National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Hazardous Weather Conditions

Current conditions at

Logan Pass Visitors Center (LGPVC)

Lat: 48.6949°NLon: 113.7169°WElev: 6775.0ft.

NA

33°F

1°C

Humidity 99%
Wind Speed WNW 14 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 33°F (1°C)
Visibility NA
Wind Chill23°F (-5°C)
Last update 18 Mar 03:00 AM MDT
Extended Forecast for

9 Miles SW St Mary MT

High Wind Warning March 18, 06:00am until March 18, 09:00pm
Click here for hazard details and duration
High Wind Warning

  • Overnight

    Overnight: Snow likely, mainly after 5am. Mostly cloudy, with a low around 33. Windy, with a west southwest wind 41 to 43 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.

    Low: 33 °F

    Snow Likely
    and Windy

  • Wednesday

    Wednesday: Snow likely, mainly before noon. Mostly cloudy, with a high near 35. Windy, with a west southwest wind 34 to 41 mph, with gusts as high as 55 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 35 °F

    Snow Likely
    and Windy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow between 11pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 33. Windy, with a west southwest wind 37 to 41 mph, with gusts as high as 55 mph.

    Low: 33 °F

    Slight Chance
    Snow and
    Windy

  • Thursday

    Thursday: A 30 percent chance of snow, mainly after noon. Mostly sunny, with a high near 38. Windy, with a west southwest wind around 41 mph, with gusts as high as 55 mph. Little or no snow accumulation expected.

    High: 38 °F

    Chance Snow
    and Windy

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 35. Windy, with a west southwest wind 38 to 41 mph, with gusts as high as 55 mph. Little or no snow accumulation expected.

    Low: 35 °F

    Chance Snow
    and Windy

  • Friday

    Friday: Snow likely before 3pm, then rain likely, possibly mixed with snow. Mostly cloudy, with a high near 38. Windy, with a west southwest wind 32 to 37 mph, with gusts as high as 55 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Windy. Snow
    Likely then
    Rain/Snow
    Likely

  • Friday Night

    Friday Night: Rain, possibly mixed with snow, becoming all snow after 9pm. Low around 29. Windy, with a southwest wind around 34 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Windy.
    Rain/Snow
    then Snow
    Likely

  • Saturday

    Saturday: Snow likely, mainly before noon. Partly sunny, with a high near 32. Breezy, with a west southwest wind 25 to 29 mph, with gusts as high as 40 mph.

    High: 32 °F

    Snow Likely
    and Breezy

  • Saturday Night

    Saturday Night: A slight chance of snow before midnight. Partly cloudy, with a low around 18. Breezy.

    Low: 18 °F

    Slight Chance
    Snow and
    Breezy then
    Mostly Clear

Detailed Forecast

Overnight
Snow likely, mainly after 5am. Mostly cloudy, with a low around 33. Windy, with a west southwest wind 41 to 43 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.
Wednesday
Snow likely, mainly before noon. Mostly cloudy, with a high near 35. Windy, with a west southwest wind 34 to 41 mph, with gusts as high as 55 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
A 20 percent chance of snow between 11pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 33. Windy, with a west southwest wind 37 to 41 mph, with gusts as high as 55 mph.
Thursday
A 30 percent chance of snow, mainly after noon. Mostly sunny, with a high near 38. Windy, with a west southwest wind around 41 mph, with gusts as high as 55 mph. Little or no snow accumulation expected.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 35. Windy, with a west southwest wind 38 to 41 mph, with gusts as high as 55 mph. Little or no snow accumulation expected.
Friday
Snow likely before 3pm, then rain likely, possibly mixed with snow. Mostly cloudy, with a high near 38. Windy, with a west southwest wind 32 to 37 mph, with gusts as high as 55 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
Rain, possibly mixed with snow, becoming all snow after 9pm. Low around 29. Windy, with a southwest wind around 34 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday
Snow likely, mainly before noon. Partly sunny, with a high near 32. Breezy, with a west southwest wind 25 to 29 mph, with gusts as high as 40 mph.
Saturday Night
A slight chance of snow before midnight. Partly cloudy, with a low around 18. Breezy.
Sunday
Sunny, with a high near 31. Breezy.
Sunday Night
Partly cloudy, with a low around 21. Breezy.
Monday
Partly sunny, with a high near 32. Breezy.
Monday Night
A slight chance of snow. Mostly cloudy, with a low around 23. Breezy.
Tuesday
A chance of snow. Mostly cloudy, with a high near 33. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles SW St Mary MT
 48.64°N 113.58°W (Elev. 8199 ft)
Last Update:
1:27 am MDT Mar 18, 2026
Forecast Valid:
4am MDT Mar 18, 2026-6pm MDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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