National Weather Service United States Department of Commerce

More precipation for the Pacific Northwest on Sunday

Another quiet day for most of the county on Sunday, but wet and windy weather will remain in the Pacific Northwest and northern Rockies. In some of the higher elevations, the rain will change over to snow during the day on Sunday.
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Current Conditions

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Lewistown MT

7 Day Forecast

For More Weather Information:

Great Falls, MT Local Forecast Office

Tonight

Partly Cloudy

Partly
Cloudy

Low: 42 °F

Sunday

Slight Chance Rain Chance for Measurable Precipitation 20%

Slight Chc
Rain

High: 54 °F

Sunday
Night

Chance Rain/Snow Chance for Measurable Precipitation 40%

Chance
Rain/Snow

Low: 32 °F

Monday

Chance Rain/Snow Chance for Measurable Precipitation 40%

Chance
Rain/Snow

High: 43 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 26 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 52 °F

Tuesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 37 °F

Wednesday

Partly Sunny

Partly
Sunny

High: 56 °F

Wednesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 35 °F

Detailed Forecast

  • Tonight Partly cloudy, with a low around 42. South southeast wind 8 to 11 mph becoming southwest after midnight.
  • Sunday A 20 percent chance of rain after noon. Mostly sunny, with a high near 54. West wind 10 to 17 mph, with gusts as high as 24 mph.
  • Sunday Night A slight chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 32. West wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
  • Monday A chance of rain and snow, mainly before noon. Mostly cloudy, with a high near 43. West northwest wind 15 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
  • Monday Night Partly cloudy, with a low around 26. Southwest wind 6 to 8 mph.
  • Tuesday Mostly sunny, with a high near 52.
  • Tuesday Night Mostly cloudy, with a low around 37.
  • Wednesday Partly sunny, with a high near 56.
  • Wednesday Night Mostly cloudy, with a low around 35.
  • Thursday Mostly sunny, with a high near 55.
  • Thursday Night Partly cloudy, with a low around 36.
  • Friday Mostly sunny, with a high near 59.
  • Friday Night Partly cloudy, with a low around 40.
  • Saturday Mostly sunny, with a high near 64.