Westby, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    60% Chance of Storms
    50°
    Thursday 5/16
    Forecast night icon
    50°
    60% Chance of Storms
    Hourly
    Night Details
    Showers likely with a chance of thunderstorms this evening then a slight chance of thunderstorms after midnight. Some thunderstorms may produce gusty winds. Lows in the upper 40s. South wind 5 to 10 mph. Chance of rain 60 percent.
  • Forecast day icon
    Friday
    30% Chance Rain Showers
    72°
    Forecast night icon
    Night
    60% Chance Rain Showers
    43°
    Friday 5/17
    Day
    72°
    30% Chance Rain Showers
    Forecast day icon
    Night
    43°
    60% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. A chance of showers in the afternoon. Highs in the lower 70s. West wind 15 to 20 mph. Chance of rain 30 percent.
    Night Details
    A chance of showers in the evening then showers likely after midnight. Lows in the lower 40s. West wind 10 to 15 mph. Chance of rain 60 percent.
  • Forecast day icon
    Saturday
    30% Chance Rain Showers
    59°
    Forecast night icon
    Night
    Mostly Clear
    40°
    Saturday 5/18
    Day
    59°
    30% Chance Rain Showers
    Forecast day icon
    Night
    40°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    A chance of showers in the morning then mostly sunny in the afternoon. Very windy with highs in the lower 60s. West wind 25 to 35 mph with gusts up to 45 mph. Chance of rain 30 percent.
    Night Details
    Mostly clear and breezy. Lows in the upper 30s. West wind 15 to 25 mph with gusts up to 35 mph easing to around 5 mph after midnight.
  • Forecast day icon
    Sunday
    Chance of Rain Showers
    66°
    Forecast night icon
    Night
    Chance of Rain Showers
    43°
    Sunday 5/19
    Day
    66°
    Chance of Rain Showers
    Forecast day icon
    Night
    43°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    A slight chance of showers. Highs in the mid 60s.
    Night Details
    A chance of showers. Lows in the lower 40s.
  • Forecast day icon
    Monday
    Chance of Rain Showers
    56°
    Forecast night icon
    Night
    Mostly Cloudy
    38°
    Monday 5/20
    Day
    56°
    Chance of Rain Showers
    Forecast day icon
    Night
    38°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    A chance of showers. Highs around 60.
    Night Details
    Mostly cloudy. Lows in the upper 30s.
  • Forecast day icon
    Tuesday
    Chance of Rain Showers
    59°
    Forecast night icon
    Night
    Partly Cloudy
    39°
    Tuesday 5/21
    Day
    59°
    Chance of Rain Showers
    Forecast day icon
    Night
    39°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    A slight chance of showers. Highs in the upper 50s.
    Night Details
    Partly cloudy. Lows in the upper 30s.
  • Forecast day icon
    Wednesday
    Chance of Rain Showers
    67°
    Forecast night icon
    Night
    Chance of Rain Showers
    41°
    Wednesday 5/22
    Day
    67°
    Chance of Rain Showers
    Forecast day icon
    Night
    41°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    A slight chance of showers. Highs in the lower 60s.
    Night Details
    A chance of showers. Lows in the upper 30s.
  • Forecast day icon
    Thursday
    Chance of Rain Showers
    58°
    Forecast night icon
    Night
    60% Chance of Rain
    40°
    Thursday 5/23
    Day
    58°
    Chance of Rain Showers
    Forecast day icon
    Night
    40°
    60% Chance of Rain
    Forecast night icon
    Day Details
    A chance of showers. Highs in the upper 50s.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 55%. Low temperature around 40F. Dew point will be around 35F with an average humidity of 65%. Winds will be 6 mph from the N.
  • Forecast day icon
    Friday
    60% Chance of Rain
    54°
    Forecast night icon
    Night
    50% Chance of Rain
    39°
    Friday 5/24
    Day
    54°
    60% Chance of Rain
    Forecast day icon
    Night
    39°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 55%. High temperature around 54F. Dew point will be around 35F with an average humidity of 56%. Winds will be 9 mph from the N.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 39F. Dew point will be around 34F with an average humidity of 68%. Winds will be 8 mph from the N.
  • Forecast day icon
    Saturday
    30% Chance of Rain
    59°
    Forecast night icon
    Night
    30% Chance of Rain
    41°
    Saturday 5/25
    Day
    59°
    30% Chance of Rain
    Forecast day icon
    Night
    41°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 59F. Dew point will be around 34F with an average humidity of 49%. Winds will be 9 mph from the NW.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 41F. Dew point will be around 33F with an average humidity of 59%. Winds will be 5 mph from the NW.