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

Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

Lat: 46.52361°NLon: 112.80843°WElev: 4327.0ft.

unknown precip

45°F

7°C

Humidity 84%
Wind Speed SSE 7 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Wind Chill41°F (5°C)
Last update 12 Apr 05:30 PM MDT
Extended Forecast for

6 Miles E Elliston MT

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 47. North northwest wind around 10 mph. Chance of precipitation is 90%.

    High: 47 °F

    Showers

  • Tonight

    Tonight: Rain and snow before 2am, then a chance of snow. Some thunder is also possible. Snow level 7800 feet lowering to 6200 feet after midnight . Low around 31. North northeast wind 6 to 10 mph becoming south after midnight. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 31 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Monday

    Monday: Snow likely before 1pm, then rain and snow likely. Mostly cloudy, with a high near 41. West wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 41 °F

    Snow Likely
    then
    Rain/Snow
    Likely

  • Monday Night

    Monday Night: A slight chance of rain, mixing with snow after 9pm, then gradually ending. Mostly cloudy, with a low around 28. West wind 14 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 45. Breezy, with a west southwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 45 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 31. Breezy.

    Low: 31 °F

    Mostly Cloudy
    and Breezy
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: Snow, mainly after noon. High near 43. Breezy. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Chance Snow
    then Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: Snow. Cloudy, with a low around 21.

    Low: 21 °F

    Snow

  • Thursday

    Thursday: Snow. Cloudy, with a high near 27. Blustery.

    High: 27 °F

    Snow and
    Blustery

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 47. North northwest wind around 10 mph. Chance of precipitation is 90%.
Tonight
Rain and snow before 2am, then a chance of snow. Some thunder is also possible. Snow level 7800 feet lowering to 6200 feet after midnight . Low around 31. North northeast wind 6 to 10 mph becoming south after midnight. Chance of precipitation is 90%. Little or no snow accumulation expected.
Monday
Snow likely before 1pm, then rain and snow likely. Mostly cloudy, with a high near 41. West wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Monday Night
A slight chance of rain, mixing with snow after 9pm, then gradually ending. Mostly cloudy, with a low around 28. West wind 14 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 45. Breezy, with a west southwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph.
Tuesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 31. Breezy.
Wednesday
Snow, mainly after noon. High near 43. Breezy. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow. Cloudy, with a low around 21.
Thursday
Snow. Cloudy, with a high near 27. Blustery.
Thursday Night
A chance of snow, mainly before midnight. Mostly cloudy, with a low around 17.
Friday
A chance of snow. Partly sunny, with a high near 34.
Friday Night
A slight chance of snow. Partly cloudy, with a low around 20.
Saturday
A slight chance of snow. Mostly sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles E Elliston MT
 46.56°N 112.32°W (Elev. 6168 ft)
Last Update:
2:01 pm MDT Apr 12, 2026
Forecast Valid:
5pm MDT Apr 12, 2026-6pm MDT Apr 19, 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