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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Current conditions at

Challis - Challis Airport (KLLJ)

Lat: 44.523°NLon: 114.21611°WElev: 5026.0ft.

Mostly Cloudy

61°F

16°C

Humidity 41%
Wind Speed WNW 4 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 16 Aug 08:55 AM MDT
Extended Forecast for

21 Miles NW Mackay ID

Red Flag Warning August 16, 12:00pm until August 16, 09:00pm
Click here for hazard details and duration
Red Flag Warning

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Increasing clouds, with a high near 81. North wind 5 to 10 mph becoming west northwest 12 to 17 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 81 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers between 7pm and 8pm. Partly cloudy, with a low around 53. Southwest wind 6 to 15 mph becoming east southeast after midnight. Chance of precipitation is 20%.

    Low: 53 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 77. Light south southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 77 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 51. South wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 51 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 82. South southwest wind 5 to 14 mph, with gusts as high as 20 mph.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Increasing clouds, with a high near 81. North wind 5 to 10 mph becoming west northwest 12 to 17 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
A slight chance of showers between 7pm and 8pm. Partly cloudy, with a low around 53. Southwest wind 6 to 15 mph becoming east southeast after midnight. Chance of precipitation is 20%.
Sunday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 77. Light south southwest wind increasing to 5 to 10 mph in the afternoon.
Sunday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 51. South wind 5 to 10 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 82. South southwest wind 5 to 14 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
21 Miles NW Mackay ID
 44.13°N 113.9°W (Elev. 6270 ft)
Last Update:
5:31 am MDT Aug 16, 2025
Forecast Valid:
9am MDT Aug 16, 2025-6pm MDT Aug 22, 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