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.

Clear

37°F

3°C

Humidity 86%
Wind Speed NW 3 MPH
Barometer 29.75 in (1007.45 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 12 Apr 02:35 AM MDT
Extended Forecast for

7 Miles NNE Mackay ID

  • Overnight

    Overnight: A 20 percent chance of snow after 5am.  Mostly cloudy, with a low around 20. South wind around 11 mph.

    Low: 20 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: Snow likely before noon, then snow showers, mainly after noon. Some thunder is also possible.  High near 26. Windy, with a south southeast wind 13 to 18 mph increasing to 26 to 31 mph in the afternoon. Winds could gust as high as 41 mph.  Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 26 °F

    Snow Showers
    and Windy

  • Sunday Night

    Sunday Night: A 50 percent chance of snow between 11pm and 5am.  Partly cloudy, with a low around 15. Wind chill values as low as -2. Breezy, with a west southwest wind 18 to 25 mph, with gusts as high as 32 mph.  New snow accumulation of less than one inch possible.

    Low: 15 °F

    Chance Snow
    and Breezy

  • Monday

    Monday: Snow likely, mainly after noon.  Mostly cloudy, with a high near 22. Wind chill values as low as -2. Breezy, with a west southwest wind 20 to 22 mph, with gusts as high as 30 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 22 °F

    Chance Snow
    then Snow
    Likely and
    Breezy

  • Monday Night

    Monday Night: A 20 percent chance of snow before midnight.  Partly cloudy, with a low around 16. West northwest wind 17 to 21 mph, with gusts as high as 26 mph.

    Low: 16 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow after noon.  Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 19. Breezy.

    Low: 19 °F

    Partly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Snow.  High near 24. Windy.  Chance of precipitation is 90%.

    High: 24 °F

    Snow Likely
    and Breezy
    then Snow and
    Windy

  • Wednesday Night

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

    Low: 12 °F

    Snow and
    Breezy

Detailed Forecast

Overnight
A 20 percent chance of snow after 5am. Mostly cloudy, with a low around 20. South wind around 11 mph.
Sunday
Snow likely before noon, then snow showers, mainly after noon. Some thunder is also possible. High near 26. Windy, with a south southeast wind 13 to 18 mph increasing to 26 to 31 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Sunday Night
A 50 percent chance of snow between 11pm and 5am. Partly cloudy, with a low around 15. Wind chill values as low as -2. Breezy, with a west southwest wind 18 to 25 mph, with gusts as high as 32 mph. New snow accumulation of less than one inch possible.
Monday
Snow likely, mainly after noon. Mostly cloudy, with a high near 22. Wind chill values as low as -2. Breezy, with a west southwest wind 20 to 22 mph, with gusts as high as 30 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. Partly cloudy, with a low around 16. West northwest wind 17 to 21 mph, with gusts as high as 26 mph.
Tuesday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 27.
Tuesday Night
Partly cloudy, with a low around 19. Breezy.
Wednesday
Snow. High near 24. Windy. Chance of precipitation is 90%.
Wednesday Night
Snow. Low around 12. Breezy. Chance of precipitation is 90%.
Thursday
Snow. High near 14. Breezy. Chance of precipitation is 80%.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 6. Blustery.
Friday
A 30 percent chance of snow. Mostly sunny, with a high near 16. Blustery.
Friday Night
Partly cloudy, with a low around 9.
Saturday
Sunny, with a high near 24.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NNE Mackay ID
 44.01°N 113.58°W (Elev. 10722 ft)
12:31 am MDT Apr 12, 2026
2am 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