National Weather Service United States Department of Commerce

Winter weather returns to New England, wet weather in Southwest

A fast-moving clipper system will bring snow across much of New England on Friday. The heaviest snow is expected across Maine, New Hampshire and eastern Massachusetts. Snowfall totals will be much less than what the nor'easter earlier this week brought, with less than six inches forecast for most areas. Meanwhile, wet weather will prevail across parts of the Southwest into the weekend.
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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

This
Afternoon

Sunny

Sunny

High: 6 °C

Tonight

Partly Cloudy

Partly
Cloudy

Low: -6 °C

Saturday

Snow Chance for Measurable Precipitation 80%

Snow

High: -3 °C

Saturday
Night

Chance Snow Chance for Measurable Precipitation 40%

Chance
Snow

Low: -12 °C

Sunday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: -2 °C

Sunday
Night

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

Low: -4 °C

Monday

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

High: 3 °C

Monday
Night

Chance Snow

Chance
Snow

Low: -8 °C

Tuesday

Chance Snow

Chance
Snow

High: -3 °C

Detailed Forecast

  • This Afternoon Sunny, with a high near 6. West northwest wind 5 to 10 km/h.
  • Tonight Partly cloudy, with a low around -6. South wind 5 to 13 km/h.
  • Saturday Snow, mainly after 11am. High near -3. North northwest wind 16 to 21 km/h increasing to 22 to 27 km/h in the morning. Winds could gust as high as 39 km/h. Chance of precipitation is 80%. New snow accumulation of 1 to 3 centimeters possible.
  • Saturday Night A 40 percent chance of snow. Mostly cloudy, with a low around -12. Northwest wind 11 to 14 km/h. New snow accumulation of less than one centimeter possible.
  • Sunday A 20 percent chance of snow before 11am. Mostly cloudy, with a high near -2. Light south wind increasing to 9 to 14 km/h in the afternoon.
  • Sunday Night A chance of snow before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around -4. Chance of precipitation is 30%. New snow accumulation of less than a half centimeter possible.
  • Monday A chance of rain and snow. Mostly cloudy, with a high near 3. Chance of precipitation is 30%. New snow accumulation of less than a half centimeter possible.
  • Monday Night A chance of snow. Mostly cloudy, with a low around -8.
  • Tuesday A chance of snow. Mostly cloudy, with a high near -3.
  • Tuesday Night A chance of snow. Mostly cloudy, with a low around -16.
  • Wednesday A slight chance of snow. Mostly sunny, with a high near -2.
  • Wednesday Night Partly cloudy, with a low around -9.
  • Thursday Partly sunny, with a high near 6.