Johnstown, Colorado | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    60% Chance of Storms
    47°
    Monday 4/15
    Forecast night icon
    47°
    60% Chance of Storms
    Hourly
    Night Details
    Slight chance of thunderstorms. Chance of showers in the late evening and early morning. Showers likely towards sunrise. Windy. Lows in the mid 40s. Northwest winds 20 to 30 mph. Gusts up to 55 mph decreasing to 35 mph after midnight. Chance of rain 60 percent.
  • Forecast day icon
    Tuesday
    70% Chance of Storms
    66°
    Forecast night icon
    Night
    Partly Cloudy
    45°
    Tuesday 4/16
    Day
    66°
    70% Chance of Storms
    Forecast day icon
    Night
    45°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Becoming partly cloudy in the afternoon. Showers likely in the morning. Slight chance of thunderstorms. Very windy. Highs in the upper 60s. Northwest winds 30 to 40 mph with gusts up to 60 mph. Chance of rain 70 percent.
    Night Details
    Partly cloudy. Lows in the mid 30s to lower 40s. Northwest winds 10 to 20 mph with gusts up to 45 mph in the evening becoming light.
  • Forecast day icon
    Wednesday
    Mostly Cloudy
    70°
    Forecast night icon
    Night
    60% Chance Snow Showers
    35°
    Wednesday 4/17
    Day
    70°
    Mostly Cloudy
    Forecast day icon
    Night
    35°
    60% Chance Snow Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 10 percent chance of showers. Highs in the lower 70s. Southwest winds 10 to 15 mph with gusts up to 35 mph.
    Night Details
    Rain showers snow showers likely and slight chance of thunderstorms. Windy. Lows in the lower 30s. North winds 20 to 30 mph with gusts up to 40 mph. Chance of precipitation 60 percent.
  • Forecast day icon
    Thursday
    50% Chance Snow Showers
    47°
    Forecast night icon
    Night
    40% Chance Frozen Mix
    36°
    Thursday 4/18
    Day
    47°
    50% Chance Snow Showers
    Forecast day icon
    Night
    36°
    40% Chance Frozen Mix
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of rain showers snow showers and slight chance of thunderstorms. Much cooler. Highs in the upper 40s. Chance of precipitation 50 percent.
    Night Details
    Mostly cloudy with a chance of rain and snow showers. Lows in the lower 30s. Chance of precipitation 40 percent.
  • Forecast day icon
    Friday
    50% Chance Snow Showers
    54°
    Forecast night icon
    Night
    60% Chance Frozen Mix
    31°
    Friday 4/19
    Day
    54°
    50% Chance Snow Showers
    Forecast day icon
    Night
    31°
    60% Chance Frozen Mix
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of rain showers snow showers and slight chance of thunderstorms. Highs near 50. Chance of precipitation 50 percent.
    Night Details
    Rain and snow showers likely. Lows in the lower 30s. Chance of precipitation 60 percent.
  • Forecast day icon
    Saturday
    50% Chance Frozen Mix
    39°
    Forecast night icon
    Night
    Mostly Cloudy
    26°
    Saturday 4/20
    Day
    39°
    50% Chance Frozen Mix
    Forecast day icon
    Night
    26°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of rain and snow showers. Highs in the upper 40s. Chance of precipitation 50 percent.
    Night Details
    Mostly cloudy with a 20 percent chance of rain showers. Lows near 30.
  • Forecast day icon
    Sunday
    Partly Cloudy
    59°
    Forecast night icon
    Night
    Partly Cloudy
    41°
    Sunday 4/21
    Day
    59°
    Partly Cloudy
    Forecast day icon
    Night
    41°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 20 percent chance of rain showers. Highs in the mid 60s. Lows in the mid 30s to lower 40s.
    Night Details
    Partly cloudy with a 20 percent chance of rain showers. Highs in the mid 60s. Lows in the mid 30s to lower 40s.
  • Forecast day icon
    Monday
    Partly Cloudy
    67°
    Forecast night icon
    Night
    Partly Cloudy
    40°
    Monday 4/22
    Day
    67°
    Partly Cloudy
    Forecast day icon
    Night
    40°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly cloudy with a 20 percent chance of thunderstorms. Highs in the lower 70s.
    Night Details
    Partly cloudy. Low temperature around 40F. Dew point will be around 33F with an average humidity of 55%. Winds will be 4 mph from the N.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    65°
    Forecast night icon
    Night
    Mostly Cloudy
    43°
    Tuesday 4/23
    Day
    65°
    Mostly Sunny
    Forecast day icon
    Night
    43°
    Mostly Cloudy
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 65F. Dew point will be around 34F with an average humidity of 44%. Winds will be 5 mph from the SE.
    Night Details
    Mostly cloudy. Low temperature around 43F. Dew point will be around 35F with an average humidity of 53%. Winds will be 3 mph from the E.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    68°
    Forecast night icon
    Night
    30% Chance of Rain
    44°
    Wednesday 4/24
    Day
    68°
    Partly Cloudy
    Forecast day icon
    Night
    44°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 68F. Dew point will be around 34F with an average humidity of 38%. Winds will be 4 mph from the SE.
    Night Details
    Mostly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 44F. Dew point will be around 36F with an average humidity of 54%. Winds will be 4 mph from the N.