10-Day Weather Forecast - Saint Mary, MT

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  • |45°F
    Partly Cloudy
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    Tonight

    45°F

    Breezy. Mostly cloudy in the late evening and early morning then becoming partly cloudy. Near steady temperature in the upper 30s. Southwest winds 10 to 25 mph. Gusts up to 35 mph increasing to 45 mph after midnight.

    Hourly details
  • Day

    49°F

    Windy sunny. Highs 38 to 50. Southwest winds 15 to 30 mph with gusts to around 50 mph.

    Night

    35°F

    Breezy colder. Mostly clear. Lows 27 to 33. West winds 10 to 25 mph. Gusts up to 50 mph decreasing to 40 mph after midnight.

    Hourly details
  • Day

    35°F

    Mostly sunny. Near steady temperature in the lower 30s. Southwest winds 15 to 20 mph with gusts to around 35 mph shifting to the northwest 5 to 15 mph in the afternoon.

    Night

    24°F

    Colder. Partly cloudy. Lows 16 to 22. Northwest winds up to 10 mph.

    Hourly details
  • Day

    37°F

    Mostly sunny. Highs 28 to 38.

    Night

    29°F

    Mostly clear. Lows 19 to 28. Highs 30 to 43.

    Hourly details
  • Weekend Weather

  • Day

    42°F

    Mostly clear. Lows 19 to 28. Highs 30 to 43.

    Night

    29°F

    Mostly clear. Lows 19 to 28. Highs 30 to 43.

    Hourly details
  • Day

    36°F

    Mostly clear. Lows 19 to 28. Highs 30 to 43.

    Night

    27°F

    Mostly clear. Lows 19 to 28. Highs 30 to 43.

    Hourly details
  • Day

    39°F

    Partly cloudy. Highs 30 to 40. Lows 21 to 27.

    Night

    28°F

    Partly cloudy. Highs 30 to 40. Lows 21 to 27.

    Hourly details
  • Day

    32°F

    Partly sunny. Highs 27 to 37.

    Night

    19°F

    Mostly cloudy with a slight chance of snow. Chance of precipitation 30%. Low temperature around 18F. Dew point will be around 16F with an average humidity of 75%. Winds will be 4 mph from the N.

  • Day

    19°F

    Cloudy with a chance of snow. Chance of precipitation 40%. High temperature around 19F. Dew point will be around 12F with an average humidity of 76%. Winds will be 7 mph from the N.

    Night

    8°F

    Cloudy with a chance of snow. Chance of precipitation 45%. Low temperature around 8F. Dew point will be around 7F with an average humidity of 79%. Winds will be 5 mph from the NE.

  • Day

    12°F

    Cloudy with a chance of snow. Chance of precipitation 45%. High temperature around 12F. Dew point will be around 5F with an average humidity of 77%. Winds will be 6 mph from the NE.

    Night

    6°F

    Cloudy with a chance of snow. Chance of precipitation 45%. Low temperature around 6F. Dew point will be around 2F with an average humidity of 77%. Winds will be 2 mph from the N.