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

Arco (ARC)

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

NA

69°F

21°C

Humidity 36%
Wind Speed NW 4 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 30 Jun 09:50 PM MDT
Extended Forecast for

14 Miles NNW Mackay ID

  • Tonight

    Tonight: Mostly clear, with a low around 49. Southwest wind 6 to 8 mph.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 3pm. Snow level 13200 feet rising to 13700 feet in the afternoon. Mostly sunny, with a high near 67. South southwest wind 6 to 13 mph, with gusts as high as 20 mph.

    High: 67 °F

    Sunny then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers. Snow level 13500 feet. Partly cloudy, with a low around 49. West southwest wind 6 to 11 mph becoming northeast in the evening.

    Low: 49 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Snow level 13200 feet. Partly sunny, with a high near 65. South southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 30%.

    High: 65 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly before midnight. Snow level 13200 feet. Mostly cloudy, with a low around 46. Southwest wind 7 to 16 mph, with gusts as high as 24 mph.

    Low: 46 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after noon. Snow level 12800 feet. Partly sunny, with a high near 58. Chance of precipitation is 50%.

    High: 58 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Snow level 12800 feet lowering to 12100 feet after midnight . Mostly cloudy, with a low around 41. Chance of precipitation is 50%.

    Low: 41 °F

    Chance
    Showers

  • Independence Day

    Independence Day: A chance of showers, with thunderstorms also possible after noon. Snow level 11800 feet. Partly sunny, with a high near 54. Chance of precipitation is 50%.

    High: 54 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Snow level 12100 feet lowering to 11500 feet after midnight . Partly cloudy, with a low around 39. Chance of precipitation is 30%.

    Low: 39 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 49. Southwest wind 6 to 8 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 3pm. Snow level 13200 feet rising to 13700 feet in the afternoon. Mostly sunny, with a high near 67. South southwest wind 6 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
A 20 percent chance of showers. Snow level 13500 feet. Partly cloudy, with a low around 49. West southwest wind 6 to 11 mph becoming northeast in the evening.
Wednesday
A chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Snow level 13200 feet. Partly sunny, with a high near 65. South southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 30%.
Wednesday Night
A 30 percent chance of showers, mainly before midnight. Snow level 13200 feet. Mostly cloudy, with a low around 46. Southwest wind 7 to 16 mph, with gusts as high as 24 mph.
Thursday
A chance of showers, with thunderstorms also possible after noon. Snow level 12800 feet. Partly sunny, with a high near 58. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Snow level 12800 feet lowering to 12100 feet after midnight . Mostly cloudy, with a low around 41. Chance of precipitation is 50%.
Independence Day
A chance of showers, with thunderstorms also possible after noon. Snow level 11800 feet. Partly sunny, with a high near 54. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Snow level 12100 feet lowering to 11500 feet after midnight . Partly cloudy, with a low around 39. Chance of precipitation is 30%.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Snow level 11400 feet rising to 12000 feet in the afternoon. Mostly sunny, with a high near 54.
Saturday Night
A 20 percent chance of showers. Snow level 12100 feet. Partly cloudy, with a low around 38.
Sunday
A 20 percent chance of showers and thunderstorms. Snow level 11700 feet rising to 12400 feet in the afternoon. Mostly sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles NNW Mackay ID
 44.11°N 113.66°W (Elev. 10600 ft)
Last Update:
5:31 pm MDT Jun 30, 2025
Forecast Valid:
10pm MDT Jun 30, 2025-6pm MDT Jul 7, 2025
 
Forecast Discussion
 
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Additional Resources

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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