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

Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

BNSF Java East (JVEMT)

Lat: 48.23587°NLon: 113.56453°WElev: 4043.0ft.

NA

54°F

12°C

Humidity 45%
Wind Speed ESE 2 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 21 Apr 11:00 PM MDT
Extended Forecast for

13 Miles E Swan Lake MT

Winter Weather Advisory April 22, 06:00pm until April 23, 06:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Mostly cloudy, then gradually becoming clear, with a low around 44. Calm wind.

    Low: 44 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Showers and thunderstorms likely before 1pm, then showers and possibly a thunderstorm between 1pm and 3pm, then rain after 3pm. High near 63. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 63 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Rain before 3am, then rain, possibly mixed with snow. Snow level 6300 feet lowering to 4600 feet after midnight . Low around 33. Light west wind. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain then
    Rain/Snow

  • Thursday

    Thursday: Snow. High near 44. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    High: 44 °F

    Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 24. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Snow Likely

  • Friday

    Friday: Snow likely. Mostly cloudy, with a high near 43. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Snow Likely

  • Friday Night

    Friday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 22. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Chance Snow

  • Saturday

    Saturday: A chance of snow before 3pm, then a chance of rain and snow. Partly sunny, with a high near 45.

    High: 45 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A slight chance of snow. Mostly cloudy, with a low around 21.

    Low: 21 °F

    Slight Chance
    Snow

Detailed Forecast

Overnight
Mostly cloudy, then gradually becoming clear, with a low around 44. Calm wind.
Wednesday
Showers and thunderstorms likely before 1pm, then showers and possibly a thunderstorm between 1pm and 3pm, then rain after 3pm. High near 63. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Rain before 3am, then rain, possibly mixed with snow. Snow level 6300 feet lowering to 4600 feet after midnight . Low around 33. Light west wind. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Snow. High near 44. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Thursday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 24. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Snow likely. Mostly cloudy, with a high near 43. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 22. New snow accumulation of less than a half inch possible.
Saturday
A chance of snow before 3pm, then a chance of rain and snow. Partly sunny, with a high near 45.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 21.
Sunday
A chance of snow. Partly sunny, with a high near 48.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 24.
Monday
A chance of rain and snow. Mostly sunny, with a high near 53.
Monday Night
A slight chance of rain. Snow level 5000 feet. Partly cloudy, with a low around 30.
Tuesday
A chance of rain. Snow level 4500 feet rising to 5800 feet in the afternoon. Mostly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles E Swan Lake MT
 47.95°N 113.56°W (Elev. 3819 ft)
Last Update:
2:00 pm MDT Apr 21, 2026
Forecast Valid:
12am MDT Apr 22, 2026-6pm MDT Apr 28, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation