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

Gary Cooper Bridge I-15 MP 242 (MTYEP)

Lat: 47.13948°NLon: 111.85908°WElev: 3427.0ft.

NA

51°F

11°C

Humidity 67%
Wind Speed S 2 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 03 Oct 10:30 PM MDT
Extended Forecast for

4 Miles S Cascade MT

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 43. Light and variable wind.

    Low: 43 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 81. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54. Southwest wind 6 to 15 mph, with gusts as high as 23 mph.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 83. Breezy, with a southwest wind 17 to 24 mph, with gusts as high as 33 mph.

    High: 83 °F

    Decreasing
    Clouds and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 79. South southwest wind around 10 mph.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50. Southwest wind around 6 mph.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 78. South southwest wind 5 to 8 mph.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 43. Light and variable wind.
Sunday
Sunny, with a high near 81. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 54. Southwest wind 6 to 15 mph, with gusts as high as 23 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 83. Breezy, with a southwest wind 17 to 24 mph, with gusts as high as 33 mph.
Monday Night
Partly cloudy, with a low around 54. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 79. South southwest wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 50. Southwest wind around 6 mph.
Wednesday
Sunny, with a high near 78. South southwest wind 5 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 49.
Friday
Mostly sunny, with a high near 77.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 46.
Saturday
A chance of rain. Partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Cascade MT
 47.23°N 111.73°W (Elev. 3399 ft)
Last Update:
10:41 pm MDT Oct 3, 2026
Forecast Valid:
10pm MDT Oct 3, 2026-6pm MDT Oct 10, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation