Lewistown, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Clear
    30°
    Monday 4/22
    Forecast night icon
    30°
    Clear
    Hourly
    Night Details
    Clear. Low temperature around 30F. Dew point will be around 16F with an average humidity of 52%. Winds will be 10 mph from the NW.
  • Forecast day icon
    Tuesday
    Sunny
    59°
    Forecast night icon
    Night
    Partly Cloudy
    38°
    Tuesday 4/23
    Day
    59°
    Sunny
    Forecast day icon
    Night
    38°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs 60 to 65. West winds 5 to 10 mph shifting to the east in the afternoon.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. Lows 35 to 40. Southeast winds 5 to 15 mph.
  • Forecast day icon
    Wednesday
    Sunny
    69°
    Forecast night icon
    Night
    Mostly Cloudy
    45°
    Wednesday 4/24
    Day
    69°
    Sunny
    Forecast day icon
    Night
    45°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Warmer sunny. Highs 70 to 75. West winds 5 to 15 mph.
    Night Details
    Mostly cloudy. A 20 percent chance of rain in the evening. Lows 45 to 50. West winds 5 to 15 mph.
  • Forecast day icon
    Thursday
    Partly Cloudy
    64°
    Forecast night icon
    Night
    Mostly Cloudy
    42°
    Thursday 4/25
    Day
    64°
    Partly Cloudy
    Forecast day icon
    Night
    42°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Highs 65 to 70. Northwest winds 5 to 15 mph.
    Night Details
    Mostly cloudy with a 20 percent chance of rain. Lows 40 to 45.
  • Forecast day icon
    Friday
    50% Chance of Rain
    54°
    Forecast night icon
    Night
    50% Chance of Rain
    38°
    Friday 4/26
    Day
    54°
    50% Chance of Rain
    Forecast day icon
    Night
    38°
    50% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Cooler. Mostly cloudy with a 50 percent chance of rain. Highs 55 to 60. Lows around 40.
    Night Details
    Cooler. Mostly cloudy with a 50 percent chance of rain. Highs 55 to 60. Lows around 40.
  • Forecast day icon
    Saturday
    50% Chance of Rain
    55°
    Forecast night icon
    Night
    40% Chance of Rain
    37°
    Saturday 4/27
    Day
    55°
    50% Chance of Rain
    Forecast day icon
    Night
    37°
    40% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 50 percent chance of rain. Highs 50 to 60.
    Night Details
    Mostly cloudy with a 40 percent chance of rain. Lows 35 to 40.
  • Forecast day icon
    Sunday
    Mostly Cloudy
    60°
    Forecast night icon
    Night
    Partly Cloudy
    37°
    Sunday 4/28
    Day
    60°
    Mostly Cloudy
    Forecast day icon
    Night
    37°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 20 percent chance of rain. Highs 60 to 65.
    Night Details
    Partly cloudy with a 20 percent chance of rain. Lows around 40.
  • Forecast day icon
    Monday
    50% Chance of Rain
    58°
    Forecast night icon
    Night
    40% Chance of Rain
    35°
    Monday 4/29
    Day
    58°
    50% Chance of Rain
    Forecast day icon
    Night
    35°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a 50 percent chance of rain. Highs 60 to 65.
    Night Details
    Mostly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 35F. Dew point will be around 29F with an average humidity of 61%. Winds will be 8 mph from the W.
  • Forecast day icon
    Tuesday
    40% Chance of Rain
    54°
    Forecast night icon
    Night
    30% Chance of Rain
    33°
    Tuesday 4/30
    Day
    54°
    40% Chance of Rain
    Forecast day icon
    Night
    33°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 54F. Dew point will be around 30F with an average humidity of 49%. Winds will be 11 mph from the W.
    Night Details
    Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 33F. Dew point will be around 31F with an average humidity of 68%. Winds will be 8 mph from the W.
  • Forecast day icon
    Wednesday
    40% Chance of Rain
    54°
    Forecast night icon
    Night
    30% Chance of Rain
    35°
    Wednesday 5/1
    Day
    54°
    40% Chance of Rain
    Forecast day icon
    Night
    35°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 54F. Dew point will be around 32F with an average humidity of 55%. Winds will be 6 mph from the NW.
    Night Details
    Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 35F. Dew point will be around 33F with an average humidity of 72%. Winds will be 4 mph from the W.