Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Current conditions at

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

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

NA

58°F

14°C

Humidity 50%
Wind Speed E 13 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 16 Sep 05:15 PM MDT
Extended Forecast for

9 Miles WSW Westby MT

  • Tonight

    Tonight: Mostly clear, with a low around 40. Northeast wind 5 to 10 mph becoming light and variable  in the evening.

    Low: 40 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 69. Light east southeast wind becoming southeast 16 to 21 mph in the morning. Winds could gust as high as 31 mph.

    High: 69 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 55. Southeast wind 13 to 17 mph, with gusts as high as 29 mph.  Chance of precipitation is 50%.

    Low: 55 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 74. Southeast wind 7 to 11 mph, with gusts as high as 18 mph.  Chance of precipitation is 70%.

    High: 74 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm.  Cloudy, with a low around 55. Northeast wind 8 to 10 mph.  Chance of precipitation is 70%.

    Low: 55 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 9am, then showers likely between 9am and noon, then showers likely and possibly a thunderstorm after noon.  Cloudy, with a high near 67. Northeast wind 11 to 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 60%.

    High: 67 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely.  Cloudy, with a low around 52. East wind 11 to 14 mph, with gusts as high as 22 mph.  Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely

  • Sunday

    Sunday: A 50 percent chance of showers.  Mostly cloudy, with a high near 68. East southeast wind around 11 mph, with gusts as high as 21 mph.

    High: 68 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 51. Southeast wind 7 to 9 mph.

    Low: 51 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 40. Northeast wind 5 to 10 mph becoming light and variable in the evening.
Thursday
Mostly sunny, with a high near 69. Light east southeast wind becoming southeast 16 to 21 mph in the morning. Winds could gust as high as 31 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Southeast wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. Southeast wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 55. Northeast wind 8 to 10 mph. Chance of precipitation is 70%.
Saturday
Showers likely and possibly a thunderstorm before 9am, then showers likely between 9am and noon, then showers likely and possibly a thunderstorm after noon. Cloudy, with a high near 67. Northeast wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Saturday Night
Showers likely. Cloudy, with a low around 52. East wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 68. East southeast wind around 11 mph, with gusts as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 51. Southeast wind 7 to 9 mph.
Monday
Mostly sunny, with a high near 72. South southeast wind 7 to 14 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 51. South southeast wind 9 to 11 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
Mostly sunny, with a high near 73.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WSW Westby MT
 48.82°N 104.24°W (Elev. 2297 ft)
3:31 pm MDT Sep 16, 2026
5pm MDT Sep 16, 2026-6pm MDT Sep 23, 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