monoxide: 124.33 μg/m3
Nitrogen Dioxide: 1.5 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 90.08 μg/m3
Nitrogen Dioxide: 1.5 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 90.08 μg/m3
Astronomical
Sunrise: 7:59 AM
Sun Transit: 12:24 AM
Sunset: 4:50 PM
Daylight: 8 hrs 51 mins
Sun Transit: 12:24 AM
Sunset: 4:50 PM
Daylight: 8 hrs 51 mins
Moonrise: 11:41 AM
Moon Transit: 5:43 PM
Moonset: 11:58 PM
Moon Phase: First Quarter
Moon Illumination: 40.5%
Moon Transit: 5:43 PM
Moonset: 11:58 PM
Moon Phase: First Quarter
Moon Illumination: 40.5%
Best Times for Fishing or Hunting
Major Periods
1:59 AM - 4:29 AM5:13 PM - 7:43 PM
Minor Periods
12:00 AM - 12:00 AM11:11 AM - 12:41 AM
Action Rating: 3 out of 5
Saturday, December 27, 2025
Weather Forecast
Conditions: Freezing fog
Average Temperature: 14.3°F
Average Humidity: 93%
Average Temperature: 14.3°F
Average Humidity: 93%
Chance of Rain: 74%
Wind: 16.3 mph
UV Index: 0
Wind: 16.3 mph
UV Index: 0
Air Quality
AQI:
1 - Good
PM2.5:
1.96 μg/m3
PM10:
2.46 μg/m3
Carbon Monoxide: 137.65 μg/m3
Nitrogen Dioxide: 1.99 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 87.31 μg/m3
Nitrogen Dioxide: 1.99 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 87.31 μg/m3
Astronomical
Sunrise: 7:59 AM
Sun Transit: 12:24 AM
Sunset: 4:51 PM
Daylight: 8 hrs 52 mins
Sun Transit: 12:24 AM
Sunset: 4:51 PM
Daylight: 8 hrs 52 mins
Moonrise: 12:00 AM
Moon Transit: 2:23 AM
Moonset: 12:58 AM
Moon Phase: First Quarter
Moon Illumination: 51.8%
Moon Transit: 2:23 AM
Moonset: 12:58 AM
Moon Phase: First Quarter
Moon Illumination: 51.8%
Best Times for Fishing or Hunting
Major Periods
1:53 AM - 4:23 AM1:53 AM - 4:23 AM
Minor Periods
11:30 AM - 1:00 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
The times presented here are based upon the solunar theory, which is the idea that the movements of
fish and other animals are affected by the location of the sun and moon. The major periods are
believed to be the times of the greatest animal activity and occur when the moon is directly
overhead or underfoot (lunar transits). The minor periods also see increased activity and
occur when the moon is rising or setting. The strongest activity occurs during full or new moons,
and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.