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

Tropical Storm Edouard to Impact the Northwest Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard will bring tropical storm to hurricane conditions, heavy rainfall, flash and some river flooding, and storm surge to portions of Upper Texas and southwestern Louisiana coasts into Wednesday. Severe thunderstorms are possible in the Central Plains and Mid-Atlantic. Hot and humid conditions will expand from the Central Plains into the Ohio Valley and Mid-Atlantic. Read More >

Current conditions at

Portland-Hillsboro Airport (KHIO)

Lat: 45.54765°NLon: 122.95568°WElev: 194.0ft.

Overcast

61°F

16°C

Humidity 82%
Wind Speed SE 4 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 01 Sep 10:35 AM PDT
Extended Forecast for

Hillsboro OR

  • Today

    Today: Mostly cloudy, with a high near 73. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 73 °F

    Mostly Cloudy

  • Tonight

    Tonight: Increasing clouds, with a low around 55. Calm wind becoming south 5 to 8 mph after midnight. Winds could gust as high as 20 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Rain, mainly after 10am. High near 65. South wind 7 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 65 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain. Low around 51. Light south southwest wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F

    Rain then
    Rain Likely

  • Thursday

    Thursday: Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 66. South wind around 9 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 66 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 8pm, then rain, mainly between 8pm and 11pm. Low around 50. Chance of precipitation is 80%.

    Low: 50 °F

    Showers then
    Chance Rain

  • Friday

    Friday: A chance of rain before 11am, then a chance of showers and thunderstorms after 11am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 70. Chance of precipitation is 50%.

    High: 70 °F

    Chance
    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain. Partly sunny, with a high near 74.

    High: 74 °F

    Chance Rain

Detailed Forecast

Today
Mostly cloudy, with a high near 73. Calm wind becoming south southwest around 5 mph in the afternoon.
Tonight
Increasing clouds, with a low around 55. Calm wind becoming south 5 to 8 mph after midnight. Winds could gust as high as 20 mph.
Wednesday
Rain, mainly after 10am. High near 65. South wind 7 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Low around 51. Light south southwest wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 66. South wind around 9 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and possibly a thunderstorm before 8pm, then rain, mainly between 8pm and 11pm. Low around 50. Chance of precipitation is 80%.
Friday
A chance of rain before 11am, then a chance of showers and thunderstorms after 11am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 70. Chance of precipitation is 50%.
Friday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 50.
Saturday
A chance of rain. Partly sunny, with a high near 74.
Saturday Night
A chance of rain, mainly after 11pm. Partly cloudy, with a low around 53.
Sunday
A chance of rain. Partly sunny, with a high near 75.
Sunday Night
A chance of rain. Partly cloudy, with a low around 53.
Labor Day
A chance of rain. Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.53°N 122.95°W (Elev. 200 ft)
Last Update:
10:41 am PDT Sep 1, 2026
Forecast Valid:
10am PDT Sep 1, 2026-6pm PDT Sep 7, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation