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 >

Current conditions at

Hailey, Friedman Memorial Airport (KSUN)

Lat: 43.5°NLon: 114.3°WElev: 5318.0ft.

Clear

66°F

19°C

Humidity 48%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 20 Sep 09:47 PM MDT
Extended Forecast for

Arco ID

  • Tonight

    Tonight: Isolated showers after 5am. Increasing clouds, with a low around 50. West southwest wind 6 to 10 mph becoming north northwest after midnight. Chance of precipitation is 20%.

    Low: 50 °F

    Mostly Clear
    then Isolated
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 72. South wind 5 to 15 mph becoming north northeast in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 60%.

    High: 72 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 43. West northwest wind 8 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    Low: 43 °F

    Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 67. North northwest wind 7 to 9 mph.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 39. North wind 6 to 9 mph.

    Low: 39 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Tonight
Isolated showers after 5am. Increasing clouds, with a low around 50. West southwest wind 6 to 10 mph becoming north northwest after midnight. Chance of precipitation is 20%.
Sunday
A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 72. South wind 5 to 15 mph becoming north northeast in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 43. West northwest wind 8 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Monday
Sunny, with a high near 67. North northwest wind 7 to 9 mph.
Monday Night
Clear, with a low around 39. North wind 6 to 9 mph.
Tuesday
Sunny, with a high near 71.
Tuesday Night
Clear, with a low around 42.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arco ID
 43.64°N 113.3°W (Elev. 6066 ft)
Last Update:
5:31 pm MDT Sep 20, 2025
Forecast Valid:
10pm MDT Sep 20, 2025-6pm MDT Sep 27, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation