Grantsdale, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    50% Chance of Rain
    35°
    Sunday 5/19
    Forecast night icon
    35°
    50% Chance of Rain
    Hourly
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 35F. Dew point will be around 31F with an average humidity of 70%. Winds will be 6 mph from the NW.
  • Forecast day icon
    Monday
    70% Chance of Storms
    54°
    Forecast night icon
    Night
    30% Chance of Storms
    36°
    Monday 5/20
    Day
    54°
    70% Chance of Storms
    Forecast day icon
    Night
    36°
    30% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Slight chance of rain in the morning then rain showers likely and a chance of thunderstorms in the afternoon. Areas of frost early in the morning. Chance of precipitation 70 percent. Highs in the mid 50s to lower 60s.
    Night Details
    Mostly cloudy with a 30 percent chance of showers and thunderstorms in the evening then partly cloudy after midnight. Areas of frost after midnight. Lows in the mid to upper 30s.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    62°
    Forecast night icon
    Night
    30% Chance of Rain
    46°
    Tuesday 5/21
    Day
    62°
    Partly Cloudy
    Forecast day icon
    Night
    46°
    30% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Areas of frost in the morning. A 20 percent chance of rain in the afternoon. Highs in the lower to mid 60s.
    Night Details
    Mostly cloudy. A 30 percent chance of rain after midnight. Lows in the lower to mid 40s. West winds to 15 mph.
  • Forecast day icon
    Wednesday
    Thunderstorms
    53°
    Forecast night icon
    Night
    Thunderstorms
    38°
    Wednesday 5/22
    Day
    53°
    Thunderstorms
    Forecast day icon
    Night
    38°
    Thunderstorms
    Forecast night icon
    Hourly
    Day Details
    Rain likely in the morning then rain showers likely and a slight chance of thunderstorms in the afternoon. Chance of precipitation 90 percent. Highs in the mid to upper 50s.
    Night Details
    Rain showers likely and a slight chance of thunderstorms. Chance of precipitation 90 percent. Lows near 40.
  • Forecast day icon
    Thursday
    80% Chance of Rain
    49°
    Forecast night icon
    Night
    Mostly Cloudy
    35°
    Thursday 5/23
    Day
    49°
    80% Chance of Rain
    Forecast day icon
    Night
    35°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Rain likely. Chance of rain 80 percent. Highs in the lower to mid 50s.
    Night Details
    Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the mid 30s to lower 40s.
  • Forecast day icon
    Friday
    Mostly Cloudy
    61°
    Forecast night icon
    Night
    50% Chance of Rain
    44°
    Friday 5/24
    Day
    61°
    Mostly Cloudy
    Forecast day icon
    Night
    44°
    50% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A 20 percent chance of rain in the afternoon. Highs in the lower 60s.
    Night Details
    Mostly cloudy with a 50 percent chance of rain. Lows near 40.
  • Forecast day icon
    Saturday
    50% Chance of Rain
    52°
    Forecast night icon
    Night
    40% Chance of Rain
    38°
    Saturday 5/25
    Day
    52°
    50% Chance of Rain
    Forecast day icon
    Night
    38°
    40% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 50 percent chance of rain. Highs in the mid to upper 50s.
    Night Details
    Mostly cloudy with a 40 percent chance of rain. Lows in the mid 30s to lower 40s.
  • Forecast day icon
    Sunday
    30% Chance of Rain
    59°
    Forecast night icon
    Night
    Mostly Clear
    41°
    Sunday 5/26
    Day
    59°
    30% Chance of Rain
    Forecast day icon
    Night
    41°
    Mostly Clear
    Forecast night icon
    Day Details
    Mostly cloudy with a 30 percent chance of rain. Highs in the upper 50s.
    Night Details
    Mostly clear. Low temperature around 41F. Dew point will be around 34F with an average humidity of 60%. Winds will be 7 mph from the S.
  • Forecast day icon
    Monday
    Sunny
    67°
    Forecast night icon
    Night
    Clear
    45°
    Monday 5/27
    Day
    67°
    Sunny
    Forecast day icon
    Night
    45°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 67F. Dew point will be around 37F with an average humidity of 49%. Winds will be 6 mph from the W.
    Night Details
    Clear. Low temperature around 45F. Dew point will be around 37F with an average humidity of 55%. Winds will be 6 mph from the S.
  • Forecast day icon
    Tuesday
    Sunny
    75°
    Forecast night icon
    Night
    Mostly Clear
    50°
    Tuesday 5/28
    Day
    75°
    Sunny
    Forecast day icon
    Night
    50°
    Mostly Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 75F. Dew point will be around 37F with an average humidity of 40%. Winds will be 4 mph from the S.
    Night Details
    Mostly clear. Low temperature around 50F. Dew point will be around 38F with an average humidity of 49%. Winds will be 4 mph from the S.
  • Forecast day icon
    Wednesday
    Mostly Sunny
    79°
    Forecast night icon
    Night
    Partly Cloudy
    51°
    Wednesday 5/29
    Day
    79°
    Mostly Sunny
    Forecast day icon
    Night
    51°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 79F. Dew point will be around 39F with an average humidity of 36%. Winds will be 4 mph from the S.
    Night Details
    Partly cloudy. Low temperature around 51F. Dew point will be around 44F with an average humidity of 55%. Winds will be 4 mph from the S.