10-Day Weather Forecast - Sidney, MT

Sunny. Highs in the mid 80s. South wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon.

Partly cloudy in the evening then becoming mostly cloudy. Lows around 50. North wind around 5 mph becoming east after midnight.

Mostly cloudy in the morning then becoming partly sunny. Highs around 90. Southeast wind around 10 mph becoming south 15 to 20 mph in the afternoon.

A slight chance of showers in the evening then a chance of showers after midnight. Lows around 40. Southwest wind around 15 mph becoming west after midnight. Chance of rain 30 percent.

Showers with a slight chance of thunderstorms. Windy and much cooler with highs in the lower 50s.

A chance of snow and rain showers. Windy with lows in the upper 20s.

A chance of snow showers. Blustery cooler with highs in the upper 30s.

A chance of snow showers. Lows in the lower 20s.

Mostly cloudy. Highs in the lower 40s. Lows in the lower 20s.

Mostly cloudy. Highs in the lower 40s. Lows in the lower 20s.

Mostly cloudy. Highs in the lower 40s. Lows in the lower 20s.

Mostly cloudy. Highs in the lower 40s. Lows in the lower 20s.

Partly sunny. Highs in the upper 40s.

Partly cloudy. Low temperature around 26F. Dew point will be around 24F with an average humidity of 69%. Winds will be 4 mph from the N.

Sunny. High temperature around 55F. Dew point will be around 25F with an average humidity of 49%. Winds will be 4 mph from the N.

Clear. Low temperature around 29F. Dew point will be around 26F with an average humidity of 64%. Winds will be 5 mph from the NE.

Partly cloudy. High temperature around 56F. Dew point will be around 29F with an average humidity of 51%. Winds will be 4 mph from the NE.

Partly cloudy. Low temperature around 30F. Dew point will be around 29F with an average humidity of 68%. Winds will be 3 mph from the NE.