Monthly Temperature Averages and Climate for Sidney, MT

Adventure graphic for climate page specific to each city and state

Sidney, MT has a longitude of -104.2 degrees and a latitude of 47.7 degrees.

Sidney, MT has temperatures that can go as high as 79.0 °F in June, 84.2 °F in July, and 84.3 °F in August. The hottest month is typically August.

Sidney, MT also has temperatures that can go as low as 8.6 °F in December, 4.9 °F in January, and 10.4 °F in February. The coldest month is typically January.

The wettest month for Sidney, MT is June with 7.0 inches of rain.

The annual weather and monthly temperature averages for highs and lows are presented in the table below. The weather values used to interpolate these values are provided by the US NAOO weather station values from the last 10 years.

JanFebMarAprMayJunJulAugSepOctNovDec
Average High (°F)24.930.444.761.069.979.084.284.373.559.241.226.7
Average Low (°F)4.910.421.332.142.851.857.253.644.632.021.38.6
Average Precipitation (in)1.01.02.03.06.17.05.93.03.03.01.01.9
Tree Graphic for climate page specific to city and state for annual weather site

Montana is a large state with considerable variation in geography, topography and altitude, and the climate is, therefore, equally varied. Average annual precipitation is 15 inches (380 mm), but great variations are seen. Heavy snowstorms may occur from September through May, though most snow falls from November to March. The climate has become warmer in Montana and continues to do so. The glaciers in Glacier National Park have receded and are predicted to melt away completely in a few decades.

In reality, each climate is unique and finding one that is suitable can be a real challenge! We hope that the information here can be the starting point of your weather and climate research for your next vacation or potentially next home.

We hope you use this information to make your travel plans to Sidney, MT or decide if living in the Sidney climate is the right choice for you!

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