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

Tropical Depression Nine Forms; Heavy Rainfall in the Southwest and Southeast this Weekend

Tropical Depression Nine has formed and will continue to slowly move to the north-northwest in the coming days. As the storm passes close to the east coast of Florida, tropical storm conditions are possible Sunday through Monday. Tropical Storm Watches have been issued. Significant uncertainty remains in the track and intensity, but chances for impacts to the Southeast are increasing. Read More >

Current conditions at

SHENANGO (SGOM8)

Lat: 45.45964°NLon: 111.24447°WElev: 5391.0ft.

NA

54°F

12°C

Humidity 41%
Wind Speed E 1 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 27 Sep 10:39 PM MDT
Extended Forecast for

Gallatin Gateway MT

  • Tonight

    Tonight: Mostly clear, with a low around 48. South southeast wind 7 to 11 mph.

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 79. South wind around 6 mph becoming light and variable.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51. South wind 5 to 11 mph.

    Low: 51 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of rain between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 79. South wind 6 to 8 mph. Chance of precipitation is 20%.

    High: 79 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of rain after 9pm. Mostly cloudy, with a low around 53. South wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

    Low: 53 °F

    Slight Chance
    T-storms then
    Slight Chance
    Rain

  • Tuesday

    Tuesday: A slight chance of rain, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 71. South wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    High: 71 °F

    Slight Chance
    Rain then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight. Mostly cloudy, with a low around 45. South wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 45 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of rain before noon, then a slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69. South wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 69 °F

    Slight Chance
    Rain then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 48. South southeast wind 7 to 11 mph.
Sunday
Sunny, with a high near 79. South wind around 6 mph becoming light and variable.
Sunday Night
Partly cloudy, with a low around 51. South wind 5 to 11 mph.
Monday
A slight chance of rain between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 79. South wind 6 to 8 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of rain after 9pm. Mostly cloudy, with a low around 53. South wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of rain, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 71. South wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight. Mostly cloudy, with a low around 45. South wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Wednesday
A slight chance of rain before noon, then a slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69. South wind 10 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 42.
Friday
A chance of rain. Partly sunny, with a high near 58.
Friday Night
A chance of rain. Mostly cloudy, with a low around 36.
Saturday
A chance of rain. Partly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gallatin Gateway MT
 45.59°N 111.19°W (Elev. 4997 ft)
Last Update:
10:34 pm MDT Sep 27, 2025
Forecast Valid:
11pm MDT Sep 27, 2025-6pm MDT Oct 4, 2025
 
Forecast Discussion
 
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Additional Resources

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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