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

Lala Impacting Hawaii; Severe Thunderstorm and Flash Flooding Risks; Excessive Heat

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorm, heavy rainfall, and flash flooding threats continue from the Midwest to the Mid-Atlantic and across the central High Plains. Record heat continues for areas of the central/southern Plain into the Southeast Read More >

Current conditions at

Hailey, Friedman Memorial Airport (KSUN)

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

Clear

61°F

16°C

Humidity 55%
Wind Speed WNW 4 MPH
Barometer 30.28 in (1025.4 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 17 Aug 12:55 AM MDT
Extended Forecast for

Arco ID

  • Overnight

    Overnight: Mostly cloudy, with a low around 54. North wind around 7 mph.

    Low: 54 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 82. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 82 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56. West wind 6 to 10 mph becoming north northeast in the evening. Winds could gust as high as 20 mph.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 81. North wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 22 mph.

    High: 81 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54. West wind 6 to 11 mph becoming north after midnight. Winds could gust as high as 21 mph.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 54. North wind around 7 mph.
Monday
Partly sunny, with a high near 82. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 56. West wind 6 to 10 mph becoming north northeast in the evening. Winds could gust as high as 20 mph.
Tuesday
Partly sunny, with a high near 81. North wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 54. West wind 6 to 11 mph becoming north after midnight. Winds could gust as high as 21 mph.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 89.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 62.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Saturday Night
Mostly cloudy, with a low around 57.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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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:
12:31 am MDT Aug 17, 2026
Forecast Valid:
1am MDT Aug 17, 2026-6pm MDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation