10-Day Weather Forecast - Johnstown, CO

Mostly cloudy. Chance of showers and slight chance of thunderstorms in the afternoon. Highs in the lower to mid 70s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent.

Rain showers and slight chance of thunderstorms. Lows in the lower to mid 30s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Rain showers. Much colder. Highs in the lower 40s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Rain and snow showers. Lows near 30.

Rain and snow showers likely. Highs near 50. Chance of precipitation 70 percent.

Partly cloudy with a 20 percent chance of rain showers. Lows near 30.

Mostly sunny. Warmer. Highs in the lower to mid 70s.

Partly cloudy. Lows near 40.

Mostly sunny. Highs in the lower to mid 70s.

Partly cloudy. Lows in the lower to mid 40s.

Partly cloudy with a 20 percent chance of thunderstorms. Highs near 80.

Mostly clear with a chance of rain. Chance of precipitation 35%. Low temperature around 49F. Dew point will be around 36F with an average humidity of 46%. Winds will be 6 mph from the N.

Partly cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 71F. Dew point will be around 37F with an average humidity of 37%. Winds will be 6 mph from the NE.

Mostly cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 46F. Dew point will be around 37F with an average humidity of 52%. Winds will be 4 mph from the NE.

Sunny. High temperature around 74F. Dew point will be around 37F with an average humidity of 38%. Winds will be 4 mph from the E.

Clear. Low temperature around 50F. Dew point will be around 35F with an average humidity of 42%. Winds will be 2 mph from the E.

Sunny. High temperature around 83F. Dew point will be around 33F with an average humidity of 25%. Winds will be 2 mph from the E.

Clear. Low temperature around 54F. Dew point will be around 31F with an average humidity of 30%. Winds will be 2 mph from the NW.