Washington · NWS SEW office

Marysville, WA weather

It is 45°F and mostly cloudy at Arlington Municipal Airport as of Oct 28, 5:04 AM PDT. Overnight: Showers And Thunderstorms Likely, low near 38°F, 69% chance of precipitation. Forecast from the National Weather Service, issued Oct 27, 11:27 PM PDT.

Updated Oct 28, 5:20 AM PDT (snapshot)

Current conditions

Temperature

45°F

Mostly Cloudy

Wind

Calm

Humidity 100% · dew point 45°F

Pressure · visibility

29.87 inHg

Visibility 10 mi

Observed at Arlington Municipal Airport (KAWO), Oct 28, 5:04 AM PDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Marysville forecast zone right now.

Around the NWS SEW forecast area

No active alerts in zones served by the SEW office near Marysville.

From the alert snapshot of Oct 28, 2026, 8:14 AM EDT. Washington has 5 active alerts: see them all.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Marysville (local time)
TimeTempForecastPrecip. chanceWind
Wed 5 AM41°FShowers And Thunderstorms Likely69%SSE 3 mph
Wed 6 AM41°FShowers And Thunderstorms78%SSE 3 mph
Wed 7 AM40°FShowers And Thunderstorms76%SSE 5 mph
Wed 8 AM39°FShowers And Thunderstorms80%SSE 6 mph
Wed 9 AM40°FShowers And Thunderstorms Likely66%S 6 mph
Wed 10 AM43°FShowers And Thunderstorms Likely65%S 6 mph
Wed 11 AM45°FShowers And Thunderstorms Likely58%S 5 mph
Wed 12 PM48°FChance Showers And Thunderstorms51%S 5 mph
Wed 1 PM49°FChance Showers And Thunderstorms50%S 5 mph
Wed 2 PM50°FChance Showers And Thunderstorms53%S 5 mph
Wed 3 PM51°FShowers And Thunderstorms Likely61%S 3 mph
Wed 4 PM50°FShowers And Thunderstorms Likely68%SE 1 mph
Wed 5 PM49°FLight Rain82%E 3 mph
Wed 6 PM48°FLight Rain Likely71%SE 6 mph
Wed 7 PM44°FLight Rain Likely61%SE 6 mph
Wed 8 PM43°FChance Light Rain49%SE 7 mph
Wed 9 PM42°FChance Light Rain46%SE 8 mph
Wed 10 PM41°FChance Light Rain42%SE 8 mph
Wed 11 PM41°FChance Light Rain51%SE 8 mph
Thu 12 AM40°FChance Light Rain53%SE 8 mph
Thu 1 AM39°FLight Rain Likely61%SE 8 mph
Thu 2 AM39°FLight Rain Likely69%SE 7 mph
Thu 3 AM39°FLight Rain Likely72%ESE 7 mph
Thu 4 AM39°FLight Rain Likely60%ESE 7 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Marysville can differ.

7-day forecast

Overnight

Low 38°F

Showers and thunderstorms likely. Mostly cloudy. Low around 38, with temperatures rising to around 41 overnight. South southeast wind around 3 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.

Wednesday

High 51°F·Low 33°F

Showers and thunderstorms before 5pm, then rain. Mostly cloudy. High near 51, with temperatures falling to around 49 in the afternoon. South southeast wind 1 to 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

Wednesday Night: Rain likely. Mostly cloudy. Low around 33, with temperatures rising to around 38 overnight. Southeast wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

Thursday

High 53°F·Low 32°F

A chance of rain before 11am, then a chance of rain and patchy fog between 11am and noon. Mostly cloudy, with a high near 53. South southeast wind 1 to 7 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Thursday Night: Rain likely after 11pm. Mostly cloudy, with a low around 32. East northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

Friday

High 51°F·Low 31°F

Rain likely. Mostly cloudy, with a high near 51. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

Friday Night: A slight chance of rain before 5am. Mostly cloudy, with a low around 31.

Saturday

High 53°F·Low 32°F

Partly sunny, with a high near 53.

Saturday Night: Mostly cloudy, with a low around 32.

Sunday

High 53°F·Low 33°F

Partly sunny, with a high near 53.

Sunday Night: Mostly cloudy, with a low around 33.

Monday

High 55°F·Low 36°F

Partly sunny, with a high near 55.

Monday Night: Mostly cloudy, with a low around 36.

Tuesday

High 56°F

Partly sunny, with a high near 56.

Nearby cities

Larger cities in the area

Other cities in Snohomish County

See every city we cover in Washington, or check all active alerts.

About this forecast

Forecast office
Marysville is served by the National Weather Service SEW forecast office, forecast zone WAZ312, county zone WAC061.
Location used
The Census Bureau's internal point for Marysville (48.0802, -122.1543), in Snohomish County. Population: 76,209 (2024 estimate), number 18 of the 58 Washington cities on this site.
Radar
Nearest NWS radar: KATX. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/48.0802,-122.1543 (forecast issued Oct 27, 11:27 PM PDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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