National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall for Portions of the West and Central U.S.; Monitoring Fire Weather Conditions for New England

Tropical moisture continues to flow across portions of the Great Basin, desert Southwest and California. Isolated instances of flash flooding remains possible. Meanwhile, a storm and associated frontal boundary will focus showers and thunderstorms for the center of the nation. For New England, dry and breezy conditions could enhance favorable fire weather conditions. Read More >

Hazardous Weather Conditions

Current conditions at

GW2742 Byron (G2742)

Lat: 44.79917°NLon: 108.50567°WElev: 4032.0ft.

NA

52°F

11°C

Humidity 70%
Wind Speed N 0 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 42°F (6°C)
Visibility NA
Last update 21 Sep 01:25 AM MDT
Extended Forecast for

Byron WY

  • Overnight

    Overnight: Clear, with a low around 48. South wind around 5 mph becoming calm.

    Low: 48 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 82. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 51. South southwest wind 6 to 14 mph becoming north northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%.

    Low: 51 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers, with thunderstorms also possible after noon. High near 60. Breezy, with a north wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.

    High: 60 °F

    Breezy.
    Showers then
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41. Breezy, with a north wind 11 to 16 mph becoming west northwest 5 to 10 mph after midnight. Winds could gust as high as 24 mph.

    Low: 41 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. Southeast wind around 6 mph.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 48. South wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 82. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 51. South southwest wind 6 to 14 mph becoming north northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%.
Monday
Showers, with thunderstorms also possible after noon. High near 60. Breezy, with a north wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Monday Night
Partly cloudy, with a low around 41. Breezy, with a north wind 11 to 16 mph becoming west northwest 5 to 10 mph after midnight. Winds could gust as high as 24 mph.
Tuesday
Sunny, with a high near 71. Calm wind becoming southeast around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 42. Southeast wind around 6 mph.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Byron WY
 44.79°N 108.5°W (Elev. 4003 ft)
Last Update:
12:59 am MDT Sep 21, 2025
Forecast Valid:
1am MDT Sep 21, 2025-6pm MDT Sep 27, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation