National Weather Service United States Department of Commerce

Heavy rain possible for parts of the northern Rockies & Plains; Severe storms for the Upper Midwest

An unseasonably strong storm system in the northwest U.S. will bring showers and thunderstorms, some heavy, to parts of the northern Rockies and northern Plains through Saturday. Isolated flash floods will be possible in these areas. Some of the storms could be severe in parts of the Dakotas into Minnesota, with large hail and damaging winds.
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Current Conditions

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Lewiston ID

7 Day Forecast

For More Weather Information:

Spokane, WA Local Forecast Office

Overnight

Isolated Showers Chance for Measurable Precipitation 20%

Isolated
Showers

Low: 16 °C

Saturday

Partly Sunny

Partly
Sunny

High: 28 °C

Saturday
Night

Partly Cloudy

Partly
Cloudy

Low: 16 °C

Sunday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 29 °C

Sunday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 17 °C

Monday

Partly Sunny

Partly
Sunny

High: 30 °C

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 14 °C

Tuesday

Sunny

Sunny

High: 32 °C

Tuesday
Night

Mostly Clear

Mostly
Clear

Low: 17 °C

Detailed Forecast

  • Overnight Isolated showers. Mostly cloudy, with a low around 16. South wind around 13 km/h. Chance of precipitation is 20%.
  • Saturday Partly sunny, with a high near 28. West wind 8 to 11 km/h.
  • Saturday Night Partly cloudy, with a low around 16. East wind 5 to 10 km/h becoming calm.
  • Sunday A 20 percent chance of showers and thunderstorms after 11am. Partly sunny, with a high near 29. South wind 5 to 10 km/h.
  • Sunday Night A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 17. Calm wind. Chance of precipitation is 20%.
  • Monday Partly sunny, with a high near 30.
  • Monday Night Partly cloudy, with a low around 14.
  • Tuesday Sunny, with a high near 32.
  • Tuesday Night Mostly clear, with a low around 17.
  • Wednesday Sunny, with a high near 34.
  • Wednesday Night Mostly clear, with a low around 19.
  • Thursday Mostly sunny, with a high near 33.
  • Thursday Night Partly cloudy, with a low around 18.
  • Friday Mostly sunny, with a high near 31.