Areal Flood Watch 1:00 AM

Portland, Oregon

Last updated: 11:33 PM CDT  ·  Refresh
26°C
Feels like 26°
Clear
▲ 32°  /  ▼ 15°
Wind
5 mph N
Humidity
54%
Dew Point
16°
Pressure
29.71 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:16 AM
Sunset
8:09 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Portland is currently clear at 26°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:16AM · Sunset: 8:09PM.

Alerts

Areal Flood Watch
Expires 1:00 AM
44 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
3%
10 PM
24°
3%
11 PM
23°
3%
12 AM
23°
3%
1 AM
21°
3%
2 AM
21°
3%
3 AM
20°
3%
4 AM
19°
3%
5 AM
17°
3%
6 AM
17°
3%
7 AM
18°
3%
8 AM
19°
3%
9 AM
18°
3%
10 AM
20°
3%
11 AM
21°
3%
12 PM
22°
5%
1 PM
26°
11%
2 PM
27°
14%
3 PM
27°
15%
4 PM
29°
15%
5 PM
29°
15%
6 PM
28°
15%
7 PM
28°
17%
8 PM
27°
17%
7-Day Forecast
Tonight
32° 15°
Clear.
Fri
30° 17°
Overcast.
Sat
27° 13°
Partly Cloudy with a 25% chance of rain.
Sun
28° 14°
Mostly Cloudy.
Mon
33° 13°
Mostly Clear.
Tue
34° 14°
Clear.
Wed
27° 13°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 26° Clear 3% 5 mph N 54%
10 PM 24° Clear 3% 5 mph NNW 61%
11 PM 23° Clear 3% 5 mph NNW 65%
12 AM 23° Partly Cloudy 3% 3 mph NNW 65%
1 AM 21° Partly Cloudy 3% 2 mph NNW 65%
2 AM 21° Mostly Cloudy 3% 2 mph SSW 67%
3 AM 20° Mostly Cloudy 3% 2 mph SSW 70%
4 AM 19° Mostly Cloudy 3% 2 mph SSW 72%
5 AM 17° Mostly Cloudy 3% 2 mph SSW 73%
6 AM 17° Mostly Cloudy 3% 2 mph SSW 72%
7 AM 18° Mostly Cloudy 3% 2 mph SSW 70%
8 AM 19° Mostly Cloudy 3% 1 mph SSW 67%
9 AM 18° Mostly Cloudy 3% 2 mph SW 62%
10 AM 20° Mostly Cloudy 3% 2 mph SW 58%
11 AM 21° Overcast 3% 3 mph SSW 54%
12 PM 22° Overcast 5% 3 mph SSW 50%
1 PM 26° Overcast 11% 3 mph SSW 47%
2 PM 27° Overcast 14% 3 mph SSW 46%
3 PM 27° Overcast 15% 3 mph SSW 47%
4 PM 29° Overcast 15% 3 mph S 47%
5 PM 29° Overcast 15% 3 mph S 49%
6 PM 28° Overcast 15% 3 mph S 52%
7 PM 28° Overcast 17% 3 mph SSE 55%
8 PM 27° Overcast 17% 2 mph SE 59%
15-Day Forecast
Today
8/20
Clear
3%
15°
32°
Fri
8/21
Overcast
15%
17°
30°
Sat
8/22
Partly Cloudy
25%
13°
27°
Sun
8/23
Mostly Cloudy
16%
14°
28°
Mon
8/24
Mostly Clear
3%
13°
33°
Tue
8/25
Clear
3%
14°
34°
Wed
8/26
Clear
8%
13°
27°
Thu
8/27
Clear
3%
12°
29°
Fri
8/28
Clear
3%
12°
31°
Sat
8/29
Clear
19%
12°
28°
Sun
8/30
Clear
36%
10°
24°
Mon
8/31
Drizzle
60%
10°
26°
Tue
9/1
Drizzle
60%
10°
25°
Wed
9/2
Clear
25%
11°
26°
Thu
9/3
Clear
25%
11°
27°
44
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
42 AQI 7.5 µg/m³
O3
Ground-level ozone
Dominant
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 44 Good 44 42
Sat 64 Moderate 44 64
Sun 55 Moderate 28 55
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 Fri Aug 21, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE5 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index1.6
Kinematics
0–6 km Shear38 kt
0–1 km Shear4 kt
Eff. Shear—
0–1 km SRH28
0–3 km SRH94
Eff. SRH—
Storm Motion255° @ 22 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index6.4
Thermo & Levels
PWAT0.81 in
0–3 km LR4.9 °C/km
700–500 LR7.2 °C/km
Total Totals32.9
LCL865 hPa
LFC—
EL—
Freezing Lvl14,774 ft