Weather for Hillsboro, Oregon
Current Weather
Humidity: 74%
Feels Like: 51.6°F
Wind: E 2.2 mph
Wind Gusts: 6.7 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0.1
Five Day Weather Forecast
Fri
H: 49°F
L: 36°F
Sat
H: 45°F
L: 35°F
Sun
H: 51°F
L: 39°F
Mon
H: 45°F
L: 37°F
Tue
H: 44°F
L: 37°F
Air Quality
Nitrogen Dioxide: 52.75 μg/m3
Sulphur Dioxide: 5.45 μg/m3
Ozone: 2 μg/m3
Astronomical
Sun Transit: 11:57 AM
Sunset: 4:36 PM
Daylight: 9 hrs 17 mins
Moon Transit: 1:09 PM
Moonset: 5:06 PM
Moon Phase: New
Moon Illumination: 0.5%
Best Times for Fishing or Hunting
Major Periods
8:32 PM - 11:02 PM12:39 AM - 3:09 PM
Minor Periods
4:36 PM - 6:06 PM8:41 AM - 10:11 AM
Action Rating: 4 out of 5
Dense Fog Advisory issued November 21 at 1:13AM PST until November 21 at 10:00AM PST by NWS Portland OR
Effective: Fri November 21, 2025, 1:13 AM
Expires: Fri November 21, 2025, 10:00 AM
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Central and Southern Willamette Valley, Portland Metro Lowlands, Greater Vancouver Metro, Lower Columbia River and Cowlitz River Valleys, and Portland West Hills and Chehalem Mountain. * WHEN...Until 10 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
If driving, slow down, use your headlights, and leave plenty of distance ahead of you. If driving, slow down and leave plenty of distance ahead of you. Pedestrians and cyclists should wear bright or reflective clothing to increase the chances of being seen by others in poor visibility conditions.
Dense Fog Advisory issued November 21 at 9:27AM PST until November 21 at 1:00PM PST by NWS Portland OR
Effective: Fri November 21, 2025, 9:27 AM
Expires: Fri November 21, 2025, 1:00 PM
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Central and Southern Willamette Valley. * WHEN...Until 1 PM PST this afternoon. * IMPACTS...Low visibility could make driving conditions hazardous.
If driving, slow down, use your headlights, and leave plenty of distance ahead of you. If driving, slow down and leave plenty of distance ahead of you. Pedestrians and cyclists should wear bright or reflective clothing to increase the chances of being seen by others in poor visibility conditions.
Beach Hazards Statement issued November 21 at 1:35AM PST until November 24 at 4:00AM PST by NWS Portland OR
Effective: Fri November 21, 2025, 1:35 AM
Expires: Fri November 21, 2025, 8:00 PM
* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...Through late Sunday night. * IMPACTS...Waves can run up significantly farther on a beach than normal, including over rocks and jetties. Sneaker waves can suddenly knock people off of their feet and quickly pull them into the frigid ocean which may lead to serious injury or drowning. * ADDITIONAL DETAILS...A Beach Hazards Statement is issued when sneaker waves create potentially life-threatening conditions in the surf zone. Caution should be used when in or near the water. Always keep an eye on the waves, and be especially watchful of children. Those participating in razor clam digs should exercise caution.
Remain out of the water to avoid hazardous swimming conditions.
Weather Forecast
Average Temperature: 41.7°F
Average Humidity: 90%
Wind: 3.6 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 40.98 μg/m3
Sulphur Dioxide: 5.14 μg/m3
Ozone: 18.6 μg/m3
Astronomical
Sun Transit: 11:57 AM
Sunset: 4:36 PM
Daylight: 9 hrs 17 mins
Moon Transit: 1:09 PM
Moonset: 5:06 PM
Moon Phase: New
Moon Illumination: 0.5%
Best Times for Fishing or Hunting
Major Periods
8:32 PM - 11:02 PM12:39 AM - 3:09 PM
Minor Periods
4:36 PM - 6:06 PM8:41 AM - 10:11 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 41.2°F
Average Humidity: 97%
Wind: 2.5 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 40.41 μg/m3
Sulphur Dioxide: 4.78 μg/m3
Ozone: 17.84 μg/m3
Astronomical
Sun Transit: 11:58 AM
Sunset: 4:35 PM
Daylight: 9 hrs 14 mins
Moon Transit: 2:01 PM
Moonset: 5:56 PM
Moon Phase: New
Moon Illumination: 3.3%
Best Times for Fishing or Hunting
Major Periods
9:24 PM - 11:54 PM1:31 PM - 4:01 PM
Minor Periods
5:26 PM - 6:56 PM9:37 AM - 11:07 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 43.8°F
Average Humidity: 89%
Wind: 5.8 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 34.73 μg/m3
Sulphur Dioxide: 3.73 μg/m3
Ozone: 20.44 μg/m3
Astronomical
Sun Transit: 11:58 AM
Sunset: 4:35 PM
Daylight: 9 hrs 12 mins
Moon Transit: 2:53 PM
Moonset: 6:56 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.5%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:23 PM - 4:53 PM
Minor Periods
6:26 PM - 7:56 PM10:25 AM - 11:55 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 40°F
Average Humidity: 89%
Wind: 4.5 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 12.67 μg/m3
Sulphur Dioxide: 2.33 μg/m3
Ozone: 52.96 μg/m3
Astronomical
Sun Transit: 11:58 AM
Sunset: 4:34 PM
Daylight: 9 hrs 10 mins
Moon Transit: 3:44 PM
Moonset: 8:02 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM3:14 PM - 5:44 PM
Minor Periods
7:32 PM - 9:02 PM11:03 AM - 12:33 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 40.4°F
Average Humidity: 90%
Wind: 2.2 mph
UV Index: 0.1
Air Quality
Nitrogen Dioxide: 41.97 μg/m3
Sulphur Dioxide: 4.66 μg/m3
Ozone: 15.54 μg/m3
Astronomical
Sun Transit: 12:00 AM
Sunset: 4:33 PM
Daylight: 9 hrs 9 mins
Moon Transit: 4:33 PM
Moonset: 9:12 PM
Moon Phase: Waxing Crescent
Moon Illumination: 25.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM4:03 PM - 6:33 PM
Minor Periods
8:42 PM - 10:12 PM11:33 AM - 1:03 PM
Action Rating: 2 out of 5