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

Areas of Excessive Rainfall; Watching for Tropical Cyclone Development in the Atlantic

Heavy to excessive rainfall Wednesday may bring areas of flash and urban flooding over portions of the Ohio and Tennessee Valleys. In Arizona and New Mexico, heavy to excessive rainfall from monsoon thunderstorms may bring isolated flash and urban flooding Thursday into Saturday. Two tropical waves in the Atlantic are being monitored for tropical cyclone formation within the next few days. Read More >

Current conditions at

FLATTOP MTN. (FTMM8)

Lat: 48.80225°NLon: 113.85713°WElev: 6300.0ft.

NA

52°F

11°C

Humidity 58%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 23 Sep 06:00 PM MDT
Extended Forecast for

16 Miles W St Mary MT

  • Tonight

    Tonight: Mostly clear, with a low around 44. Southwest wind 10 to 14 mph, with gusts as high as 18 mph.

    Low: 44 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 56. Southwest wind 13 to 17 mph, with gusts as high as 24 mph.

    High: 56 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42. West southwest wind 7 to 10 mph becoming east northeast in the evening.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 57. South southwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 57 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 39. West southwest wind 14 to 18 mph, with gusts as high as 29 mph.

    Low: 39 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 46. West southwest wind 13 to 20 mph, with gusts as high as 29 mph.

    High: 46 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40. Southwest wind 18 to 21 mph, with gusts as high as 29 mph.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 51. Southwest wind 14 to 16 mph, with gusts as high as 22 mph.

    High: 51 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 44. Southwest wind 10 to 14 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 56. Southwest wind 13 to 17 mph, with gusts as high as 24 mph.
Wednesday Night
Mostly clear, with a low around 42. West southwest wind 7 to 10 mph becoming east northeast in the evening.
Thursday
Sunny, with a high near 57. South southwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.
Thursday Night
Partly cloudy, with a low around 39. West southwest wind 14 to 18 mph, with gusts as high as 29 mph.
Friday
Sunny, with a high near 46. West southwest wind 13 to 20 mph, with gusts as high as 29 mph.
Friday Night
Mostly clear, with a low around 40. Southwest wind 18 to 21 mph, with gusts as high as 29 mph.
Saturday
Partly sunny, with a high near 51. Southwest wind 14 to 16 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 45.
Monday
A slight chance of rain. Partly sunny, with a high near 51.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 38.
Tuesday
A chance of rain. Partly sunny, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles W St Mary MT
 48.79°N 113.77°W (Elev. 7480 ft)
Last Update:
2:21 pm MDT Sep 23, 2025
Forecast Valid:
6pm MDT Sep 23, 2025-6pm MDT Sep 30, 2025
 
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