National Weather Service United States Department of Commerce

Heavy rain and mountain snow across the northwestern U.S. this weekend

A Pacific storm system will continue to impact the West Coast through Sunday. Heavy rainfall could lead to flash flooding, river and small stream flooding, as well as mudslides and debris flows, especially over burn scars. At higher elevations, strong winds and heavy snowfall, with accumulations of 1 to 3 feet, could result in hazardous travel through mountain passes.
Read More...

Current Conditions

En Español

Share |

Lewiston ID

7 Day Forecast

For More Weather Information:

Spokane, WA Local Forecast Office

Tonight

Rain Chance for Measurable Precipitation 90%

Rain

Low: 6 °C

Sunday

Rain Likely Chance for Measurable Precipitation 60%

Rain
Likely

High: 13 °C

Sunday
Night

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

Low: 5 °C

Monday

Slight Chance Rain Chance for Measurable Precipitation 20%

Slight Chc
Rain

High: 9 °C

Monday
Night

Slight Chance Rain Chance for Measurable Precipitation 10%

Slight Chc
Rain

Low: 1 °C

Tuesday

Chance Rain Chance for Measurable Precipitation 30%

Chance
Rain

High: 8 °C

Tuesday
Night

Chance Rain Chance for Measurable Precipitation 30%

Chance
Rain

Low: 3 °C

Wednesday

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

High: 6 °C

Wednesday
Night

Chance Rain Chance for Measurable Precipitation 40%

Chance
Rain

Low: 0 °C

Detailed Forecast

  • Tonight Rain. Low around 6. Southeast wind 11 to 16 km/h becoming west after midnight. Chance of precipitation is 90%. New precipitation amounts between 5 and 7.5 mm possible.
  • Sunday Rain likely, mainly before 11am. Cloudy, with a high near 13. Breezy, with a west wind 32 to 42 km/h, with gusts as high as 50 km/h. Chance of precipitation is 60%. New precipitation amounts between 2.5 and 5 mm possible.
  • Sunday Night A 50 percent chance of rain, mainly before 5am. Cloudy, with a low around 5. West wind 21 to 26 km/h decreasing to 14 to 19 km/h after midnight. Winds could gust as high as 37 km/h. New precipitation amounts between 1 and 2.5 mm possible.
  • Monday A 20 percent chance of rain before 11am. Partly sunny, with a high near 9. West wind 14 to 16 km/h.
  • Monday Night A 10 percent chance of rain after 5am. Mostly cloudy, with a low around 1. Calm wind.
  • Tuesday A 30 percent chance of rain, mainly after 11am. Partly sunny, with a high near 8.
  • Tuesday Night A 30 percent chance of rain. Mostly cloudy, with a low around 3.
  • Wednesday A 50 percent chance of rain. Cloudy, with a high near 6.
  • Wednesday Night A chance of rain. Cloudy, with a low around 0. Chance of precipitation is 40%.
  • Christmas Day A chance of rain and snow. Mostly cloudy, with a high near 4. Chance of precipitation is 30%.
  • Thursday Night A 20 percent chance of snow. Mostly cloudy, with a low around -2.
  • Friday Partly sunny, with a high near 4.
  • Friday Night A slight chance of rain and snow. Mostly cloudy, with a low around -1. Chance of precipitation is 20%.
  • Saturday A 20 percent chance of snow. Mostly cloudy, with a high near 5.