Hurricane and Storm Surge Watches Issued for the Northern Gulf Coast for Strengthening Tropical Storm Isaias

Tropical Storm Isaias is forecast to track toward the central Gulf Coast while strengthening into a hurricane on Thursday. There is an increasing risk of damaging hurricane-force winds and life-threatening storm surge impacts along portions of the northern Gulf Coast Friday into Saturday. Isaias will bring heavy rainfall to the central Gulf Coast and much of the Southeast Friday into the weekend. Read More >

Current conditions at

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

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

NA

62°F

17°C

Humidity 27%
Wind Speed N 14 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 07 Oct 12:45 PM MDT
Extended Forecast for

Westby MT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 63. North northwest wind 11 to 16 mph, with gusts as high as 25 mph.

    High: 63 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 41. North northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 68. Light and variable wind becoming south southwest 5 to 10 mph in the morning.

    High: 68 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 43. East wind around 6 mph.

    Low: 43 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 77. Southeast wind 7 to 14 mph, with gusts as high as 23 mph.

    High: 77 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46. South wind 7 to 9 mph becoming west southwest after midnight.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 64. North northwest wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain before 3am, then a slight chance of rain and snow.  Mostly cloudy, with a low around 32. North wind 18 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 20%.

    Low: 32 °F

    Slight Chance
    Rain then
    Slight Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of rain and snow before 9am, then a chance of rain.  Cloudy, with a high near 43. North wind 18 to 21 mph, with gusts as high as 31 mph.  Chance of precipitation is 30%.

    High: 43 °F

    Chance
    Rain/Snow
    then Slight
    Chance Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 63. North northwest wind 11 to 16 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 41. North northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 68. Light and variable wind becoming south southwest 5 to 10 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 43. East wind around 6 mph.
Friday
Partly sunny, with a high near 77. Southeast wind 7 to 14 mph, with gusts as high as 23 mph.
Friday Night
Partly cloudy, with a low around 46. South wind 7 to 9 mph becoming west southwest after midnight.
Saturday
Partly sunny, with a high near 64. North northwest wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.
Saturday Night
A slight chance of rain before 3am, then a slight chance of rain and snow. Mostly cloudy, with a low around 32. North wind 18 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Sunday
A chance of rain and snow before 9am, then a chance of rain. Cloudy, with a high near 43. North wind 18 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
Sunday Night
A chance of rain before 9pm, then a chance of rain and snow between 9pm and 3am, then a chance of snow after 3am. Cloudy, with a low around 30. North northeast wind 10 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Columbus Day
A chance of rain and snow. Mostly cloudy, with a high near 45. North northeast wind around 9 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Westby MT
 48.87°N 104.05°W (Elev. 1991 ft)
12:35 pm MDT Oct 7, 2026
1pm MDT Oct 7, 2026-6pm MDT Oct 13, 2026
 
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