Portland, Oregon

Last updated: 3:15 AM CDT  ·  Refresh
19°C
Feels like 19°
Clear
▲ 34°  /  ▼ 12°
Wind
3 mph N
Humidity
61%
Dew Point
13°
Pressure
29.86 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
Sunrise
6:01 AM
Sunset
8:28 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Portland is currently clear at 19°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:01AM · Sunset: 8:28PM.

Alerts

No active alerts for this location.
40 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
19°
3%
2 AM
19°
3%
3 AM
18°
3%
4 AM
18°
3%
5 AM
13°
3%
6 AM
13°
3%
7 AM
14°
3%
8 AM
16°
3%
9 AM
17°
3%
10 AM
19°
3%
11 AM
21°
3%
12 PM
23°
3%
1 PM
28°
3%
2 PM
30°
3%
3 PM
31°
3%
4 PM
31°
3%
5 PM
34°
3%
6 PM
32°
3%
7 PM
31°
3%
8 PM
28°
3%
9 PM
25°
3%
10 PM
24°
3%
11 PM
23°
3%
12 AM
22°
3%
7-Day Forecast
Today
34° 12°
Mostly Clear.
Sun
30° 12°
Mostly Clear.
Mon
31° 12°
Partly Cloudy.
Tue
33° 12°
Overcast.
Wed
31° 13°
Clear.
Thu
36° 11°
Clear.
Fri
38° 16°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 19° Clear 3% 3 mph N 61%
2 AM 19° Clear 3% 2 mph NNE 63%
3 AM 18° Mostly Clear 3% 3 mph NNE 66%
4 AM 18° Mostly Cloudy 3% 2 mph NNE 68%
5 AM 13° Mostly Cloudy 3% 2 mph NNE 70%
6 AM 13° Mostly Cloudy 3% 2 mph N 69%
7 AM 14° Mostly Cloudy 3% 2 mph N 68%
8 AM 16° Mostly Cloudy 3% 2 mph N 64%
9 AM 17° Partly Cloudy 3% 3 mph N 58%
10 AM 19° Partly Cloudy 3% 4 mph N 51%
11 AM 21° Partly Cloudy 3% 4 mph N 44%
12 PM 23° Clear 3% 5 mph N 38%
1 PM 28° Clear 3% 6 mph NNW 32%
2 PM 30° Clear 3% 7 mph NNW 28%
3 PM 31° Clear 3% 8 mph NNW 26%
4 PM 31° Clear 3% 10 mph NNW 25%
5 PM 34° Clear 3% 11 mph NNW 26%
6 PM 32° Clear 3% 11 mph NNW 30%
7 PM 31° Clear 3% 10 mph NNW 34%
8 PM 28° Clear 3% 10 mph NNW 39%
9 PM 25° Clear 3% 9 mph NNW 45%
10 PM 24° Clear 3% 8 mph NNW 49%
11 PM 23° Clear 3% 7 mph NNW 54%
12 AM 22° Clear 3% 6 mph NNW 57%
15-Day Forecast
Today
8/8
Mostly Clear
3%
12°
34°
Sun
8/9
Mostly Clear
3%
12°
30°
Mon
8/10
Partly Cloudy
16%
12°
31°
Tue
8/11
Overcast
3%
12°
33°
Wed
8/12
Clear
3%
13°
31°
Thu
8/13
Clear
3%
11°
36°
Fri
8/14
Clear
3%
16°
38°
Sat
8/15
Rain
29%
17°
34°
Sun
8/16
Clear
19%
15°
33°
Mon
8/17
Clear
21%
12°
29°
Tue
8/18
Clear
25%
14°
29°
Wed
8/19
Drizzle
60%
13°
27°
Thu
8/20
Drizzle
60%
13°
27°
Fri
8/21
Drizzle
60%
13°
27°
Sat
8/22
Drizzle
60%
13°
28°
40
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
27 AQI 4.9 µg/m³
O3
Ground-level ozone
Dominant
40 AQI 44 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 40 Good 40 27
Sun 29 Good 29 13
Mon 29 Good 29 17
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Sat Aug 8, 07:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE22 J/kg
MUCAPE0 J/kg
SBCIN-11640 J/kg
MLCIN0 J/kg
Lifted Index10.8
Kinematics
0–6 km Shear26 kt
0–1 km Shear3 kt
Eff. Shear—
0–1 km SRH-9
0–3 km SRH-83
Eff. SRH—
Storm Motion215° @ 15 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado-0.0
STP (eff)—
Supercell—
K-Index-2.3
Thermo & Levels
PWAT0.68 in
0–3 km LR2.8 °C/km
700–500 LR6.2 °C/km
Total Totals23.8
LCL922 hPa
LFC—
EL—
Freezing Lvl15,535 ft