National Weather Service United States Department of Commerce

Stormy weather expected for the Pacific Northwest and Intermountain West

An impressive frontal system will continue moving through the Pacific Northwest and the Intermountain West and slowly make its way south. Behind it very cold Arctic air will follow. Higher elevation snow and moderate rainfall can be expected throughout these regions along with strong winds.
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Current Conditions

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Big Arm MT

7 Day Forecast

For More Weather Information:

Missoula, MT Local Forecast Office

Overnight

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

Low: 37 °F

Friday

Rain Chance for Measurable Precipitation 80%

Rain

High: 45 °F

Friday
Night

Rain Chance for Measurable Precipitation 100%

Rain

Low: 22 °F

Saturday

Snow Chance for Measurable Precipitation 90%

Snow

High: 22 °F

Saturday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 0 °F

Sunday

Sunny

Sunny

High: 14 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 4 °F

Monday

Chance Snow

Chance
Snow

High: 21 °F

Monday
Night

Chance Snow

Chance
Snow

Low: 16 °F

Detailed Forecast

  • Overnight A 50 percent chance of rain. Mostly cloudy, with a low around 37. South southwest wind around 11 mph.
  • Friday Rain. High near 45. South wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
  • Friday Night Rain. Low around 22. South wind 9 to 17 mph becoming east in the evening. Winds could gust as high as 26 mph. Chance of precipitation is 100%.
  • Saturday Snow with areas of blowing snow before 11am, then snow likely after 11am. High near 22. Wind chill values as low as -3. Northeast wind 16 to 21 mph decreasing to 9 to 14 mph in the morning. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
  • Saturday Night Mostly cloudy, with a low around 0. East northeast wind 5 to 7 mph.
  • Sunday Sunny, with a high near 14.
  • Sunday Night Partly cloudy, with a low around 4.
  • Monday A chance of snow. Partly sunny, with a high near 21.
  • Monday Night A chance of snow. Mostly cloudy, with a low around 16.
  • Tuesday A slight chance of snow showers. Partly sunny, with a high near 25.
  • Tuesday Night A slight chance of snow showers. Mostly cloudy, with a low around 20.
  • Wednesday A slight chance of snow showers. Partly sunny, with a high near 27.
  • Wednesday Night A slight chance of snow showers. Mostly cloudy, with a low around 25.
  • Thursday A slight chance of snow showers. Mostly cloudy, with a high near 29.