10-Day Weather Forecast - Sidney, MT

Mostly sunny. Highs in the mid 50s. Northeast wind around 5 mph becoming north 10 to 15 mph in the afternoon.

Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 20s. North wind 5 to 10 mph.

Mostly sunny. Highs in the upper 50s. Northwest wind 5 to 10 mph.

Partly cloudy. Lows in the lower 30s.

Sunny. Highs in the upper 60s.

Partly cloudy. Lows in the upper 30s. Highs in the upper 60s.

Partly cloudy. Lows in the upper 30s. Highs in the upper 60s.

Mostly cloudy. Lows around 40. Highs in the upper 60s.

Mostly cloudy. Lows around 40. Highs in the upper 60s.

Mostly cloudy. Lows around 40. Highs in the upper 60s.

Mostly cloudy. Lows around 40. Highs in the upper 60s.

Partly cloudy. Low temperature around 38F. Dew point will be around 29F with an average humidity of 51%. Winds will be 7 mph from the N.

Mostly sunny. High temperature around 68F. Dew point will be around 31F with an average humidity of 38%. Winds will be 4 mph from the NW.

Mostly clear. Low temperature around 39F. Dew point will be around 31F with an average humidity of 53%. Winds will be 2 mph from the N.

Sunny. High temperature around 66F. Dew point will be around 33F with an average humidity of 41%. Winds will be 5 mph from the NW.

Clear. Low temperature around 38F. Dew point will be around 31F with an average humidity of 55%. Winds will be 3 mph from the N.

Mostly sunny. High temperature around 64F. Dew point will be around 33F with an average humidity of 43%. Winds will be 6 mph from the N.

Mostly cloudy. Low temperature around 36F. Dew point will be around 29F with an average humidity of 54%. Winds will be 4 mph from the N.