Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Partly Cloudy

55°F

13°C

Humidity 35%
Wind Speed WSW 12 MPH
Barometer 29.67 in (1004.74 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 15 Apr 02:35 PM MDT
Extended Forecast for

22 Miles NNW Mackay ID

  • This Afternoon

    This Afternoon: Snow likely, mainly after 5pm.  Mostly cloudy, with a high near 26. Breezy, with a southwest wind 26 to 28 mph, with gusts as high as 43 mph.  Chance of precipitation is 70%. Total daytime snow accumulation of 1 to 3 inches possible.

    High: 26 °F

    Snow Likely
    and Breezy

  • Tonight

    Tonight: Snow. The snow could be heavy at times.  Low around 8. Wind chill values as low as -8. Breezy, with a west wind 20 to 28 mph, with gusts as high as 41 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 8 °F

    Breezy. Heavy
    Snow then
    Snow Likely

  • Thursday

    Thursday: Snow, mainly after 10am.  High near 11. Wind chill values as low as -12. Blustery, with a west wind 18 to 25 mph becoming north in the afternoon. Winds could gust as high as 37 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 11 °F

    Snow and
    Blustery

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before midnight.  Mostly cloudy, with a low around 5. Wind chill values as low as -14. Blustery, with a northwest wind 20 to 25 mph, with gusts as high as 36 mph.  New snow accumulation of less than a half inch possible.

    Low: 5 °F

    Blustery.
    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: A 30 percent chance of snow after noon.  Mostly sunny, with a high near 18. Northwest wind around 18 mph, with gusts as high as 28 mph.  Little or no snow accumulation expected.

    High: 18 °F

    Mostly Sunny
    then Chance
    Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 10.

    Low: 10 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 29.

    High: 29 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Snow likely, mainly after 5pm. Mostly cloudy, with a high near 26. Breezy, with a southwest wind 26 to 28 mph, with gusts as high as 43 mph. Chance of precipitation is 70%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Snow. The snow could be heavy at times. Low around 8. Wind chill values as low as -8. Breezy, with a west wind 20 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Thursday
Snow, mainly after 10am. High near 11. Wind chill values as low as -12. Blustery, with a west wind 18 to 25 mph becoming north in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 5. Wind chill values as low as -14. Blustery, with a northwest wind 20 to 25 mph, with gusts as high as 36 mph. New snow accumulation of less than a half inch possible.
Friday
A 30 percent chance of snow after noon. Mostly sunny, with a high near 18. Northwest wind around 18 mph, with gusts as high as 28 mph. Little or no snow accumulation expected.
Friday Night
Partly cloudy, with a low around 10.
Saturday
Sunny, with a high near 29.
Saturday Night
Partly cloudy, with a low around 19.
Sunday
Mostly sunny, with a high near 38.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 43.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
A slight chance of rain and snow. Mostly sunny, with a high near 43. Breezy. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
22 Miles NNW Mackay ID
 44.18°N 113.79°W (Elev. 10712 ft)
1:36 pm MDT Apr 15, 2026
2pm MDT Apr 15, 2026-6pm MDT Apr 21, 2026
 
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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