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 93%
Wind Speed E 5 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 04 Sep 06:04 AM PDT
Extended Forecast for

Happy Valley OR

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm.  Partly sunny, with a high near 69. Light and variable wind.

    High: 69 °F

    Partly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: A 10 percent chance of showers after 5am.  Increasing clouds, with a low around 49. Calm wind becoming south around 5 mph.

    Low: 49 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers before 2pm, then a slight chance of showers and thunderstorms between 2pm and 3pm.  Cloudy, then gradually becoming mostly sunny, with a high near 70. Light and variable wind.  Chance of precipitation is 20%.

    High: 70 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50. Light north wind.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 11am.  Partly sunny, with a high near 72. Light and variable wind.

    High: 72 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers, mainly before 11pm.  Partly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

  • Labor Day

    Labor Day: A 20 percent chance of showers before 11am.  Mostly sunny, with a high near 72.

    High: 72 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Partly sunny, with a high near 69. Light and variable wind.
Tonight
A 10 percent chance of showers after 5am. Increasing clouds, with a low around 49. Calm wind becoming south around 5 mph.
Saturday
A slight chance of showers before 2pm, then a slight chance of showers and thunderstorms between 2pm and 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 70. Light and variable wind. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around 50. Light north wind.
Sunday
A 20 percent chance of showers after 11am. Partly sunny, with a high near 72. Light and variable wind.
Sunday Night
A 30 percent chance of showers, mainly before 11pm. Partly cloudy, with a low around 52.
Labor Day
A 20 percent chance of showers before 11am. Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Happy Valley OR
 45.44°N 122.52°W (Elev. 600 ft)
5:41 am PDT Sep 4, 2026
6am PDT Sep 4, 2026-6pm PDT Sep 10, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database