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Barnum, Wyoming Weather Forecast
Barnum, Wyoming Weather
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Weather Forecast for Barnum, Wyoming : Johnson County
Issued: 10:47 pm MST Dec 16, 2025 Latitude: 43.6641328 Longitude: -106.909502 View on Google Maps

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Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Mostly Clear on Tonight 60% chance of rain & snow on Wednesday Partly Sunny on Thursday Mostly Sunny on Friday 20% chance of snow on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday
Low: 33°F High: 56°F High: 42°F High: 55°F High: 44°F High: 48°F High: 58°F High: 58°F
Low: 20°F Low: 29°F Low: 27°F Low: 23°F Low: 30°F Low: 35°F  
Mostly Clear Rain & Snow Partly Sunny Mostly Sunny Snow Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
BUFFALO - (KBYG)
50°
Clear
as of 10:53 PM MST
Rel. Humidity: 31%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.84 in.
Flight Rule: VFR
Wind Data
6 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
CASPER - (KCPR)
43°
Feels like 36°F
Clear
as of 10:53 PM MST
Rel. Humidity: 52%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
12 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
WORLAND - (KWRL)
43°
Clear
as of 10:53 PM MST
Rel. Humidity: 41%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: VFR
Wind Data
8 MPH
150° Southeast
Cloud Level(s): Clear
Current Conditions at
SOUTH BIG HORN - (KGEY)
39°
Clear
as of 10:53 PM MST
Rel. Humidity: 60%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
6 MPH
120° Southeast
Cloud Level(s): Clear
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 33. Very windy, with a west wind 13 to 23 mph increasing to 27 to 37 mph after midnight. Winds could gust as high as 55 mph.
60% chance of rain & snow Wednesday Wednesday... Rain showers likely before 4pm, then a slight chance of snow showers. Mostly sunny, with a high near 56. Very windy, with a west southwest wind 23 to 28 mph increasing to 32 to 37 mph in the morning. Winds could gust as high as 60 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 20. Windy, with a west northwest wind 17 to 26 mph, with gusts as high as 40 mph.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 42. Breezy, with a west southwest wind 9 to 15 mph, with gusts as high as 24 mph.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 29. Breezy, with a west wind 16 to 23 mph, with gusts as high as 36 mph.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 55. Windy, with a west wind 24 to 30 mph, with gusts as high as 45 mph.
30% chance of rain & snow Friday Night Friday Night... A chance of rain and snow showers, mainly after 11pm. Mostly cloudy, with a low around 27. Breezy, with a west wind 15 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
20% chance of snow Saturday Saturday... A 20 percent chance of snow showers before 11am. Mostly sunny, with a high near 44. Breezy.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 23.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 48.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 30.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 58. Breezy.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 35.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 58. Breezy.
Current Radar Image


Sun Almanac for Barnum, Wyoming
Sunrise: 07:36 AM
Sunset: 4:32 PM
Civil Sunrise:07:03 AM
Civil Sunset: 5:05 PM
Nautical Sunrise: 06:27 AM
Nautical Sunset: 5:41 PM
Astro Sunrise: 05:52 AM
Astro Sunset: 6:16 PM
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