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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

Portland, Portland-Troutdale Airport (KTTD)

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

Mist

41°F

5°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 41°F (5°C)
Visibility 5.00 mi
Last update 18 Oct 04:15 AM PDT
Extended Forecast for

3 Miles NNE Happy Valley OR

  • Today

    Today: Mostly sunny, with a high near 65. North wind 3 to 5 mph.

    High: 65 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. Light and variable wind.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: Cloudy, with a high near 61. Light and variable wind.

    High: 61 °F

    Cloudy

  • Monday Night

    Monday Night: Cloudy, then gradually becoming partly cloudy, with a low around 43. Light north wind.

    Low: 43 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70. North northeast wind 5 to 8 mph.

    High: 70 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 65. North wind 3 to 5 mph.
Tonight
Mostly cloudy, with a low around 45. Light and variable wind.
Monday
Cloudy, with a high near 61. Light and variable wind.
Monday Night
Cloudy, then gradually becoming partly cloudy, with a low around 43. Light north wind.
Tuesday
Mostly sunny, with a high near 70. North northeast wind 5 to 8 mph.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 71.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 43.
Friday
A chance of rain. Partly sunny, with a high near 59.
Friday Night
Partly cloudy, with a low around 41.
Saturday
A slight chance of rain. Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Happy Valley OR
 45.49°N 122.5°W (Elev. 587 ft)
Last Update:
3:41 am PDT Oct 18, 2026
Forecast Valid:
4am PDT Oct 18, 2026-6pm PDT Oct 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation