Weather StoryAlmanac, microseasons, and the day's weather story.

Seattle, Washington Weather

August Arrives Dimmed. Day 43 of summer. Read this microseason across nine climate regions →

Seattle weather forecast — hour by hour, 7-day outlook, NOAA radar

Seattle, WA
Saturday, August 1 at 11:15 PM
59
°
Mostly Clear
Feels like
58°
Humidity
75%
Wind
5 mph
Sunrise
10:47 PM
Sunset
1:43 PM
Seattle, WA
Hour by hour · 24h
24-Hour ForecastSeattle, WA: 24-hour forecast. Temperatures range from 55 to 67 degrees Fahrenheit.
L 55°H 67°
Seattle, WA
7-day forecast
  1. Today
    Aug 1
    Overcast
    22%
    —
    72°59°—
  2. Sunday
    Aug 2
    Overcast
    —
    —
    67°55°-5°
  3. Monday
    Aug 3
    Clear
    —
    —
    75°51°+8°
  4. Tuesday
    Aug 4
    Mostly Clear
    —
    —
    83°53°+8°
  5. Wednesday
    Aug 5
    Partly Cloudy
    —
    —
    87°56°+4°
  6. Thursday
    Aug 6
    Partly Cloudy
    —
    —
    93°58°+6°
  7. Friday
    Aug 7
    Mostly Clear
    —
    —
    91°58°-2°
Seattle, WA
Next 24 hours · Cool now
52°61°70°12a6a12p6pnow 60°high 67°low 55°
Seattle, WA
Anemometer · 24h winds · from true
NESW
From · True
S
180° · veering 50°
Direction
S
180°
Sustained
5
mph
Gust
9
mph
Peak 24h
26
avg 8 mph
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 8 mph · pk 26 mph @ 5:00a
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 205SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 50° from the s.
Seattle, WA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1011.4
-0.2 mb in 3h · steady · 29.87 inHg
Now
1011.4
mb
3h
-0.2
mb
12h
+2.0
mb
24h
+4.9
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1006–1012
1000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1011.91006.41011.3
Air sits at the threshold — small shifts decide the day.
Seattle, WA
Air quality
26
AQI
Good
→+4 in 6h

AQI 26 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 4.8 µg/m³ (AQI 27) with a 0.69 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in stagnant air, not road dust.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERGood
4.8μg/m³
PM 10Good
7μg/m³
NO₂Good
6μg/m³
OzoneGood
44μg/m³
UV IndexLow
0.0

What's driving it

PM × Wind × Precip

PM2.5 at 4.8 µg/m³ (AQI 27) with a 0.69 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in stagnant air, not road dust.

PM2.5/PM10
0.69
Wind
light
Recent rain
0h in last 6h
Pattern
stagnant smoke

Trends

Seven days of AQI and PM2.5.

Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).

7-DAY AQI TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³300
Seattle, WA
Sky cover · visibility · 24h
Cloud cover
33%
MOSTLY CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
42.6mi
UNLIMITED
81 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
06:15 UTC · Seattle, WA · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
06:15 UTC · Seattle, WA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Seattle, WA
Satellite · infrared · animated
Seattle, WA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Seattle, WA
Almanac · Saturday, August 1
Red sky at night, sailor's delight.
Civil dawn
5:11 AM
Sunrise
10:47 PM
Daylight
14h 56m
Sunset
1:43 PM
Civil dusk
9:21 PM
Planting note
Sow fall peas. Start kale and collard seedlings for fall.
Seattle, WA
The moon
Waning Gibbous
87% illuminated
Moonrise
9:56 PM
Moonset
10:22 AM
In sign
♓︎ Pisces
Seattle, WA
Microseason
Aug 1–5

August Arrives Dimmed

plant
Jan 158% of the yearDec 31

Read this microseason across nine climate regions →

Seattle at a glance

  • Today vs. normal: 4°F above the seasonal normal for this latitude
  • Last frost: June 1 (climatological average for this latitude)
  • Microseason: Aug 1–5
  • Planting window: Sow fall peas. Start kale and collard seedlings for fall.

ZIP codes: 98101, 98102, 98103, 98104, 98105, 98106, 98107, 98108 +30 more

16-Day Forecast — Seattle

  1. Sat72°59°22%
  2. Sun67°55°9%
  3. Mon75°51°1%
  4. Tue83°53°0%
  5. Wed87°56°0%
  6. Thu93°58°0%
  7. Fri91°58°0%
  8. Sat88°59°0%
  9. Sun82°55°0%
  10. Mon79°54°1%
  11. Tue76°54°3%
  12. Wed79°54°3%
  13. Thu81°55°0%
  14. Fri84°57°0%
  15. Sat82°57°6%
  16. Sun83°54°6%

Forecast data from Open-Meteo (CC BY 4.0).

Live wind & temperature near Seattle

Right now in the garden

Peak growing season

As of August 2, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

Sun & seasons in Seattle

Seattle sits in King County, where the year’s longest day runs 15h 59m of daylight and its shortest just 8h 25m — a swing of +7h 34m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.

Spokane, the state’s largest city, lies about 228 miles to the E. The nearest town Seattle tracks is Bellevue, roughly 8 miles to the ESE.

Air quality in Seattle’s county has held roughly steady since 2020; its cleanest year on record was 2024 (median AQI 41). See the full air-quality history for Seattle.

January 1–5: The Year's Deep Silence.January 6–10: The First Pressure Shift.January 11–15: The Lengthening.January 16–20: The Crows Begin.January 21–25: Skunk Cabbage Wakens.January 26–31: The Fog Deepens.February 1–5: The Sap Stirs.February 6–10: East Wind Weakens the Marine Layer.February 11–15: Thrush Song at First Light.February 16–20: The Salmon Remember.February 21–25: The Soil Awakens.February 26–28: Mist Begins to Linger.March 1–5: The Buds Emerge.March 6–10: The Small Lives Stir.March 11–15: The Spring Salmon Peak.March 16–20: Alder Catkins Dust the Air.March 21–25: Equinox Fog Clears.March 26–31: Salmonberry First Bloom.April 1–5: Thunder Rolls Down the Valleys.April 6–10: Swallows Arrive at the Bridges.April 11–15: Geese Turn Their Faces North.April 16–20: Rainbows Arc Above the Cascades.April 21–25: Reeds Rise from the Wetlands.April 26–30: Frost Releases the Garden.May 1–5: Warblers Flood the Canopy.May 6–10: Frogs Sing at Twilight.May 11–15: Earthworms Rise to Feed the Forest.May 16–20: Shoots and Sprouts Rise in Ranks.May 21–25: Silkworm Days—Full Canopy.May 26–31: Safflower Days—Late May Blooms.June 1–5: Rufous Hummingbirds Arrive.June 6–10: Oceanspray Towers.June 11–15: Solstice Light Crests.June 16–20: Thimbleberry Sweetens.June 21–25: Summer Solstice Stillness.June 26–30: Dry Pattern Deepens.July 1–5: Fireweed Ignites.July 6–10: Peak Hummingbird Wars.July 11–15: Red Huckleberry Ripens.July 16–20: Smoke Season Beckons.July 21–25: Dog Days Hold.July 26–31: Smoke Deepens.August 1–5: August Arrives Dimmed.August 6–10: Cool Wind Hints Return.August 11–15: Cicadas Crescendo.August 16–20: Marine layer deepens.August 21–25: First sweater morning.August 26–31: August snap arrives.September 1–5: Rivers quicken with silver.September 6–10: Dew settles thick.September 11–15: Raptors funnel through passes.September 16–20: Equinox—darkness gains.September 21–25: Fog locks the valleys.September 26–30: Geese stage southward.October 1–5: Mushroom flush deepens.October 6–10: Maples ignite orange.October 11–15: Frost's first mark.October 16–20: Oaks turn russet.October 21–25: First killing frost.October 26–31: Atmospheric rivers arrive.November 1–5: Maple and ivy turn to amber.November 6–10: Last leaves cling in quiet rain.November 11–15: First frost finds the lowlands.November 16–20: Bare branches open the winter sky.November 21–25: Heavy rains mask the stars.November 26–30: North wind clears the gloom.December 1–5: Darkness settles early.December 6–10: Winter cold locks the sky.December 11–15: The days reach their minimum.December 16–20: Ice forms at the margins.December 21–25: The sun turns at solstice.December 26–31: Year's end in silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · August 1–5

August Arrives Dimmed

Smoke persists. Nights fall noticeably earlier—sunset shifts 3 minutes earlier than June's solstice. Resinous fir and cedar scent hangs thick.

Day 214 of 365 · Wedge 43 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
March——
April——
Maylettuce, peas, spinach, radisheslettuce, peas, radishes
Junelettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
Augusttomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
October—winter squash, tomatoes (last)
November——
December——

A year in weather

August is Seattle's warmest stretch (~67°F) and January its coldest (~38°F); precipitation crests in November at 7.9 inches and ebbs in July to 0.5 inches.

MonthMean tempPrecipRainy days
January38°7.5″23
February40°5.5″20
March43°5.6″23
April48°4.1″20
May55°3.1″19
June60°2.4″16
July66°0.5″7
August67°0.9″6
September60°2.4″12
October51°6.2″19
November44°7.9″23
December38°7.5″24

Regional context

In Seattle, NOAA NCEI 1991-2020 normals put January near 38°F and July near 66°F — a 28°F seasonal arc — with about 53.6 inches of precipitation over 211 rainy or snowy days.

Cool-season fronts carry Seattle's rain: November logs 7.9 inches on 22.6 days, against July's 0.5 inches on 6.8 — winter does the heavy lifting in Seattle. That cool-season-wet pattern aligns Seattle with places like Medina, WA, Hunts Point, WA and Clyde Hill, WA.

Seattle reaches its last hard frost near late-May; that is the cue for peas, lettuce, spinach, and radishes. Tomatoes and peppers do best set out two weeks later in Seattle, once nights clear the mid-40s°F. Frost returns to Seattle near early-October, ending the tender-crop season. Seattle's low ground holds frost later into spring than Seattle's benches, which run 3-5 days ahead.

Similar climates: Medina, WA, Hunts Point, WA, Clyde Hill, WA, Yarrow Point, WA, Mercer Island, WA.

Naturalist notes

Pacific madrone trees begin their distinctive bark-shedding process in late May, revealing smooth reddish underskin as temperatures warm.

American robins start their second nesting cycle around mid-May, taking advantage of longer daylight hours and abundant earthworms in Seattle's moist soils.

Frequently asked

When does it freeze in Seattle?
Frost typically leaves Seattle by mid-May and returns to Seattle near mid-October.
What is the rainy season in Seattle?
Seattle sees its heaviest rain in November (around 7.9 inches), part of roughly 54 inches a year.
What is the warmest month in Seattle?
August is Seattle's warmest month, averaging about 67°F.
What is the coldest month in Seattle?
Seattle bottoms out in January, with a mean near 38°F.
When can I start a vegetable garden in Seattle?
Seattle's last frost (mid-May) cues hardy greens; in Seattle, hold heat-lovers two weeks past.
How many rainy days does Seattle get?
Seattle records around 211 days of measurable precipitation annually.
What hardiness zone is Seattle?
Seattle sits in the USDA zone set by January lows near 38°F; the USDA ZIP tool gives the band.
What is the 10-day forecast for Seattle?
Seattle's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Seattle?
See this week's day-by-day rain chances for Seattle in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Seattle?
Current conditions for Seattle and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Seattle forecast updated?
The Seattle forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Seattle?
Today's sunrise and sunset times for Seattle are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for Seattle?
The next few days in Seattle's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Seattle, Washington occupies a warm-summer Mediterranean zone, with January means near 38°F and July around 66°F — a 28°F swing.

Yearly precipitation in Seattle totals around 54 inches, spread over about 211 days of rain or snow.

The 28°F gap between Seattle's summer and winter, at 47.6°N, shapes Seattle's frost calendar.

All cities in Washington →

ZIP codes in Seattle

  • 98109
  • 98108
  • 98105
  • 98104
  • 98107
  • 98106
  • 98101
  • 98103
  • 98102
  • 98154
  • 98122
  • 98121
  • 98126
  • 98125
  • 98178
  • 98174
  • 98177
  • 98144
  • 98146
  • 98195
  • 98199
  • 98118
  • 98119
  • 98116
  • 98117
  • 98115
  • 98112
  • 98164
  • 98134
  • 98136
  • 98133
  • 98111
  • 98113
  • 98114
  • 98124
  • 98127
  • 98129
  • 98139
  • 98141
  • 98145
  • 98161
  • 98165
  • 98170
  • 98175
  • 98181
  • 98185
  • 98191
  • 98194

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.