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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Cougar Res. OR

7 Day Forecast

For More Weather Information:

Portland, OR Local Forecast Office

Today

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 94 °F

Tonight

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 59 °F

Wednesday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 89 °F

Wednesday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 57 °F

Thursday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 88 °F

Thursday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 58 °F

Friday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 88 °F

Friday
Night

Slight Chance Thunderstorms

Slight Chc
Thunderstorms

Low: 54 °F

Saturday

Slight Chance Thunderstorms

Slight Chc
Thunderstorms

High: 90 °F

Detailed Forecast

  • Today A 20 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 94. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
  • Tonight A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 59. 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 89. 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 57. 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 88. Calm wind becoming north around 5 mph in the afternoon.
  • Thursday Night A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 58.
  • Friday A 20 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 88.
  • 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 90.
  • Saturday Night A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54.
  • Sunday Mostly sunny, with a high near 85.
  • Sunday Night Partly cloudy, with a low around 54.
  • Monday Mostly sunny, with a high near 85.