10-Day Weather Forecast - Johnstown, CO

Mostly sunny. Patchy smoke in the afternoon. Highs in the mid to upper 90s. Southeast winds 10 to 15 mph in the afternoon.

Partly cloudy. Slight chance of thunderstorms in the evening. Lows in the lower 60s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 20 percent.

Partly cloudy with a 30 percent chance of thunderstorms. Highs in the mid 90s. Southeast winds 10 to 15 mph with gusts up to 20 mph.

Partly cloudy with a 20 percent chance of thunderstorms. Lows in the upper 50s.

Partly cloudy with a 50 percent chance of thunderstorms. Highs near 90.

Mostly cloudy with a 40 percent chance of thunderstorms. Lows in the upper 50s.

Showers likely and chance of thunderstorms. Highs in the mid 80s to lower 90s. Chance of rain 60 percent.

Partly cloudy with a 30 percent chance of thunderstorms. Lows in the mid 50s.

Mostly clear. Highs near 90. Lows around 60.

Mostly clear. Highs near 90. Lows around 60.

Mostly sunny. Highs in the mid to upper 90s.

Clear. Lows in the lower to mid 60s.

Mostly sunny. Highs 98 to 102.

Clear. Low temperature around 68F. Dew point will be around 54F with an average humidity of 45%. Winds will be 7 mph from the SE.

Sunny. High temperature around 99F. Dew point will be around 58F with an average humidity of 38%. Winds will be 5 mph from the SE.

Clear. Low temperature around 66F. Dew point will be around 56F with an average humidity of 49%. Winds will be 5 mph from the SE.

Sunny. High temperature around 94F. Dew point will be around 60F with an average humidity of 45%. Winds will be 5 mph from the E.

Clear. Low temperature around 65F. Dew point will be around 59F with an average humidity of 59%. Winds will be 4 mph from the SE.