Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Southern Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over the Northern Mariana Islands. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes through Tuesday. Heavy snow is expected in the Pacific Northwest. Read More >

Current conditions at

LIBBY (LBBM8)

Lat: 48.40361°NLon: 115.53917°WElev: 2070.0ft.

NA

47°F

8°C

Humidity 93%
Wind Speed WNW 1 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 13 Apr 10:25 PM MDT
Extended Forecast for

15 Miles NNW Happys Inn MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. South southwest wind 11 to 14 mph, with gusts as high as 18 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow before 10am, then a chance of snow after 1pm.  Mostly cloudy, with a high near 40. Southwest wind 11 to 16 mph, with gusts as high as 26 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 40 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow.  Low around 33. South southwest wind 14 to 16 mph, with gusts as high as 24 mph.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 33 °F

    Snow

  • Wednesday

    Wednesday: Snow.  High near 38. South southwest wind 11 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 38 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before midnight.  Mostly cloudy, with a low around 26. West southwest wind around 11 mph, with gusts as high as 18 mph.  Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 26 °F

    Snow Likely

  • Thursday

    Thursday: Snow likely.  Mostly cloudy, with a high near 35. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 35 °F

    Snow Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight.  Partly cloudy, with a low around 25.

    Low: 25 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Friday

    Friday: A slight chance of snow after noon.  Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 34. South southwest wind 11 to 14 mph, with gusts as high as 18 mph.
Tuesday
A slight chance of snow before 10am, then a chance of snow after 1pm. Mostly cloudy, with a high near 40. Southwest wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tuesday Night
Snow. Low around 33. South southwest wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday
Snow. High near 38. South southwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 26. West southwest wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Thursday
Snow likely. Mostly cloudy, with a high near 35. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Thursday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around 25.
Friday
A slight chance of snow after noon. Mostly sunny, with a high near 40.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Sunny, with a high near 47.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
A slight chance of rain and snow. Snow level rising to 6200 feet in the afternoon. Mostly sunny, with a high near 52.
Sunday Night
A chance of rain and snow. Snow level 6500 feet lowering to 5600 feet after midnight . Mostly cloudy, with a low around 35.
Monday
A chance of rain and snow. Snow level 5200 feet. Partly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NNW Happys Inn MT
 48.3°N 115.24°W (Elev. 4783 ft)
2:01 pm MDT Apr 13, 2026
10pm MDT Apr 13, 2026-6pm MDT Apr 20, 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