Longmont, Colorado | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Friday
    40% Chance of Storms
    57°
    Forecast night icon
    Night
    Mostly Cloudy
    41°
    Friday 5/10
    Day
    57°
    40% Chance of Storms
    Forecast day icon
    Night
    41°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Cloudy with a chance of showers. Slight chance of thunderstorms in the afternoon. Highs in the mid to upper 50s. Chance of rain 40 percent.
    Night Details
    Mostly cloudy. Slight chance of thunderstorms in the evening. Lows around 40. Chance of precipitation 10 percent.
  • Forecast day icon
    Saturday
    50% Chance of Storms
    62°
    Forecast night icon
    Night
    50% Chance of Storms
    49°
    Saturday 5/11
    Day
    62°
    50% Chance of Storms
    Forecast day icon
    Night
    49°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy in the morning then mostly cloudy with a chance of thunderstorms in the afternoon. Highs in the mid to upper 60s. Chance of precipitation 50 percent.
    Night Details
    Mostly cloudy with a 50 percent chance of thunderstorms. Lows in the mid 40s.
  • Forecast day icon
    Sunday
    50% Chance of Storms
    67°
    Forecast night icon
    Night
    Partly Cloudy
    46°
    Sunday 5/12
    Day
    67°
    50% Chance of Storms
    Forecast day icon
    Night
    46°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 50 percent chance of thunderstorms. Highs in the mid 60s to lower 70s. North winds 10 to 20 mph with gusts up to 30 mph.
    Night Details
    Partly cloudy with a 20 percent chance of thunderstorms. Lows in the mid 40s. Highs in the lower to mid 70s.
  • Forecast day icon
    Monday
    Partly Cloudy
    70°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Monday 5/13
    Day
    70°
    Partly Cloudy
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 20 percent chance of thunderstorms. Lows in the mid 40s. Highs in the lower to mid 70s.
    Night Details
    Partly cloudy with a 10 percent chance of thunderstorms. Lows in the upper 40s.
  • Forecast day icon
    Tuesday
    50% Chance of Storms
    71°
    Forecast night icon
    Night
    40% Chance of Storms
    49°
    Tuesday 5/14
    Day
    71°
    50% Chance of Storms
    Forecast day icon
    Night
    49°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 50 percent chance of thunderstorms. Highs in the lower to mid 70s.
    Night Details
    Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows in the mid 40s. Chance of rain 40 percent.
  • Forecast day icon
    Wednesday
    60% Chance of Storms
    55°
    Forecast night icon
    Night
    30% Chance of Storms
    45°
    Wednesday 5/15
    Day
    55°
    60% Chance of Storms
    Forecast day icon
    Night
    45°
    30% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers likely and chance of thunderstorms. Highs near 60. Chance of rain 60 percent.
    Night Details
    Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows in the lower 40s. Chance of rain 30 percent.
  • Forecast day icon
    Thursday
    Partly Cloudy
    60°
    Forecast night icon
    Night
    Mostly Clear
    46°
    Thursday 5/16
    Day
    60°
    Partly Cloudy
    Forecast day icon
    Night
    46°
    Mostly Clear
    Forecast night icon
    Day Details
    Partly cloudy with a 20 percent chance of thunderstorms. Highs in the mid to upper 60s.
    Night Details
    Mostly clear. Low temperature around 46F. Dew point will be around 35F with an average humidity of 57%. Winds will be 2 mph from the NW.
  • Forecast day icon
    Friday
    Sunny
    68°
    Forecast night icon
    Night
    Clear
    49°
    Friday 5/17
    Day
    68°
    Sunny
    Forecast day icon
    Night
    49°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 68F. Dew point will be around 36F with an average humidity of 39%. Winds will be 2 mph from the SW.
    Night Details
    Clear. Low temperature around 49F. Dew point will be around 37F with an average humidity of 49%. Winds will be 3 mph from the SW.
  • Forecast day icon
    Saturday
    Sunny
    70°
    Forecast night icon
    Night
    Partly Cloudy
    52°
    Saturday 5/18
    Day
    70°
    Sunny
    Forecast day icon
    Night
    52°
    Partly Cloudy
    Forecast night icon
    Day Details
    Sunny. High temperature around 70F. Dew point will be around 38F with an average humidity of 40%. Winds will be 3 mph from the E.
    Night Details
    Partly cloudy. Low temperature around 52F. Dew point will be around 41F with an average humidity of 53%. Winds will be 1 mph from the S.
  • Forecast day icon
    Sunday
    Mostly Sunny
    69°
    Forecast night icon
    Night
    30% Chance of Rain
    51°
    Sunday 5/19
    Day
    69°
    Mostly Sunny
    Forecast day icon
    Night
    51°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 69F. Dew point will be around 42F with an average humidity of 45%. Winds will be 2 mph from the E.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 51F. Dew point will be around 43F with an average humidity of 59%. Winds will be 1 mph from the W.