Heat Advisory — San Juan County, WA, Foothills and Valleys of the North Cascades, WA, Foothills and Valleys of Thurston and Lewis Counties, WA, Lowlands of Western Whatcom County, WA, Lowlands of Western Skagit and Northwestern Snohomish Counties, WA, Olympia and Southern Puget Sound, WA, Lowlands of Lewis and Southern Thurston Counties, WA, Middle Chehalis River Valley, WA, Willapa and Black Hills, WA, Southern Hood Canal, WA, Northern Hood Canal, WA, Port Townsend Area, WA, Eastern Strait of Juan de Fuca, WA, Foothills of the Western and Southern Olympic Peninsula, WA, Lower Chehalis River Valley, WA, Island County, WA, Foothills and Valleys of Snohomish and Northern King Counties, WA, Foothills and Valleys of Central King County, WA, Foothills and Valleys of Pierce and Southern King Counties, WA, Downtown Everett / Marysville Area, WA, Shoreline / Lynnwood / South Everett Area, WA, Eastside, WA, City of Seattle, WA, Lowlands of Pierce and Southern King Counties, WA, Eastern Kitsap County, WA 1:00 AM

Port Townsend, Washington

Last updated: 7:33 PM CDT  ·  Refresh
22°C
Feels like 21°
Mostly Clear
▲ 25°  /  ▼ 14°
Wind
8 mph NNW
Humidity
56%
Dew Point
10°
Pressure
29.88 inHg
Visibility
10 mi
UV Index
6.5
Cloud Cover
29%
Sunrise
5:11 AM
Sunset
9:15 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Port Townsend is currently mostly clear at 22°C. Dry conditions are expected through the next 24 hours. Sunrise: 5:11AM · Sunset: 9:15PM.

Alerts

Heat Advisory
San Juan County, WA, Foothills and Valleys of the North Cascades, WA, Foothills and Valleys of Thurston and Lewis Counties, WA, Lowlands of Western Whatcom County, WA, Lowlands of Western Skagit and Northwestern Snohomish Counties, WA, Olympia and Southern Puget Sound, WA, Lowlands of Lewis and Southern Thurston Counties, WA, Middle Chehalis River Valley, WA, Willapa and Black Hills, WA, Southern Hood Canal, WA, Northern Hood Canal, WA, Port Townsend Area, WA, Eastern Strait of Juan de Fuca, WA, Foothills of the Western and Southern Olympic Peninsula, WA, Lower Chehalis River Valley, WA, Island County, WA, Foothills and Valleys of Snohomish and Northern King Counties, WA, Foothills and Valleys of Central King County, WA, Foothills and Valleys of Pierce and Southern King Counties, WA, Downtown Everett / Marysville Area, WA, Shoreline / Lynnwood / South Everett Area, WA, Eastside, WA, City of Seattle, WA, Lowlands of Pierce and Southern King Counties, WA, Eastern Kitsap County, WA
Expires 1:00 AM
36 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
13%
6 PM
25°
31%
7 PM
24°
23%
8 PM
23°
21%
9 PM
19°
21%
10 PM
19°
14%
11 PM
18°
3%
12 AM
18°
3%
1 AM
16°
3%
2 AM
16°
3%
3 AM
16°
3%
4 AM
15°
3%
5 AM
15°
3%
6 AM
16°
3%
7 AM
16°
3%
8 AM
16°
5%
9 AM
19°
5%
10 AM
19°
5%
11 AM
20°
5%
12 PM
20°
5%
1 PM
23°
9%
2 PM
23°
19%
3 PM
22°
19%
4 PM
22°
20%
7-Day Forecast
Today
25° 14°
Rain, 21% chance.
Wed
24° 12°
Mostly Cloudy with a 22% chance of rain.
Thu
20° 12°
Rain, 69% chance.
Fri
19° 11°
Rain, 90% chance.
Sat
20° 11°
Drizzle, 56% chance.
Sun
20° 11°
Rain, 33% chance.
Mon
20° 11°
Rain, 24% chance.
TimeTempConditionsPrecipWindHumidity
Now 22° Mostly Clear 13% 8 mph NNW 56%
6 PM 25° Partly Cloudy 31% 8 mph NW 54%
7 PM 24° Rain 23% 9 mph NW 56%
8 PM 23° Rain 21% 9 mph NW 58%
9 PM 19° Rain 21% 8 mph NW 59%
10 PM 19° Drizzle 14% 8 mph NW 62%
11 PM 18° Clear 3% 7 mph NW 65%
12 AM 18° Mostly Clear 3% 6 mph WNW 67%
1 AM 16° Partly Cloudy 3% 7 mph WNW 68%
2 AM 16° Mostly Cloudy 3% 8 mph WNW 69%
3 AM 16° Mostly Cloudy 3% 7 mph WNW 69%
4 AM 15° Overcast 3% 6 mph WNW 70%
5 AM 15° Overcast 3% 5 mph WNW 70%
6 AM 16° Overcast 3% 4 mph WNW 70%
7 AM 16° Mostly Cloudy 3% 4 mph WNW 70%
8 AM 16° Mostly Cloudy 5% 3 mph WNW 69%
9 AM 19° Partly Cloudy 5% 3 mph NW 68%
10 AM 19° Partly Cloudy 5% 3 mph NW 67%
11 AM 20° Partly Cloudy 5% 4 mph NW 66%
12 PM 20° Partly Cloudy 5% 5 mph NW 66%
1 PM 23° Mostly Cloudy 9% 6 mph NW 66%
2 PM 23° Mostly Cloudy 19% 7 mph NW 67%
3 PM 22° Mostly Cloudy 19% 8 mph NW 69%
4 PM 22° Mostly Cloudy 20% 10 mph WNW 70%
15-Day Forecast
Today
6/23
Rain
21%
14°
25°
Wed
6/24
Mostly Cloudy
22%
12°
24°
Thu
6/25
Rain
69%
12°
20°
Fri
6/26
Rain
90%
11°
19°
Sat
6/27
Drizzle
56%
11°
20°
Sun
6/28
Rain
33%
11°
20°
Mon
6/29
Rain
24%
11°
20°
Tue
6/30
Clear
51%
11°
20°
Wed
7/1
Rain
72%
10°
19°
Thu
7/2
Drizzle
41%
10°
22°
Fri
7/3
Rain
53%
11°
19°
Sat
7/4
Rain
50%
11°
22°
Sun
7/5
Clear
38%
11°
23°
Mon
7/6
Clear
20%
11°
24°
Tue
7/7
Clear
20%
12°
25°
36
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
31 AQI 5.7 µg/m³
O3
Ground-level ozone
Dominant
36 AQI 40 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 36 Good 36 31
Thu 37 Good 29 37
Fri 31 Good 27 31
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 Tue Jun 23, 23:00'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
MLCAPE14 J/kg
MUCAPE17 J/kg
SBCIN-10361 J/kg
MLCIN0 J/kg
Lifted Index2.6
Kinematics
0–6 km Shear10 kt
0–1 km Shear6 kt
Eff. Shear—
0–1 km SRH-6
0–3 km SRH-28
Eff. SRH—
Storm Motion101° @ 13 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado-0.0
STP (eff)—
Supercell—
K-Index31.0
Thermo & Levels
PWAT0.89 in
0–3 km LR6.1 °C/km
700–500 LR7.0 °C/km
Total Totals51.5
LCL845 hPa
LFC—
EL—
Freezing Lvl11,450 ft