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

22 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 30. Breezy, with a south wind 24 to 29 mph, with gusts as high as 39 mph.  Chance of precipitation is 80%. Total daytime snow accumulation of 2 to 4 inches possible.

    High: 30 °F

    Breezy.
    Chance Snow
    then Heavy
    Snow

  • Tonight

    Tonight: Snow likely, mainly before 1am.  Mostly cloudy, with a low around 17. Wind chill values as low as zero. Breezy, with a southwest wind 18 to 24 mph, with gusts as high as 32 mph.  Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 17 °F

    Snow Likely
    and Breezy
    then Chance
    Snow

  • Monday

    Monday: Snow likely, mainly after noon.  Mostly cloudy, with a high near 23. Breezy, with a southwest wind around 22 mph, with gusts as high as 31 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 23 °F

    Snow Likely
    and Breezy

  • Monday Night

    Monday Night: A 20 percent chance of snow before midnight.  Mostly cloudy, with a low around 19. West wind 14 to 20 mph, with gusts as high as 26 mph.

    Low: 19 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 29. Breezy, with a west wind 14 to 23 mph, with gusts as high as 33 mph.

    High: 29 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 21. Breezy.

    Low: 21 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Snow.  High near 25. Windy.  Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    High: 25 °F

    Snow and
    Windy

  • Wednesday Night

    Wednesday Night: Snow.  Low around 12. Breezy.  Chance of precipitation is 90%.

    Low: 12 °F

    Snow and
    Breezy

  • Thursday

    Thursday: Snow.  High near 14. Blustery.  Chance of precipitation is 80%.

    High: 14 °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 30. Breezy, with a south wind 24 to 29 mph, with gusts as high as 39 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 17. Wind chill values as low as zero. Breezy, with a southwest wind 18 to 24 mph, with gusts as high as 32 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 23. Breezy, with a southwest wind around 22 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Monday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 19. West wind 14 to 20 mph, with gusts as high as 26 mph.
Tuesday
Mostly sunny, with a high near 29. Breezy, with a west wind 14 to 23 mph, with gusts as high as 33 mph.
Tuesday Night
Mostly cloudy, with a low around 21. Breezy.
Wednesday
Snow. High near 25. Windy. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Wednesday Night
Snow. Low around 12. Breezy. Chance of precipitation is 90%.
Thursday
Snow. High near 14. Blustery. Chance of precipitation is 80%.
Thursday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 8. Blustery.
Friday
A 20 percent chance of snow. Mostly sunny, with a high near 18. Blustery.
Friday Night
Partly cloudy, with a low around 11.
Saturday
Sunny, with a high near 26.
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ABOUT THIS FORECAST

 
Point Forecast:
22 Miles NNW Mackay ID
 44.2°N 113.8°W (Elev. 11401 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