Extreme Heat and Fire Weather Conditions in the West; Heavy Rain in the Southeast; Poor Air Quality

Extreme heat will begin to peak across the Desert Southwest. Multiple days of hot, dry and windy conditions are expected to bring fire weather concerns for portions of the Four Corners region into the central Great Basin and Rockies. Heavy rainfall and a flash flooding threat continues in the Southeast. Poor air quality persists from the Upper Midwest into the Northeast due to wildfire smoke. Read More >

Current conditions at

Arco (ARC)

Lat: 43.62455°NLon: 113.2971°WElev: 5290.0ft.

NA

88°F

31°C

Humidity 13%
Wind Speed WSW 19 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Heat Index84°F (29°C)
Last update 06 Aug 03:50 PM MDT
Extended Forecast for

3 Miles SSE Mackay ID

  • Tonight

    Tonight: Increasing clouds, with a low around 54. West southwest wind 15 to 20 mph becoming northwest 6 to 11 mph in the evening. Winds could gust as high as 25 mph.

    Low: 54 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 78. Breezy, with a west northwest wind 6 to 11 mph becoming west southwest 17 to 22 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 78 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 44. Breezy, with a west southwest wind 17 to 22 mph becoming northwest 8 to 13 mph after midnight. Winds could gust as high as 28 mph.

    Low: 44 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 75. West wind 6 to 8 mph.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46. North northwest wind 9 to 11 mph.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 54. West southwest wind 15 to 20 mph becoming northwest 6 to 11 mph in the evening. Winds could gust as high as 25 mph.
Thursday
Partly sunny, with a high near 78. Breezy, with a west northwest wind 6 to 11 mph becoming west southwest 17 to 22 mph in the afternoon. Winds could gust as high as 29 mph.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 44. Breezy, with a west southwest wind 17 to 22 mph becoming northwest 8 to 13 mph after midnight. Winds could gust as high as 28 mph.
Friday
Sunny, with a high near 75. West wind 6 to 8 mph.
Friday Night
Mostly clear, with a low around 46. North northwest wind 9 to 11 mph.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Mackay ID
 43.88°N 113.58°W (Elev. 5951 ft)
2:31 pm MDT Aug 6, 2025
4pm MDT Aug 6, 2025-6pm MDT Aug 13, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database