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Marysville, Washington Weather

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

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

Marysville, WA
Sunday, August 2 at 7:59 AM
60
°
Overcast
Feels like
61°
Humidity
82%
Wind
1 mph
Sunrise
10:46 PM
Sunset
1:43 PM
Marysville, WA
Hour by hour · 24h
24-Hour ForecastMarysville, WA: 24-hour forecast. Temperatures range from 51 to 70 degrees Fahrenheit.
L 51°H 70°
Marysville, WA
7-day forecast
  1. Today
    Aug 2
    Overcast
    27%
    —
    70°57°—
  2. Monday
    Aug 3
    Mostly Clear
    —
    —
    79°51°+9°
  3. Tuesday
    Aug 4
    Clear
    —
    —
    81°52°+2°
  4. Wednesday
    Aug 5
    Clear
    —
    —
    84°54°+3°
  5. Thursday
    Aug 6
    Overcast
    —
    —
    88°56°+4°
  6. Friday
    Aug 7
    Overcast
    —
    —
    84°56°-4°
  7. Saturday
    Aug 8
    Partly Cloudy
    —
    —
    80°53°-4°
Marysville, WA
Next 24 hours · Cool now
46°60°74°12p6p12a6anow 59°high 70°low 51°PRECIP %
Marysville, WA
Anemometer · 24h winds · from true
NESW
From · True
WNW
297° · veering 132°
Direction
WNW
297°
Sustained
1
mph
Gust
1
mph
Peak 24h
17
avg 4 mph
Beaufort · 1 · LIGHT AIR
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 4 mph · pk 17 mph @ 8:00a
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 163SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Marysville, WA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1020.6
+0.2 mb in 3h · steady · 30.14 inHg
Now
1020.6
mb
3h
+0.2
mb
12h
+1.3
mb
24h
+4.5
mb
Regime · FAIR
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1016–1021
1010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY-21h-18h-15h-12h-9h-6h-3h-24hNOW1020.31015.61020.1
Fair, steady air — a quiet anticyclone holds the sky.
Marysville, WA
Air quality
29
AQI
Good
→-1 in 6h

AQI 29 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 5.0 µg/m³ (AQI 28) with a 0.74 fine-to-coarse ratio and 1 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
5.0μg/m³
PM 10Good
7μg/m³
NO₂Good
6μg/m³
OzoneGood
39μg/m³
UV IndexLow
0.1

What's driving it

PM × Wind × Precip

PM2.5 at 5.0 µg/m³ (AQI 28) with a 0.74 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in stagnant air, not road dust.

PM2.5/PM10
0.74
Wind
calm
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
Marysville, WA
Sky cover · visibility · 24h
Cloud cover
99%
OVERCAST
100%0%−24h−18h−12h−6hnow
Visibility
34.0mi
UNLIMITED
52 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
14:59 UTC · Marysville, 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
14:59 UTC · Marysville, WA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Marysville, WA
Satellite · infrared · animated
Marysville, WA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Marysville, WA
Almanac · Sunday, August 2
Red sky at night, sailor's delight.
Civil dawn
5:10 AM
Sunrise
10:46 PM
Daylight
14h 57m
Sunset
1:43 PM
Civil dusk
9:21 PM
Planting note
Sow fall peas. Start kale and collard seedlings for fall.
Marysville, WA
The moon
Waning Gibbous
84% illuminated
Moonrise
9:55 PM
Moonset
10:21 AM
In sign
♓︎ Pisces
Marysville, WA
Microseason
Aug 1–5

August Arrives Dimmed

plant
Jan 159% of the yearDec 31

Read this microseason across nine climate regions →

Marysville at a glance

  • Today vs. normal: 6°F above the seasonal normal for this latitude
  • Last frost: June 3 (climatological average for this latitude)
  • Microseason: Aug 1–5
  • Planting window: Sow fall peas. Start kale and collard seedlings for fall.

ZIP codes: 98270, 98271

16-Day Forecast — Marysville

  1. Sun70°57°27%
  2. Mon79°51°1%
  3. Tue81°52°0%
  4. Wed84°54°0%
  5. Thu88°56°0%
  6. Fri84°56°0%
  7. Sat80°53°0%
  8. Sun76°52°1%
  9. Mon78°50°1%
  10. Tue79°54°4%
  11. Wed82°56°2%
  12. Thu81°55°3%
  13. Fri82°56°3%
  14. Sat83°55°10%
  15. Sun78°53°10%
  16. Mon77°55°10%

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

Live wind & temperature near Marysville

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 Marysville

Marysville sits in Snohomish County, where the year’s longest day runs 16h 4m of daylight and its shortest just 8h 21m — a swing of +7h 42m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.

Seattle, the state’s largest city, lies about 33 miles to the SSW. The nearest town Marysville tracks is Seattle, roughly 33 miles to the SSW.

Air quality in Marysville’s county has held roughly steady since 2020; its cleanest year on record was 2021 (median AQI 35). See the full air-quality history for Marysville.

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

Marysville's warmest month is August (~65°F mean) and its coldest is December (~40°F). Rainfall peaks in November (5.8 inches) and bottoms out in July (1.0 inches).

MonthMean tempPrecipRainy days
January41°5.0″17
February43°3.7″12
March46°4.1″14
April51°3.4″11
May56°2.7″9
June61°2.3″8
July65°1.0″3
August65°1.1″4
September60°2.3″8
October52°3.7″12
November45°5.8″19
December40°5.0″17

Regional context

Marysville swings from 41°F in January to 65°F in July (24°F) per NOAA NCEI 1991-2020 normals; precipitation in Marysville runs about 40.3 inches on roughly 134 measurable days.

Cool-season fronts carry Marysville's rain: November logs 5.8 inches on 19.0 days, against July's 1.0 inches on 3.0 — winter does the heavy lifting in Marysville. That cool-season-wet pattern aligns Marysville with places like Lake Cassidy, WA, Sisco Heights, WA and Lochsloy, WA.

Around late-May, Marysville sheds its freezing nights — peas, lettuce, spinach, and radishes go into Marysville's beds. Heat-demanding starts go out a fortnight on in Marysville, after the soil warms and cold snaps clear. Frost returns to Marysville near early-October, ending the tender-crop season. A creek-bottom lot in Marysville can lag Marysville's last frost 7-10 days behind a south slope.

Similar climates: Lake Cassidy, WA, Sisco Heights, WA, Lochsloy, WA, Lake Stevens, WA, Arlington, WA.

Naturalist notes

Pacific rhododendrons reach peak bloom across the region during late May, their pink clusters emerging as spring temperatures stabilize.

American robins begin their second nesting cycle in late May, with pairs gathering fresh materials for new broods.

Frequently asked

When does it freeze in Marysville?
Frost typically leaves Marysville by mid-May and returns to Marysville near mid-October.
What is the rainy season in Marysville?
Rainfall in Marysville peaks in November near 5.8 inches, out of about 40 inches annually.
What is the warmest month in Marysville?
August is Marysville's warmest month, averaging about 65°F.
What is the coldest month in Marysville?
Marysville bottoms out in December, with a mean near 40°F.
When can I start a vegetable garden in Marysville?
Frost-hardy sowings begin at mid-May in Marysville; warm-season starts follow two weeks on.
How many rainy days does Marysville get?
Marysville records around 134 days of measurable precipitation annually.
What hardiness zone is Marysville?
Marysville's hardiness zone tracks its winter low; with December near 40°F, check the USDA ZIP map for the exact zone.
What is the 10-day forecast for Marysville?
Marysville'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 Marysville?
See this week's day-by-day rain chances for Marysville in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Marysville?
Current conditions for Marysville and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Marysville forecast updated?
The Marysville forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Marysville?
Today's sunrise and sunset times for Marysville 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 Marysville?
The next few days in Marysville's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Marysville's warm-summer Mediterranean climate in Washington pairs 41°F Januarys with 65°F Julys, 24°F apart across the seasons.

In a typical year Marysville records about 40 inches of precipitation on around 134 days.

At 48.1°N, Marysville's 24°F summer-to-winter swing sets when Marysville's gardens wake and when frost returns.

All cities in Washington →

Seattle, WA weather →

ZIP codes in Marysville

  • 98271
  • 98270

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.