National Weather Service United States Department of Commerce

A stalled frontal boundary and ample monsoonal moisture will lead to flash flood potential from the Great Basin to the Great Plains tonight and Tuesday

A stalled frontal boundary will set up along the southern and central Rockies for the next couple of days providing focus for showers and thunderstorms. In addition, ample monsoonal moisture will stream in across the southwest bringing enough moisture to introduce a flash flood threat from the Great Basin and Southwest eastward across the central and southern Rockies into the adjacent Plains.
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Current Conditions

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3 Miles N Cougar Res. OR

7 Day Forecast

For More Weather Information:

Portland, OR Local Forecast Office

Tonight

Mostly Clear

Mostly
Clear

Low: 59 °F

Tuesday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 95 °F

Tuesday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 60 °F

Wednesday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 91 °F

Wednesday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 58 °F

Thursday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 90 °F

Thursday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 58 °F

Friday

Slight Chance Thunderstorms

Slight Chc
Thunderstorms

High: 89 °F

Friday
Night

Slight Chance Thunderstorms

Slight Chc
Thunderstorms

Low: 54 °F

Detailed Forecast

  • Tonight Mostly clear, with a low around 59. Northwest wind 5 to 10 mph becoming light and variable in the evening.
  • Tuesday A 20 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 95. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
  • Tuesday Night A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 60. Northwest wind 5 to 9 mph becoming calm in the evening.
  • Wednesday A 20 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 91. Calm wind becoming northwest 5 to 7 mph in the afternoon.
  • Wednesday Night A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 58. Northwest wind 5 to 8 mph becoming calm in the evening.
  • Thursday A 20 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 90.
  • Thursday Night A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 58.
  • Friday A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89.
  • Friday Night A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54.
  • Saturday A slight chance of showers and thunderstorms. Mostly sunny, with a high near 92.
  • Saturday Night A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54.
  • Sunday Mostly sunny, with a high near 86.
  • Sunday Night Partly cloudy, with a low around 54.
  • Monday Mostly sunny, with a high near 86.