Weather for Yellowstone National Park, Wyoming
Current Weather
Five Day Weather Forecast
Mon
H: 67°F
L: 24°F
Tue
H: 56°F
L: 28°F
Wed
H: 56°F
L: 22°F
Thu
H: 65°F
L: 20°F
Fri
H: 74°F
L: 28°F
Air Quality
Nitrogen Dioxide: 0.2 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 117 μg/m3
Astronomical
Sun Transit: 1:21 PM
Sunset: 9:08 PM
Daylight: 15 hrs 31 mins
Moon Transit: 7:34 AM
Moonset: 1:39 PM
Moon Phase: Last Quarter
Moon Illumination: 31.6%
Best Times for Fishing or Hunting
Major Periods
7:04 AM - 9:34 AM12:00 AM - 12:00 AM
Minor Periods
1:09 PM - 2:39 PM1:12 AM - 2:42 AM
Action Rating: 2 out of 5
High Wind Watch issued June 8 at 12:01PM MDT until June 11 at 3:00AM MDT by NWS Great Falls MT
Effective: Mon June 8, 2026, 12:01 PM
Expires: Tue June 9, 2026, 3:15 AM
* WHAT...West winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...Big Belt, Bridger and Castle Mountains, Gates of the Mountains, Helena Valley, Little Belt and Highwood Mountains, Meagher County Valleys, Upper Blackfoot and MacDonald Pass, Fergus County below 4500ft, and Judith Basin County and Judith Gap. * WHEN...From Wednesday morning through late Wednesday night. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Two rounds of strong winds are expected with this event. The first round will arrive Wednesday morning and last through the early afternoon. There will be a short lull in the mid-afternoon hours before the wind picks up again Wednesday evening and lasts through early Thursday morning.
Monitor the latest forecasts and warnings for updates. Remember, a High Wind Watch means that there is at least a 50% chance of 40 mph sustained winds or 58 mph wind gusts occurring during the watch period.
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.92 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 93.46 μg/m3
Astronomical
Sun Transit: 1:21 PM
Sunset: 9:08 PM
Daylight: 15 hrs 31 mins
Moon Transit: 7:34 AM
Moonset: 1:39 PM
Moon Phase: Last Quarter
Moon Illumination: 31.6%
Best Times for Fishing or Hunting
Major Periods
7:04 AM - 9:34 AM12:00 AM - 12:00 AM
Minor Periods
1:09 PM - 2:39 PM1:12 AM - 2:42 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 0.86 μg/m3
Sulphur Dioxide: 0.13 μg/m3
Ozone: 88.46 μg/m3
Astronomical
Sun Transit: 1:22 PM
Sunset: 9:08 PM
Daylight: 15 hrs 32 mins
Moon Transit: 4:27 AM
Moonset: 2:51 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%
Best Times for Fishing or Hunting
Major Periods
3:57 AM - 6:27 AM3:57 AM - 6:27 AM
Minor Periods
2:21 PM - 3:51 PM1:30 AM - 3:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.01 μg/m3
Sulphur Dioxide: 0.12 μg/m3
Ozone: 82.54 μg/m3
Astronomical
Sun Transit: 1:22 PM
Sunset: 9:09 PM
Daylight: 15 hrs 33 mins
Moon Transit: 9:05 AM
Moonset: 4:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.1%
Best Times for Fishing or Hunting
Major Periods
8:35 AM - 11:05 AM6:08 PM - 8:38 PM
Minor Periods
3:37 PM - 5:07 PM1:50 AM - 3:20 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.73 μg/m3
Sulphur Dioxide: 0.18 μg/m3
Ozone: 84.88 μg/m3
Astronomical
Sun Transit: 1:22 PM
Sunset: 9:09 PM
Daylight: 15 hrs 34 mins
Moon Transit: 9:56 AM
Moonset: 5:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.5%
Best Times for Fishing or Hunting
Major Periods
7:01 PM - 9:31 PM9:26 AM - 11:56 AM
Minor Periods
4:57 PM - 6:27 PM2:12 AM - 3:42 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.36 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 79.29 μg/m3
Astronomical
Sun Transit: 1:22 PM
Sunset: 9:10 PM
Daylight: 15 hrs 34 mins
Moon Transit: 10:52 AM
Moonset: 6:52 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.0%
Best Times for Fishing or Hunting
Major Periods
8:00 PM - 10:30 PM10:22 AM - 12:52 AM
Minor Periods
6:22 PM - 7:52 PM2:39 AM - 4:09 AM
Action Rating: 2 out of 5