National Weather Service United States Department of Commerce

Wet weather continues across Pacific Northwest, tapering off in New England

A series of storm systems will bring several rounds of rain to the Pacific Northwest and northern California over the next several days. Heavy rain, high winds and thunderstorms are expected, especially along the coast. Meanwhile, rain and gusty winds will taper off across New England as the coastal low that has been affecting that area moves offshore.
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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

Mostly Cloudy

Mostly
Cloudy

High: 14 °C

Tonight

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

Low: 3 °C

Saturday

Sunny

Sunny

High: 19 °C

Saturday
Night

Mostly Clear

Mostly
Clear

Low: 6 °C

Sunday

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

High: 13 °C

Sunday
Night

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

Low: 1 °C

Monday

Slight Chance Rain/Snow Chance for Measurable Precipitation 20%

Slight Chc
Rain/Snow

High: 7 °C

Monday
Night

Mostly Cloudy

Mostly
Cloudy

Low: -4 °C

Tuesday

Mostly Sunny

Mostly
Sunny

High: 11 °C

Detailed Forecast

  • This Afternoon Mostly cloudy, with a high near 14. West wind 13 to 16 km/h.
  • Tonight A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 3. Light and variable wind becoming southeast 6 to 11 km/h after midnight.
  • Saturday Sunny, with a high near 19. Southeast wind 11 to 14 km/h.
  • Saturday Night Mostly clear, with a low around 6. South wind around 14 km/h.
  • Sunday A 20 percent chance of showers after noon. Partly sunny, with a high near 13. West southwest wind 16 to 21 km/h increasing to 27 to 32 km/h in the afternoon. Winds could gust as high as 45 km/h.
  • Sunday Night A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 1.
  • Monday A slight chance of rain and snow showers. Partly sunny, with a high near 7. Chance of precipitation is 20%.
  • Monday Night Mostly cloudy, with a low around -4.
  • Tuesday Mostly sunny, with a high near 11.
  • Tuesday Night Mostly cloudy, with a low around 2.
  • Wednesday A slight chance of showers. Partly sunny, with a high near 13.
  • Wednesday Night Mostly cloudy, with a low around 1.
  • Thursday Partly sunny, with a high near 12.