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

Comertown Turn-Off MT-5 MP 13.4 (MTCOM)

Lat: 48.81°NLon: 104.2529°WElev: 2359.0ft.

NA

51°F

11°C

Humidity 47%
Wind Speed W 1 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 04 Oct 08:45 AM MDT
Extended Forecast for

Westby MT

  • Today

    Today: Sunny, with a high near 65. Light south wind becoming southeast 5 to 10 mph in the afternoon.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 43. South southeast wind 9 to 15 mph, with gusts as high as 24 mph.

    Low: 43 °F

    Increasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 77. South southeast wind 14 to 16 mph becoming west in the afternoon. Winds could gust as high as 24 mph.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. Northwest wind 7 to 10 mph.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69. Northwest wind 7 to 17 mph, with gusts as high as 28 mph.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 41. Northwest wind 6 to 8 mph.

    Low: 41 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 67. North northwest wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 67 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 40. North wind around 7 mph.

    Low: 40 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 61. North northwest wind 5 to 9 mph.

    High: 61 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 65. Light south wind becoming southeast 5 to 10 mph in the afternoon.
Tonight
Increasing clouds, with a low around 43. South southeast wind 9 to 15 mph, with gusts as high as 24 mph.
Monday
Sunny, with a high near 77. South southeast wind 14 to 16 mph becoming west in the afternoon. Winds could gust as high as 24 mph.
Monday Night
Mostly clear, with a low around 45. Northwest wind 7 to 10 mph.
Tuesday
Sunny, with a high near 69. Northwest wind 7 to 17 mph, with gusts as high as 28 mph.
Tuesday Night
Partly cloudy, with a low around 41. Northwest wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 67. North northwest wind 5 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly cloudy, with a low around 40. North wind around 7 mph.
Thursday
Partly sunny, with a high near 61. North northwest wind 5 to 9 mph.
Thursday Night
Mostly cloudy, with a low around 39. North northeast wind around 6 mph.
Friday
Partly sunny, with a high near 65. Southeast wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Partly sunny, with a high near 59. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Westby MT
 48.87°N 104.05°W (Elev. 1991 ft)
Last Update:
3:30 am MDT Oct 4, 2026
Forecast Valid:
9am MDT Oct 4, 2026-6pm MDT Oct 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation