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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

NA

75°F

24°C

Humidity 20%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 03 Oct 04:00 PM MDT
Extended Forecast for

Elliston MT

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 37. East wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 76. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40. Calm wind becoming southwest 5 to 7 mph in the evening.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 76. Southwest wind 6 to 15 mph, with gusts as high as 24 mph.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 37. East wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 76. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 40. Calm wind becoming southwest 5 to 7 mph in the evening.
Monday
Mostly sunny, with a high near 76. Southwest wind 6 to 15 mph, with gusts as high as 24 mph.
Monday Night
Mostly clear, with a low around 46. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Mostly sunny, with a high near 71.
Thursday Night
Mostly clear, with a low around 44.
Friday
Mostly sunny, with a high near 72.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 40.
Saturday
A chance of rain. Partly sunny, with a high near 55.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Elliston MT
 46.57°N 112.44°W (Elev. 5020 ft)
Last Update:
2:01 pm MDT Oct 3, 2026
Forecast Valid:
4pm MDT Oct 3, 2026-6pm MDT Oct 10, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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