National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Portland, Portland-Troutdale Airport (KTTD)

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

Rain

63°F

17°C

Humidity 82%
Wind Speed N 0 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 57°F (14°C)
Visibility 9.00 mi
Last update 29 Sep 02:00 PM PDT
Extended Forecast for

4 Miles NNE Happy Valley OR

  • This Afternoon

    This Afternoon: Rain. Steady temperature around 65. South southwest wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Rain

  • Tonight

    Tonight: A 30 percent chance of rain before 9pm. Mostly cloudy, with a low around 52. South southwest wind around 7 mph becoming southeast after midnight.

    Low: 52 °F

    Chance Rain
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Rain, mainly after 1pm. High near 70. Southeast wind 7 to 13 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 70 °F

    Mostly Sunny
    then Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 55. South wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Rain

  • Wednesday

    Wednesday: Rain likely, then showers and possibly a thunderstorm after 11am. High near 66. South wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.

    Low: 53 °F

    Rain Likely

  • Thursday

    Thursday: Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.

    High: 65 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of rain before 11pm. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance Rain
    then Mostly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Rain. Steady temperature around 65. South southwest wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A 30 percent chance of rain before 9pm. Mostly cloudy, with a low around 52. South southwest wind around 7 mph becoming southeast after midnight.
Tuesday
Rain, mainly after 1pm. High near 70. Southeast wind 7 to 13 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain. Low around 55. South wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain likely, then showers and possibly a thunderstorm after 11am. High near 66. South wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Thursday
Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.
Thursday Night
A chance of rain before 11pm. Mostly cloudy, with a low around 51.
Friday
Partly sunny, with a high near 68.
Friday Night
A chance of rain after 11pm. Mostly cloudy, with a low around 51.
Saturday
A slight chance of rain. Partly sunny, with a high near 66.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Happy Valley OR
 45.51°N 122.51°W (Elev. 325 ft)
Last Update:
2:06 pm PDT Sep 29, 2025
Forecast Valid:
2pm PDT Sep 29, 2025-6pm PDT Oct 5, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation