Portland Hillsboro Airport Weather Forecast 15 Days, Weather in HIO Today
Current weather conditions and 15 day weather forecast for Portland Hillsboro Airport, Oregon, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Portland Hillsboro Airport
| 21 August 2026 Friday 21 ° C / 69.8°F  Overcast |
Feels Like : 21.6 ° C / 70.9°F Humidity : % 64 Pressure : 1013 mb Wind Speed : 3.6 kmph / 2.2 miles from NNW  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Portland Hillsboro Airport, OR, USA
Weather Forecast for next 15 Days for Portland Hillsboro Airport including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Portland Hillsboro Airport, Oregon state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 21 August 2026 Friday | Overcast |
17.3 ° C (63.1°F) |
30.4 ° C (86.7°F) |
23.1 ° C (73.5°F) |
% 58 | 25% | 5.5 | Sunrise:06:19 AM Sunset: 08:09 PM |
Moonrise:04:54 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 22 August 2026 Saturday |  Sunny |
14.6 ° C (58.3°F) |
27.2 ° C (81°F) |
19.2 ° C (66.5°F) |
% 69 | 57% | 6.4 | Sunrise:06:20 AM Sunset: 08:08 PM |
Moonrise:05:43 PM Moonset: 12:45 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 August 2026 Sunday | Sunny |
13.3 ° C (56°F) |
26.5 ° C (79.8°F) |
19 ° C (66.2°F) |
% 64 | 7% | 6.6 | Sunrise:06:22 AM Sunset: 08:06 PM |
Moonrise:06:21 PM Moonset: 01:43 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 August 2026 Monday | Sunny |
13.3 ° C (55.9°F) |
30.4 ° C (86.7°F) |
21.1 ° C (70°F) |
% 58 | 3% | 6.6 | Sunrise:06:23 AM Sunset: 08:04 PM |
Moonrise:06:52 PM Moonset: 02:47 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 August 2026 Tuesday | Overcast |
14.8 ° C (58.7°F) |
28.9 ° C (84°F) |
21.1 ° C (70°F) |
% 54 | 7% | 6 | Sunrise:06:24 AM Sunset: 08:02 PM |
Moonrise:07:16 PM Moonset: 03:53 AM Moon Phase ( Full Moon ) |
|
| 26 August 2026 Wednesday | Sunny |
13.2 ° C (55.7°F) |
23.2 ° C (73.8°F) |
17.6 ° C (63.7°F) |
% 60 | 6% | 6 | Sunrise:06:25 AM Sunset: 08:01 PM |
Moonrise:07:36 PM Moonset: 04:59 AM Moon Phase ( Full Moon ) |
|
| 27 August 2026 Thursday | Sunny |
10.1 ° C (50.2°F) |
24.5 ° C (76.1°F) |
16.3 ° C (61.3°F) |
% 58 | 4% | 6 | Sunrise:06:27 AM Sunset: 07:59 PM |
Moonrise:07:54 PM Moonset: 06:05 AM Moon Phase ( Full Moon ) |
|
| 28 August 2026 Friday | Sunny |
9.9 ° C (49.8°F) |
26.5 ° C (79.7°F) |
17.3 ° C (63.2°F) |
% 59 | 4% | 7 | Sunrise:06:28 AM Sunset: 07:57 PM |
Moonrise:08:10 PM Moonset: 07:11 AM Moon Phase ( Full Moon ) |
|
| 29 August 2026 Saturday | Sunny |
11.4 ° C (52.5°F) |
26.7 ° C (80°F) |
17.7 ° C (63.8°F) |
% 53 | 3% | 7 | Sunrise:06:29 AM Sunset: 07:55 PM |
Moonrise:08:26 PM Moonset: 08:16 AM Moon Phase ( Waning Gibbous ) |
|
| 30 August 2026 Sunday | Sunny |
9.1 ° C (48.5°F) |
22.3 ° C (72.1°F) |
15.2 ° C (59.4°F) |
% 61 | 5% | 6 | Sunrise:06:30 AM Sunset: 07:53 PM |
Moonrise:08:42 PM Moonset: 09:22 AM Moon Phase ( Waning Gibbous ) |
|
| 31 August 2026 Monday | Overcast |
10.5 ° C (50.9°F) |
24.9 ° C (76.7°F) |
17 ° C (62.7°F) |
% 57 | 9% | 5 | Sunrise:06:31 AM Sunset: 07:51 PM |
Moonrise:09:01 PM Moonset: 10:29 AM Moon Phase ( Waning Gibbous ) |
|
| 01 September 2026 Tuesday | Overcast |
13.2 ° C (55.8°F) |
24.2 ° C (75.5°F) |
17.8 ° C (64°F) |
% 47 | 10% | 5 | Sunrise:06:33 AM Sunset: 07:50 PM |
Moonrise:09:23 PM Moonset: 11:40 AM Moon Phase ( Waning Gibbous ) |
|
| 02 September 2026 Wednesday | Sunny |
14.1 ° C (57.3°F) |
27.5 ° C (81.4°F) |
19.3 ° C (66.7°F) |
% 49 | 4% | 7 | Sunrise:06:34 AM Sunset: 07:48 PM |
Moonrise:09:52 PM Moonset: 12:53 PM Moon Phase ( Last Quarter ) |
|
| 03 September 2026 Thursday | Sunny |
11.1 ° C (52°F) |
26.8 ° C (80.2°F) |
17.3 ° C (63.1°F) |
% 57 | 4% | 7 | Sunrise:06:35 AM Sunset: 07:46 PM |
Moonrise:10:29 PM Moonset: 02:07 PM Moon Phase ( Last Quarter ) |
|
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