Longmont, Colorado | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Sunday
    70% Chance of Rain
    63°
    Forecast night icon
    Night
    Partly Cloudy
    44°
    Sunday 5/12
    Day
    63°
    70% Chance of Rain
    Forecast day icon
    Night
    44°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with probable rain. Chance of precipitation 65%. High temperature around 63F. Dew point will be around 44F with an average humidity of 37%. Winds will be 5 mph from the N.
    Night Details
    Mostly cloudy with a slight chance of thunderstorms early in the evening then partly cloudy overnight. Lows in the mid 40s. Northwest winds 10 to 15 mph with gusts up to 25 mph in the evening becoming light. Chance of precipitation 20 percent.
  • Forecast day icon
    Monday
    30% Chance of Storms
    70°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Monday 5/13
    Day
    70°
    30% Chance of Storms
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Chance of showers and slight chance of thunderstorms in the afternoon. Highs in the lower to mid 70s. Chance of rain 30 percent.
    Night Details
    Partly cloudy. Slight chance of thunderstorms in the evening. Lows near 50. Chance of precipitation 10 percent.
  • Forecast day icon
    Tuesday
    50% Chance of Storms
    74°
    Forecast night icon
    Night
    40% Chance of Storms
    48°
    Tuesday 5/14
    Day
    74°
    50% Chance of Storms
    Forecast day icon
    Night
    48°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 50 percent chance of thunderstorms. Highs in the 70s. West winds 10 to 15 mph with gusts up to 20 mph.
    Night Details
    Mostly cloudy with a 40 percent chance of thunderstorms. Lows in the mid to upper 40s.
  • Forecast day icon
    Wednesday
    Chance of Storms
    60°
    Forecast night icon
    Night
    50% Chance of Storms
    46°
    Wednesday 5/15
    Day
    60°
    Chance of Storms
    Forecast day icon
    Night
    46°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers and chance of thunderstorms. Highs in the lower to mid 60s.
    Night Details
    Mostly cloudy with a 50 percent chance of thunderstorms. Lows in the mid 40s.
  • Forecast day icon
    Thursday
    30% Chance of Storms
    68°
    Forecast night icon
    Night
    Mostly Clear
    47°
    Thursday 5/16
    Day
    68°
    30% Chance of Storms
    Forecast day icon
    Night
    47°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 30 percent chance of thunderstorms. Highs in the mid 60s to lower 70s.
    Night Details
    Mostly clear with a 10 percent chance of thunderstorms. Lows near 50. Highs in the mid 70s to lower 80s.
  • Forecast day icon
    Friday
    Mostly Sunny
    77°
    Forecast night icon
    Night
    Mostly Clear
    50°
    Friday 5/17
    Day
    77°
    Mostly Sunny
    Forecast day icon
    Night
    50°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear with a 10 percent chance of thunderstorms. Lows near 50. Highs in the mid 70s to lower 80s.
    Night Details
    Mostly clear with a 10 percent chance of thunderstorms. Lows near 50. Highs in the mid 70s to lower 80s.
  • Forecast day icon
    Saturday
    Partly Cloudy
    80°
    Forecast night icon
    Night
    Partly Cloudy
    47°
    Saturday 5/18
    Day
    80°
    Partly Cloudy
    Forecast day icon
    Night
    47°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly cloudy with a 20 percent chance of thunderstorms. Highs 74 to 81. Lows around 50.
    Night Details
    Partly cloudy with a 20 percent chance of thunderstorms. Highs 74 to 81. Lows around 50.
  • Forecast day icon
    Sunday
    Partly Cloudy
    69°
    Forecast night icon
    Night
    Partly Cloudy
    47°
    Sunday 5/19
    Day
    69°
    Partly Cloudy
    Forecast day icon
    Night
    47°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly cloudy with a 20 percent chance of thunderstorms. Highs 74 to 81. Lows around 50.
    Night Details
    Partly cloudy. Low temperature around 47F. Dew point will be around 41F with an average humidity of 58%. Winds will be 1 mph from the SE.
  • Forecast day icon
    Monday
    Mostly Sunny
    73°
    Forecast night icon
    Night
    30% Chance of Rain
    49°
    Monday 5/20
    Day
    73°
    Mostly Sunny
    Forecast day icon
    Night
    49°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 73F. Dew point will be around 41F with an average humidity of 41%. Winds will be 2 mph from the S.
    Night Details
    Mostly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 49F. Dew point will be around 41F with an average humidity of 54%. Winds will be 2 mph from the W.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    73°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Tuesday 5/21
    Day
    73°
    Mostly Sunny
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 73F. Dew point will be around 39F with an average humidity of 38%. Winds will be 1 mph from the S.
    Night Details
    Partly cloudy. Low temperature around 49F. Dew point will be around 38F with an average humidity of 49%. Winds will be 2 mph from the W.