Severe Thunderstorms in the Northern Plains and Upper Midwest; Critical Fire Weather in the West; Dangerous Heat in the Central and Eastern U.S.

Severe thunderstorms are likely today across the northern Plains and into the upper Mississippi Valley. Gusty winds and dry conditions will result in widespread critical fire weather through Saturday across parts of the Four Corners region and the Great Basin. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Read More >

Hazardous Weather Conditions

Current conditions at

GW2742 Byron (G2742)

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

NA

69°F

21°C

Humidity 52%
Wind Speed N 5 MPH
Barometer 29.63 in (1003.39 mb)
Dewpoint 51°F (11°C)
Visibility NA
Last update 20 Jun 09:40 AM MDT
Extended Forecast for

Byron WY

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 5pm.  Increasing clouds, with a high near 90. Breezy, with a northwest wind 7 to 15 mph becoming southeast in the afternoon. Winds could gust as high as 23 mph.

    High: 90 °F

    Sunny then
    Slight Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 7pm.  Mostly clear, with a low around 53. Breezy, with a west wind 7 to 12 mph becoming north northwest 16 to 21 mph. Winds could gust as high as 31 mph.

    Low: 53 °F

    Slight Chance
    T-storms then
    Mostly Clear
    and Breezy

  • Saturday

    Saturday: A 40 percent chance of showers, mainly after 5pm.  Increasing clouds, with a high near 81. Breezy, with a northwest wind 7 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph.

    High: 81 °F

    Sunny then
    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight.  Mostly cloudy, with a low around 47. Breezy, with a north wind 14 to 22 mph, with gusts as high as 32 mph.  Chance of precipitation is 70%.

    Low: 47 °F

    Showers
    Likely and
    Breezy

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after noon.  Partly sunny, with a high near 64. North northwest wind 10 to 14 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%.

    High: 64 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight.  Partly cloudy, with a low around 42. Breezy, with a north northwest wind 10 to 15 mph becoming light and variable  after midnight. Winds could gust as high as 23 mph.  Chance of precipitation is 20%.

    Low: 42 °F

    Slight Chance
    T-storms and
    Breezy then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 73. Light and variable wind becoming south southeast 5 to 8 mph in the morning.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 90. Breezy, with a northwest wind 7 to 15 mph becoming southeast in the afternoon. Winds could gust as high as 23 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 53. Breezy, with a west wind 7 to 12 mph becoming north northwest 16 to 21 mph. Winds could gust as high as 31 mph.
Saturday
A 40 percent chance of showers, mainly after 5pm. Increasing clouds, with a high near 81. Breezy, with a northwest wind 7 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 47. Breezy, with a north wind 14 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.
Sunday
Showers likely, with thunderstorms also possible after noon. Partly sunny, with a high near 64. North northwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Sunday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 42. Breezy, with a north northwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 73. Light and variable wind becoming south southeast 5 to 8 mph in the morning.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79.
Tuesday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 52.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Thursday
Sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Byron WY
 44.81°N 108.51°W (Elev. 4058 ft)
8:30 am MDT Jun 20, 2025
9am MDT Jun 20, 2025-6pm MDT Jun 26, 2025
 
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