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

41°F

5°C

Humidity 75%
Wind Speed N 0 MPH
Barometer 29.67 in (1004.74 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 12 Apr 10:35 AM MDT
Extended Forecast for

21 Miles NNW Mackay ID

  • Today

    Today: A chance of snow before noon, then snow showers, mainly after noon. The snow could be heavy at times. Some thunder is also possible.  High near 31. Breezy, with a south wind 21 to 25 mph, with gusts as high as 37 mph.  Chance of precipitation is 80%. Total daytime snow accumulation of 2 to 4 inches possible.

    High: 31 °F

    Breezy.
    Chance Snow
    then Heavy
    Snow

  • Tonight

    Tonight: Snow likely, mainly before 1am.  Mostly cloudy, with a low around 18. Breezy, with a west southwest wind 16 to 22 mph, with gusts as high as 30 mph.  Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 18 °F

    Snow Likely
    and Breezy
    then Chance
    Snow

  • Monday

    Monday: Snow likely, mainly after noon.  Mostly cloudy, with a high near 25. West southwest wind around 18 mph, with gusts as high as 29 mph.  Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 25 °F

    Snow Likely

  • Monday Night

    Monday Night: A 20 percent chance of snow before midnight.  Mostly cloudy, with a low around 19. West wind 11 to 18 mph, with gusts as high as 24 mph.

    Low: 19 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 31. West wind 11 to 20 mph, with gusts as high as 31 mph.

    High: 31 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow after midnight.  Mostly cloudy, with a low around 22. Breezy.

    Low: 22 °F

    Partly Cloudy
    and Breezy
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: Snow.  High near 27. Breezy.  Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    High: 27 °F

    Breezy. Snow
    Likely then
    Snow

  • Wednesday Night

    Wednesday Night: Snow.  Low around 14. Breezy.  Chance of precipitation is 90%.

    Low: 14 °F

    Snow and
    Breezy

  • Thursday

    Thursday: Snow.  High near 16. Blustery.  Chance of precipitation is 80%.

    High: 16 °F

    Snow and
    Blustery

Detailed Forecast

Today
A chance of snow before noon, then snow showers, mainly after noon. The snow could be heavy at times. Some thunder is also possible. High near 31. Breezy, with a south wind 21 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 2 to 4 inches possible.
Tonight
Snow likely, mainly before 1am. Mostly cloudy, with a low around 18. Breezy, with a west southwest wind 16 to 22 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Monday
Snow likely, mainly after noon. Mostly cloudy, with a high near 25. West southwest wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Monday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 19. West wind 11 to 18 mph, with gusts as high as 24 mph.
Tuesday
Mostly sunny, with a high near 31. West wind 11 to 20 mph, with gusts as high as 31 mph.
Tuesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 22. Breezy.
Wednesday
Snow. High near 27. Breezy. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Wednesday Night
Snow. Low around 14. Breezy. Chance of precipitation is 90%.
Thursday
Snow. High near 16. Blustery. Chance of precipitation is 80%.
Thursday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 9. Blustery.
Friday
A 20 percent chance of snow. Mostly sunny, with a high near 20.
Friday Night
Partly cloudy, with a low around 11.
Saturday
Mostly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles NNW Mackay ID
 44.18°N 113.79°W (Elev. 10712 ft)
5:31 am MDT Apr 12, 2026
10am MDT Apr 12, 2026-6pm MDT Apr 18, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database