10-Day Weather Forecast - Lewistown, MT

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  • 48|25°F
    70% Chance of Rain
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    Today

    48°F

    Strong winds. Cloudy. Patchy blowing dust early in the morning. Patchy blowing dust in the afternoon. Slight chance of rain early in the morning then rain likely late in the morning. Chance of snow in the late morning and afternoon. Snow accumulation up to 2 inches. Snow level 3200 feet. Highs in the upper 40s. West winds 30 to 55 mph with gusts to around 85 mph. Chance of precipitation 70 percent.

    Tonight

    25°F

    Patchy blowing snow in the evening. Chance of snow in the evening then snow after midnight. Snow accumulation of 1 to 5 inches. Lows in the mid 20s. Northwest winds 15 to 20 mph with gusts to around 55 mph shifting to the west 5 to 15 mph after midnight. Chance of snow near 100 percent.

    Hourly details
  • Day

    30°F

    Colder snow. Snow accumulation of 1 to 6 inches. Highs in the lower 30s. Northwest winds 5 to 15 mph. Chance of snow near 100 percent.

    Night

    21°F

    Snow. Heavy snow accumulations. Lows in the lower 20s. Northeast winds 5 to 10 mph shifting to the east after midnight. Chance of snow near 100 percent.

    Hourly details
  • Weekend Weather

  • Day

    32°F

    Snow. Heavy snow accumulations. Highs around 30. East winds 5 to 15 mph. Gusts up to 30 mph in the afternoon. Chance of snow near 100 percent.

    Night

    5°F

    Colder. Mostly cloudy. Snow likely in the evening then slight chance of snow after midnight. Light snow accumulations. Lows around 6. Chance of snow 70 percent.

    Hourly details
  • Day

    28°F

    Partly sunny with a 20 percent chance of snow. Highs in the upper 20s.

    Night

    13°F

    Mostly cloudy. Slight chance of snow in the evening then chance of snow after midnight. Lows around 12. Chance of snow 50 percent.

    Hourly details
  • Day

    45°F

    Not as cold. Mostly cloudy. Chance of snow in the morning then slight chance of rain and snow in the afternoon. Highs in the lower 40s. Chance of precipitation 50 percent.

    Night

    36°F

    Not as cool. Mostly cloudy. Chance of rain and slight chance of snow in the evening then slight chance of rain and snow after midnight. Lows in the mid 30s. Chance of precipitation 40 percent.

    Hourly details
  • Day

    60°F

    Breezy warmer. Mostly cloudy. Highs in the upper 50s. Lows in the lower 40s.

    Night

    42°F

    Breezy warmer. Mostly cloudy. Highs in the upper 50s. Lows in the lower 40s.

    Hourly details
  • Day

    64°F

    Warmer. Partly sunny. Highs in the upper 60s.

    Night

    47°F

    Mostly clear. Low temperature around 47F. Dew point will be around 30F with an average humidity of 43%. Winds will be 14 mph from the SW.

  • Day

    68°F

    Sunny. High temperature around 68F. Dew point will be around 31F with an average humidity of 36%. Winds will be 15 mph from the W.

    Night

    49°F

    Partly cloudy. Low temperature around 49F. Dew point will be around 35F with an average humidity of 51%. Winds will be 10 mph from the W.

  • Day

    67°F

    Partly cloudy. High temperature around 67F. Dew point will be around 28F with an average humidity of 31%. Winds will be 11 mph from the W.

    Night

    45°F

    Mostly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 45F. Dew point will be around 33F with an average humidity of 49%. Winds will be 9 mph from the W.

  • Weekend Weather

  • Day

    58°F

    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 58F. Dew point will be around 22F with an average humidity of 31%. Winds will be 11 mph from the W.

    Night

    37°F

    Mostly clear. Low temperature around 37F. Dew point will be around 24F with an average humidity of 49%. Winds will be 11 mph from the W.