10-Day Weather Forecast - Johnstown, CO

Mostly cloudy with a slight chance of snow in the morning then mostly sunny in the afternoon. Highs around 40. Chance of snow 20 percent.

Mostly clear. Lows 11 to 19.

Mostly sunny. Highs in the lower to mid 50s. West winds 10 to 15 mph with gusts up to 25 mph.

Partly cloudy. Lows 12 to 20. East winds 10 to 15 mph with gusts up to 25 mph.

Mostly clear. Highs in the mid to upper 40s. Lows 11 to 17.

Mostly clear. Highs in the mid to upper 40s. Lows 11 to 17.

Partly cloudy. Highs near 50. Lows 15 to 21.

Partly cloudy. Highs near 50. Lows 15 to 21.

Mostly cloudy. Highs near 40.

Mostly cloudy with a 20 percent chance of snow. Lows 8 to 14.

Partly cloudy with a 20 percent chance of snow. Highs in the mid to upper 30s.

Partly cloudy. Lows 7 to 13. Highs in the lower 40s.

Partly cloudy. Lows 7 to 13. Highs in the lower 40s.

Clear. Low temperature around 18F. Dew point will be around 14F with an average humidity of 68%. Winds will be 2 mph from the NW.

Sunny. High temperature around 40F. Dew point will be around 17F with an average humidity of 47%. Winds will be 1 mph from the SE.

Clear. Low temperature around 20F. Dew point will be around 16F with an average humidity of 68%. Winds will be 2 mph from the NW.

Sunny. High temperature around 41F. Dew point will be around 18F with an average humidity of 49%. Winds will be 1 mph from the NE.

Clear. Low temperature around 20F. Dew point will be around 15F with an average humidity of 65%. Winds will be 2 mph from the W.