10-Day Weather Forecast - Sidney, MT

Mostly sunny. Highs in the mid 40s. Southwest wind around 5 mph.

Partly cloudy. Lows around 30. Southwest wind around 5 mph becoming west 10 to 15 mph after midnight.

Partly sunny and very windy. Highs in the upper 30s. Northwest wind 20 to 25 mph with gusts up to 40 mph increasing to 30 to 35 mph with gusts up to 50 mph in the afternoon.

A slight chance of snow after midnight. Windy with lows 15 to 20. Northwest wind 25 to 30 mph with gusts up to 45 mph. Chance of snow 20 percent.

Partly sunny and windy. Highs in the mid 20s.

Partly cloudy. Lows 10 to 15. Highs in the lower 30s.

Partly cloudy. Lows 10 to 15. Highs in the lower 30s.

Partly cloudy. Lows 15 to 20. Highs in the mid 30s.

Partly cloudy. Lows 15 to 20. Highs in the mid 30s.

Partly cloudy. Lows 5 to 10 above. Highs in the mid 20s.

Partly cloudy. Lows 5 to 10 above. Highs in the mid 20s.

Mostly cloudy. Lows 10 to 15. Highs in the lower 30s.

Mostly cloudy. Lows 10 to 15. Highs in the lower 30s.

Cloudy. Low temperature around 20F. Dew point will be around 15F with an average humidity of 75%. Winds will be 5 mph from the N.

Cloudy. High temperature around 20F. Dew point will be around 11F with an average humidity of 70%. Winds will be 6 mph from the NW.

Cloudy. Low temperature around 12F. Dew point will be around 8F with an average humidity of 75%. Winds will be 6 mph from the N.

Cloudy. High temperature around 14F. Dew point will be around 7F with an average humidity of 74%. Winds will be 5 mph from the N.

Cloudy. Low temperature around 8F. Dew point will be around 4F with an average humidity of 78%. Winds will be 3 mph from the NE.