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

Henry's Lake (ITD55)

Lat: 44.61831°NLon: 111.33548°WElev: 6617.0ft.

NA

34°F

1°C

Humidity 68%
Wind Speed ESE 9 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility 1.24 mi
Wind Chill27°F (-3°C)
Last update 15 Apr 01:45 AM MDT
Extended Forecast for

13 Miles NNW Island Park ID

Winter Weather Advisory April 15, 06:00pm until April 17, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  • Overnight

    Overnight: Mostly cloudy, with a low around 23. South southwest wind around 16 mph, with gusts as high as 23 mph.

    Low: 23 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Snow, mainly after 10am.  High near 29. Breezy, with a south southwest wind 16 to 21 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 43 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 29 °F

    Breezy. Snow
    Likely then
    Snow

  • Wednesday Night

    Wednesday Night: Snow showers, mainly before midnight, then snow after midnight. The snow could be heavy at times. Some thunder is also possible.  Low around 16. Breezy, with a south southwest wind 18 to 28 mph becoming west northwest after midnight. Winds could gust as high as 41 mph.  Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    Low: 16 °F

    Heavy Snow
    and Breezy

  • Thursday

    Thursday: Snow.  High near 19. Wind chill values as low as zero. West wind 15 to 18 mph, with gusts as high as 25 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    High: 19 °F

    Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight.  Mostly cloudy, with a low around 7. Northwest wind 13 to 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 7 °F

    Snow Likely
    then Chance
    Snow

  • Friday

    Friday: Snow likely, mainly after noon.  Mostly cloudy, with a high near 21. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 21 °F

    Chance Snow
    then Snow
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of snow before midnight.  Partly cloudy, with a low around 8. New snow accumulation of less than a half inch possible.

    Low: 8 °F

    Chance Snow
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 29.

    High: 29 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 23. South southwest wind around 16 mph, with gusts as high as 23 mph.
Wednesday
Snow, mainly after 10am. High near 29. Breezy, with a south southwest wind 16 to 21 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Snow showers, mainly before midnight, then snow after midnight. The snow could be heavy at times. Some thunder is also possible. Low around 16. Breezy, with a south southwest wind 18 to 28 mph becoming west northwest after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Thursday
Snow. High near 19. Wind chill values as low as zero. West wind 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Thursday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 7. Northwest wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Friday
Snow likely, mainly after noon. Mostly cloudy, with a high near 21. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Friday Night
A 30 percent chance of snow before midnight. Partly cloudy, with a low around 8. New snow accumulation of less than a half inch possible.
Saturday
Sunny, with a high near 29.
Saturday Night
Partly cloudy, with a low around 16.
Sunday
Sunny, with a high near 38.
Sunday Night
Partly cloudy, with a low around 23.
Monday
A 20 percent chance of snow. Mostly sunny, with a high near 43.
Monday Night
A 20 percent chance of snow. Partly cloudy, with a low around 27.
Tuesday
A 40 percent chance of snow. Mostly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NNW Island Park ID
 44.73°N 111.41°W (Elev. 8415 ft)
12:31 am MDT Apr 15, 2026
2am 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