National Weather Service United States Department of Commerce

Relatively quiet weather pattern over much of the U.S.

A quieter weather pattern will continue to set up for most of the U.S. as arctic air continues to surge southward behind a cold front sweeping across the Southeast U.S. Expect temperatures to be 10 to 30 degrees below climate averages from the southern Plains to the Northeast on Friday.
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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

Mostly Cloudy

Mostly
Cloudy

Low: 27 °F

Friday

Partly Sunny

Partly
Sunny

High: 48 °F

Friday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 29 °F

Saturday

Mostly Sunny

Mostly
Sunny

High: 51 °F

Saturday
Night

Partly Cloudy

Partly
Cloudy

Low: 31 °F

Sunday

Mostly Sunny

Mostly
Sunny

High: 51 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 31 °F

Monday

Mostly Sunny

Mostly
Sunny

High: 54 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 33 °F

Detailed Forecast

  • Overnight Mostly cloudy, with a steady temperature around 27. Light south wind.
  • Friday Partly sunny, with a high near 48. South southwest wind 3 to 6 mph.
  • Friday Night Mostly cloudy, with a low around 29. Light south wind.
  • Saturday Mostly sunny, with a high near 51. Calm wind.
  • Saturday Night Partly cloudy, with a low around 31. Calm wind.
  • Sunday Mostly sunny, with a high near 51.
  • Sunday Night Partly cloudy, with a low around 31.
  • Monday Mostly sunny, with a high near 54.
  • Monday Night Partly cloudy, with a low around 33.
  • Tuesday Mostly sunny, with a high near 60.
  • Tuesday Night Partly cloudy, with a low around 35.
  • Wednesday A slight chance of showers. Mostly cloudy, with a high near 51.
  • Wednesday Night A slight chance of showers. Mostly cloudy, with a low around 33.
  • Thursday A slight chance of showers. Partly sunny, with a high near 53.