National Weather Service forecast

St. Mary, Montana Weather

28°Overnight: Mostly Cloudy
Wind SSE 3 mph
7-DayHourlyRadar

St. Mary 7-Day Forecast

  1. Overnight
    28°F
    Mostly Cloudy

    Mostly cloudy, with a low around 28. South southeast wind around 3 mph.

  2. Wednesday
    51°F
    Sunny

    Sunny. High near 51, with temperatures falling to around 43 in the afternoon. South southwest wind around 3 mph.

  3. Wednesday Night
    31°F
    Mostly Clear

    Mostly clear, with a low around 31. South southwest wind 5 to 13 mph, with gusts as high as 30 mph.

  4. Thursday
    42°F
    Partly Sunny
    11% chance of precipitation

    Partly sunny, with a high near 42. Southwest wind around 15 mph, with gusts as high as 32 mph.

  5. Thursday Night
    31°F
    Mostly Cloudy
    9% chance of precipitation

    Mostly cloudy, with a low around 31. West southwest wind 14 to 17 mph, with gusts as high as 41 mph.

  6. Friday
    43°F
    Partly Sunny
    8% chance of precipitation

    Partly sunny, with a high near 43. West southwest wind 17 to 21 mph, with gusts as high as 44 mph.

  7. Friday Night
    35°F
    Mostly Cloudy
    8% chance of precipitation

    Mostly cloudy, with a low around 35. West southwest wind 10 to 24 mph, with gusts as high as 52 mph.

  8. Saturday
    51°F
    Partly Sunny
    6% chance of precipitation

    Partly sunny, with a high near 51. Southwest wind around 10 mph, with gusts as high as 25 mph.

  9. Saturday Night
    39°F
    Mostly Cloudy then Slight Chance Light Rain
    15% chance of precipitation

    A slight chance of rain after 5am. Mostly cloudy, with a low around 39.

  10. Sunday
    53°F
    Chance Light Rain
    26% chance of precipitation

    A chance of rain. Mostly sunny, with a high near 53.

  11. Sunday Night
    34°F
    Chance Light Rain then Slight Chance Rain And Snow
    25% chance of precipitation

    A chance of rain before 2am, then a slight chance of rain and snow between 2am and 5am. Mostly cloudy, with a low around 34.

  12. Monday
    48°F
    Partly Sunny
    3% chance of precipitation

    Partly sunny, with a high near 48.

  13. Monday Night
    35°F
    Mostly Cloudy
    8% chance of precipitation

    Mostly cloudy, with a low around 35.

  14. Tuesday
    50°F
    Slight Chance Light Rain
    21% chance of precipitation

    A slight chance of rain after 11am. Partly sunny, with a high near 50.

Issued by the National Weather Service (TFX office), updated .

St. Mary Hourly Forecast

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Full 100+ hour forecast for St. Mary

St. Mary Weather Radar

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About St. Mary

Population (2020 Census)
54
Coordinates
48.743, -113.427
Elevation
4,554 ft
NWS forecast office
TFX
Time zone
America/Denver
Sunrise today
7:25 AM MST
Sunset today
5:09 PM MST
Daylight today
9 h 44 min

St. Mary Weather Questions

What is the weather forecast for St. Mary, Montana?

Overnight: Mostly cloudy, with a low around 28. South southeast wind around 3 mph. Wednesday: Sunny. High near 51, with temperatures falling to around 43 in the afternoon. South southwest wind around 3 mph.

Will it rain or snow in St. Mary this week?

Not much. The highest chance of precipitation in the 7-day forecast is 26%, Sunday.

How warm and how cold will it get in St. Mary this week?

The warmest day is Sunday, with a high near 53°F. The coldest night is Overnight, with a low near 28°F.

What time are sunrise and sunset in St. Mary today?

Sunrise is at 7:25 AM MST and sunset is at 5:09 PM MST, for 9 h 44 min of daylight.

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