National Weather Service United States Department of Commerce

While moderate snow winds down in the Northeast, heavy rainfall will develop across the Northwest

Moderate snow will begin tapering of throughout Thanksgiving Day across New England as the responsible coast low moves off eastern Canada by Friday morning. A weakening front will move into the Pacific Northwest Thanksgiving morning and dissipate bringing light to moderate rain to the Northwest Coast and parts of Northern California and elevation snow through Friday morning.
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Current Conditions

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4 Miles SW Helena MT

7 Day Forecast

For More Weather Information:

Great Falls, MT Local Forecast Office

Overnight

Slight Chance Rain Chance for Measurable Precipitation 20%

Slight Chc
Rain

Low: 38 °F

Thanksgiving
Day

Partly Sunny

Partly
Sunny

High: 48 °F

Thursday
Night

Slight Chance Rain Chance for Measurable Precipitation 20%

Slight Chc
Rain

Low: 36 °F

Friday

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

High: 45 °F

Friday
Night

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

Low: 18 °F

Saturday

Snow Chance for Measurable Precipitation 90%

Snow

High: 28 °F

Saturday
Night

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

Low: -1 °F

Sunday

Mostly Sunny

Mostly
Sunny

High: 11 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 4 °F

Detailed Forecast

  • Overnight A 20 percent chance of rain. Mostly cloudy, with a steady temperature around 38. Southwest wind around 6 mph.
  • Thanksgiving Day Partly sunny, with a high near 48. West southwest wind 7 to 10 mph.
  • Thursday Night A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 36. West southwest wind around 9 mph.
  • Friday A slight chance of rain showers before 11am, then a chance of snow. Mostly cloudy, with a high near 45. West southwest wind 6 to 11 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
  • Friday Night Snow likely, mainly after 11pm. Mostly cloudy, with a low around 18. Southwest wind 7 to 9 mph becoming northwest in the evening. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
  • Saturday Snow. High near 28. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
  • Saturday Night A 50 percent chance of snow. Mostly cloudy, with a low around -1. New snow accumulation of 2 to 4 inches possible.
  • Sunday Mostly sunny, with a high near 11.
  • Sunday Night Partly cloudy, with a low around 4.
  • Monday A slight chance of snow showers. Partly sunny, with a high near 25.
  • Monday Night A chance of snow showers. Mostly cloudy, with a low around 16.
  • Tuesday A chance of snow showers. Partly sunny, with a high near 27.
  • Tuesday Night A slight chance of snow showers. Mostly cloudy, with a low around 12.
  • Wednesday A slight chance of snow showers. Partly sunny, with a high near 28.