Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

GW2742 Byron (G2742)

Lat: 44.79917°NLon: 108.50567°WElev: 4022.31ft.

NA

81°F

27°C

Humidity 35%
Wind Speed N 0 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 51°F (11°C)
Visibility NA
Heat Index80°F (27°C)
Last update 01 Aug 09:40 PM MDT
Extended Forecast for

Byron WY

Heat Advisory August 1, 09:53pm until August 2, 10:00pm
Red Flag Warning August 2, 01:00pm until August 2, 09:00pm
Click here for hazard details and duration
Heat Advisory
Red Flag Warning
  •  
    Heat Advisory August 1, 09:53pm until August 2, 10:00pm

    NOW until 10:00pm Sun

    Heat Advisory

  • Tonight

    Low: 64 °F

    Patchy Smoke

  • Sunday

    Sunday: Areas of smoke. Mostly cloudy, then gradually becoming sunny and hot, with a high near 100. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 100 °F

    Areas Smoke

  • Sunday Night

    Sunday Night: Patchy smoke. Mostly clear, with a low around 59. Breezy, with a west wind 9 to 18 mph becoming east in the evening. Winds could gust as high as 28 mph.

    Low: 59 °F

    Patchy Smoke
    and Breezy

  • Monday

    Monday: Sunny, with a high near 79. Breezy, with a north wind 11 to 16 mph increasing to 19 to 24 mph in the morning. Winds could gust as high as 36 mph.

    High: 79 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. Breezy, with a north wind 19 to 24 mph becoming light northwest  after midnight. Winds could gust as high as 33 mph.

    Low: 48 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Tuesday

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

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51. North wind 5 to 11 mph, with gusts as high as 22 mph.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

Tonight
Patchy smoke before midnight, then patchy smoke after 4am. Mostly clear, with a low around 64. Southwest wind around 7 mph becoming east northeast after midnight.
Sunday
Areas of smoke. Mostly cloudy, then gradually becoming sunny and hot, with a high near 100. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Patchy smoke. Mostly clear, with a low around 59. Breezy, with a west wind 9 to 18 mph becoming east in the evening. Winds could gust as high as 28 mph.
Monday
Sunny, with a high near 79. Breezy, with a north wind 11 to 16 mph increasing to 19 to 24 mph in the morning. Winds could gust as high as 36 mph.
Monday Night
Mostly clear, with a low around 48. Breezy, with a north wind 19 to 24 mph becoming light northwest after midnight. Winds could gust as high as 33 mph.
Tuesday
Sunny, with a high near 82. Calm wind becoming north 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 51. North wind 5 to 11 mph, with gusts as high as 22 mph.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Sunny, with a high near 95.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 95.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 95.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Byron WY
 44.81°N 108.51°W (Elev. 4058 ft)
9:16 pm MDT Aug 1, 2026
9pm MDT Aug 1, 2026-6pm MDT Aug 8, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database