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

Garrison I-90 MP 174.4 (MTGAR)

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

NA

31°F

-1°C

Humidity 100%
Wind Speed ESE 0 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 08 Oct 02:45 AM MDT
Extended Forecast for

Elliston MT

  • Overnight

    Overnight: Mostly clear, with a low around 32. Southeast wind around 8 mph becoming west.

    Low: 32 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 67. West southwest wind around 8 mph becoming north northeast in the morning.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 34. Light and variable wind becoming south southeast around 6 mph in the evening.

    Low: 34 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 65. East wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35. East northeast wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of rain before noon. Sunny, with a high near 72.

    High: 72 °F

    Slight Chance
    Rain then
    Sunny

  • Friday Night

    Friday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 39. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Slight Chance
    Rain then
    Rain Likely

  • Saturday

    Saturday: Rain. Mostly cloudy, with a high near 55.

    High: 55 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely before 3am, then rain and snow likely. Snow level 7200 feet lowering to 5800 feet after midnight . Mostly cloudy, with a low around 26.

    Low: 26 °F

    Chance Rain
    then
    Rain/Snow
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 32. Southeast wind around 8 mph becoming west.
Wednesday
Sunny, with a high near 67. West southwest wind around 8 mph becoming north northeast in the morning.
Wednesday Night
Mostly clear, with a low around 34. Light and variable wind becoming south southeast around 6 mph in the evening.
Thursday
Sunny, with a high near 65. East wind 6 to 10 mph, with gusts as high as 18 mph.
Thursday Night
Mostly clear, with a low around 35. East northeast wind 6 to 10 mph, with gusts as high as 18 mph.
Friday
A 20 percent chance of rain before noon. Sunny, with a high near 72.
Friday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 39. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. Mostly cloudy, with a high near 55.
Saturday Night
Rain likely before 3am, then rain and snow likely. Snow level 7200 feet lowering to 5800 feet after midnight . Mostly cloudy, with a low around 26.
Sunday
Rain and snow likely. Snow level 5300 feet. Mostly cloudy, with a high near 43.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 21.
Columbus Day
A chance of rain and snow. Partly sunny, with a high near 42.
Monday Night
A slight chance of rain and snow. Partly cloudy, with a low around 22.
Tuesday
A slight chance of rain and snow. Snow level rising to 6600 feet in the afternoon. Mostly sunny, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Elliston MT
 46.57°N 112.44°W (Elev. 5232 ft)
Last Update:
2:30 pm MDT Oct 7, 2025
Forecast Valid:
3am MDT Oct 8, 2025-6pm MDT Oct 14, 2025
 
Forecast Discussion
 
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Additional Resources

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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