Westby, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Friday
    Partly Cloudy
    69°
    Forecast night icon
    Night
    Mostly Clear
    48°
    Friday 5/10
    Day
    69°
    Partly Cloudy
    Forecast day icon
    Night
    48°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny then becoming partly cloudy in the late morning and early afternoon then becoming sunny. Highs in the lower 70s. Northwest winds 10 to 20 mph.
    Night Details
    Mostly clear. Lows in the upper 40s. West winds around 10 mph. Gusts up to 20 mph in the evening.
  • Forecast day icon
    Saturday
    Partly Cloudy
    76°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Saturday 5/11
    Day
    76°
    Partly Cloudy
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Highs in the upper 70s. West winds 10 to 20 mph.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 40s. North winds 10 to 15 mph.
  • Forecast day icon
    Sunday
    Rain Showers
    64°
    Forecast night icon
    Night
    Chance of Rain Showers
    47°
    Sunday 5/12
    Day
    64°
    Rain Showers
    Forecast day icon
    Night
    47°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    A 20 percent chance of showers. Cooler. Highs in the upper 60s. North winds 10 to 15 mph.
    Night Details
    A slight chance of rain showers. Lows in the mid 40s.
  • Forecast day icon
    Monday
    Chance of Storms
    70°
    Forecast night icon
    Night
    Chance of Storms
    49°
    Monday 5/13
    Day
    70°
    Chance of Storms
    Forecast day icon
    Night
    49°
    Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    A chance of rain showers and a slight chance of thunderstorms. Highs in the mid 70s.
    Night Details
    A chance of showers and a slight chance of thunderstorms. Lows in the mid 40s.
  • Forecast day icon
    Tuesday
    Chance of Storms
    61°
    Forecast night icon
    Night
    Chance of Storms
    44°
    Tuesday 5/14
    Day
    61°
    Chance of Storms
    Forecast day icon
    Night
    44°
    Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    A chance of showers and a slight chance of thunderstorms. Cooler. Highs in the lower 60s.
    Night Details
    A slight chance of showers and thunderstorms. Lows in the upper 30s.
  • Forecast day icon
    Wednesday
    Chance of Rain Showers
    60°
    Forecast night icon
    Night
    Chance of Rain Showers
    41°
    Wednesday 5/15
    Day
    60°
    Chance of Rain Showers
    Forecast day icon
    Night
    41°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    A chance of rain showers. Highs in the lower 60s.
    Night Details
    A slight chance of rain showers. Lows in the lower 40s.
  • Forecast day icon
    Thursday
    Chance of Rain Showers
    66°
    Forecast night icon
    Night
    30% Chance of Rain
    46°
    Thursday 5/16
    Day
    66°
    Chance of Rain Showers
    Forecast day icon
    Night
    46°
    30% Chance of Rain
    Forecast night icon
    Day Details
    A chance of rain showers. Highs in the mid 60s.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 46F. Dew point will be around 34F with an average humidity of 53%. Winds will be 7 mph from the SW.
  • Forecast day icon
    Friday
    30% Chance of Rain
    63°
    Forecast night icon
    Night
    Partly Cloudy
    45°
    Friday 5/17
    Day
    63°
    30% Chance of Rain
    Forecast day icon
    Night
    45°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 63F. Dew point will be around 38F with an average humidity of 47%. Winds will be 11 mph from the NW.
    Night Details
    Partly cloudy. Low temperature around 45F. Dew point will be around 37F with an average humidity of 58%. Winds will be 9 mph from the NW.
  • Forecast day icon
    Saturday
    Sunny
    63°
    Forecast night icon
    Night
    Mostly Clear
    44°
    Saturday 5/18
    Day
    63°
    Sunny
    Forecast day icon
    Night
    44°
    Mostly Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 63F. Dew point will be around 36F with an average humidity of 46%. Winds will be 11 mph from the NW.
    Night Details
    Mostly clear. Low temperature around 44F. Dew point will be around 35F with an average humidity of 55%. Winds will be 7 mph from the NW.
  • Forecast day icon
    Sunday
    Mostly Cloudy
    62°
    Forecast night icon
    Night
    Partly Cloudy
    43°
    Sunday 5/19
    Day
    62°
    Mostly Cloudy
    Forecast day icon
    Night
    43°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly cloudy. High temperature around 62F. Dew point will be around 35F with an average humidity of 45%. Winds will be 8 mph from the NW.
    Night Details
    Partly cloudy. Low temperature around 43F. Dew point will be around 34F with an average humidity of 56%. Winds will be 4 mph from the NW.