Weather for Flagg Ranch, Wyoming
Current Weather
Humidity: 89%
Feels Like: 37.3°F
Wind: W 6.7 mph
Wind Gusts: 12.6 mph
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 8 mi
UV Index: 0
Five Day Weather Forecast
Sun
H: 53°F
L: 26°F
Mon
H: 35°F
L: 19°F
Tue
H: 48°F
L: 13°F
Wed
H: 55°F
L: 21°F
Thu
H: 51°F
L: 27°F
Air Quality
Nitrogen Dioxide: 2.25 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 77 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 6:32 PM
Daylight: 10 hrs 49 mins
Moon Transit: 11:51 AM
Moonset: 5:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.3%
Best Times for Fishing or Hunting
Major Periods
8:52 PM - 11:22 PM11:21 AM - 1:51 PM
Minor Periods
5:08 PM - 6:38 PM5:24 AM - 6:54 AM
Action Rating: 3 out of 5
Winter Weather Advisory issued October 19 at 1:03AM MDT until October 20 at 12:00PM MDT by NWS Riverton WY
Effective: Sun October 19, 2025, 1:03 AM
Expires: Sun October 19, 2025, 6:15 PM
* WHAT...Snow expected. Total snow accumulations 6 to 10 inches, mainly above 8000 feet. Winds gusting as high as 60 mph. * WHERE...Absaroka Mountains and Teton and Gros Ventre Mountains. * WHEN...From noon today to noon MDT Monday. The most impactful conditions are expected tonight. * IMPACTS...Plan on slippery road conditions, especially over mountain passes.
Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info .
Winter Weather Advisory issued October 19 at 1:20PM MDT until October 20 at 12:00PM MDT by NWS Riverton WY
Effective: Sun October 19, 2025, 1:20 PM
Expires: Mon October 20, 2025, 12:00 PM
* WHAT...Snow and blowing snow as a result of strong winds are expected. Total snow accumulations 6 to 10 inches, mainly above 8000 feet. Winds gusting as high as 60 mph. Locally stronger winds around Chief Joseph Hwy 60 to 70 mph are expected through Sunday evening. * WHERE...Absaroka Mountains and Teton and Gros Ventre Mountains. * WHEN...Until Noon MDT Monday. Greatest impacts will occur overnight. * IMPACTS...Plan on slippery road conditions, especially over mountain passes. Travel across Togwotee Pass could be particularly difficult due to strong winds and falling snow. Occasional near white-out conditions are possible. * ADDITIONAL DETAILS...Strongest winds will occur during the day Sunday through Sunday evening. Snow will begin later Sunday afternoon, generally after 6 PM. The combination of wind and snow will be the primary threat with this event.
Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info .
Weather Forecast
Average Temperature: 34.9°F
Average Humidity: 74%
Wind: 16.6 mph
UV Index: 0.6
Air Quality
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 2.34 μg/m3
Ozone: 93.96 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 6:32 PM
Daylight: 10 hrs 49 mins
Moon Transit: 11:51 AM
Moonset: 5:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.3%
Best Times for Fishing or Hunting
Major Periods
8:52 PM - 11:22 PM11:21 AM - 1:51 PM
Minor Periods
5:08 PM - 6:38 PM5:24 AM - 6:54 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 28.9°F
Average Humidity: 83%
Wind: 14.5 mph
UV Index: 0.8
Air Quality
Nitrogen Dioxide: 2.02 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 79.28 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 6:30 PM
Daylight: 10 hrs 46 mins
Moon Transit: 12:32 AM
Moonset: 5:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:02 AM - 2:32 PM
Minor Periods
5:26 PM - 6:56 PM6:29 AM - 7:59 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 27.7°F
Average Humidity: 75%
Wind: 3.6 mph
UV Index: 0.9
Air Quality
Nitrogen Dioxide: 2.59 μg/m3
Sulphur Dioxide: 1.36 μg/m3
Ozone: 90.56 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 6:29 PM
Daylight: 10 hrs 43 mins
Moon Transit: 1:13 PM
Moonset: 6:15 PM
Moon Phase: New
Moon Illumination: 1.2%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:43 AM - 3:13 PM
Minor Periods
5:45 PM - 7:15 PM7:33 AM - 9:03 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 33.9°F
Average Humidity: 56%
Wind: 2.5 mph
UV Index: 0.8
Air Quality
Nitrogen Dioxide: 3.27 μg/m3
Sulphur Dioxide: 1.21 μg/m3
Ozone: 102.6 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 6:27 PM
Daylight: 10 hrs 40 mins
Moon Transit: 1:57 PM
Moonset: 6:38 PM
Moon Phase: New
Moon Illumination: 0.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM1:27 PM - 3:57 PM
Minor Periods
6:08 PM - 7:38 PM8:39 AM - 10:09 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 35.6°F
Average Humidity: 61%
Wind: 4.5 mph
UV Index: 0.7
Air Quality
Nitrogen Dioxide: 4.29 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 94.38 μg/m3
Astronomical
Sun Transit: 1:06 PM
Sunset: 6:25 PM
Daylight: 10 hrs 37 mins
Moon Transit: 2:43 PM
Moonset: 7:06 PM
Moon Phase: New
Moon Illumination: 1.7%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:13 PM - 4:43 PM
Minor Periods
6:36 PM - 8:06 PM9:45 AM - 11:15 AM
Action Rating: 4 out of 5