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

Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Mostly Cloudy

43°F

6°C

Humidity 93%
Wind Speed NNE 3 MPH
Barometer 29.79 in (1008.81 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 11 Apr 02:20 AM MDT
Extended Forecast for

21 Miles N Mackay ID

  • Overnight

    Overnight: Mostly cloudy, with a low around 37. Southeast wind around 10 mph.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Rain showers before 4pm, then rain likely, possibly mixed with snow showers between 4pm and 5pm, then rain showers likely after 5pm. Some thunder is also possible. Snow level 8800 feet lowering to 8200 feet in the afternoon . High near 51. South southeast wind 10 to 20 mph becoming west southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 51 °F

    Chance Rain
    then
    Rain/Snow

  • Saturday Night

    Saturday Night: A chance of rain and snow before 7pm, then a slight chance of rain between 7pm and 8pm. Snow level 8000 feet lowering to 7200 feet after midnight . Mostly cloudy, with a low around 32. West wind 9 to 14 mph becoming light and variable. Winds could gust as high as 21 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 32 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: Snow before noon, then rain and snow between noon and 3pm, then rain, possibly mixed with snow showers after 3pm. Some thunder is also possible. Snow level rising to 7700 feet in the afternoon. High near 46. Southeast wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 46 °F

    Snow then
    Rain/Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 29. Southwest wind 6 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 29 °F

    Snow Likely

  • Monday

    Monday: Snow, mainly after noon. High near 39. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 39 °F

    Chance Snow
    then Snow

  • Monday Night

    Monday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 27. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Chance Snow

  • Tuesday

    Tuesday: A 20 percent chance of snow. Mostly sunny, with a high near 44.

    High: 44 °F

    Slight Chance
    Snow

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 37. Southeast wind around 10 mph.
Saturday
Rain showers before 4pm, then rain likely, possibly mixed with snow showers between 4pm and 5pm, then rain showers likely after 5pm. Some thunder is also possible. Snow level 8800 feet lowering to 8200 feet in the afternoon . High near 51. South southeast wind 10 to 20 mph becoming west southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Saturday Night
A chance of rain and snow before 7pm, then a slight chance of rain between 7pm and 8pm. Snow level 8000 feet lowering to 7200 feet after midnight . Mostly cloudy, with a low around 32. West wind 9 to 14 mph becoming light and variable. Winds could gust as high as 21 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
Snow before noon, then rain and snow between noon and 3pm, then rain, possibly mixed with snow showers after 3pm. Some thunder is also possible. Snow level rising to 7700 feet in the afternoon. High near 46. Southeast wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 29. Southwest wind 6 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Monday
Snow, mainly after noon. High near 39. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Monday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 27. New snow accumulation of less than a half inch possible.
Tuesday
A 20 percent chance of snow. Mostly sunny, with a high near 44.
Tuesday Night
Partly cloudy, with a low around 27.
Wednesday
Snow likely, mainly after noon. Mostly cloudy, with a high near 41. Breezy. Chance of precipitation is 70%.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 23. Breezy. Chance of precipitation is 70%.
Thursday
Snow likely. Mostly cloudy, with a high near 32. Chance of precipitation is 60%.
Thursday Night
A 20 percent chance of snow. Partly cloudy, with a low around 16.
Friday
A 20 percent chance of snow. Mostly sunny, with a high near 35.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles N Mackay ID
 44.22°N 113.62°W (Elev. 7218 ft)
Last Update:
12:31 am MDT Apr 11, 2026
Forecast Valid:
2am MDT Apr 11, 2026-6pm MDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation