Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

Current conditions at

Portland, Portland-Troutdale Airport (KTTD)

Lat: 45.55111°NLon: 122.40889°WElev: 36.0ft.

Overcast

55°F

13°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 05 Sep 08:00 AM PDT
Extended Forecast for

Happy Valley OR

  • Today

    Today: Mostly sunny, with a high near 70. Light northwest wind.

    High: 70 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers after 4am.  Increasing clouds, with a low around 51. Light and variable wind.

    Low: 51 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers before 10am, then a slight chance of showers after 4pm.  Cloudy, then gradually becoming mostly sunny, with a high near 70. Calm wind becoming west northwest around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 70 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 11pm.  Mostly cloudy, with a low around 53. Calm wind becoming southwest around 5 mph after midnight.

    Low: 53 °F

    Chance
    Showers then
    Mostly Cloudy

  • Labor Day

    Labor Day: Mostly cloudy, then gradually becoming sunny, with a high near 70. South southwest wind 3 to 5 mph.

    High: 70 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 70. Light northwest wind.
Tonight
A 20 percent chance of showers after 4am. Increasing clouds, with a low around 51. Light and variable wind.
Sunday
A slight chance of showers before 10am, then a slight chance of showers after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 70. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
A 30 percent chance of showers before 11pm. Mostly cloudy, with a low around 53. Calm wind becoming southwest around 5 mph after midnight.
Labor Day
Mostly cloudy, then gradually becoming sunny, with a high near 70. South southwest wind 3 to 5 mph.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 55.
Friday
A slight chance of rain. Partly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Happy Valley OR
 45.44°N 122.52°W (Elev. 600 ft)
7:41 am PDT Sep 5, 2026
8am PDT Sep 5, 2026-6pm PDT Sep 11, 2026
 
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Additional Resources

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Hourly Weather Forecast

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