Current Conditions

Mountlake Terrace, Washington

70°F21°C
Clear

Wind

NNW 7 mph12 km/h

Humidity

56%

Cloud Cover

5%

As of Tuesday, September 8, 2026 at 3:23 PM PDT

Today's Outlook

Day

Mostly clear and warm, with a high of 71°F22°C and morning low of 64°F18°C. Breezy from the NNW at 7 mph11 km/h.

Night

Mostly clear, with a low around 59°F15°C. Light wind from the N around 5 mph8 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ClearHigh 71°F22°CLow 59°F15°CPrecip 0 in0 mmCloud 12%Wind NNW 6 mph10 km/hTuesday: Mostly clear and warm, with a high of 71°F22°C and morning low of 64°F18°C. Breezy from the NNW at 7 mph11 km/h. Tuesday Night: Mostly clear, with a low around 59°F15°C. Light wind from the N around 5 mph8 km/h.
Partly CloudyHigh 74°F23°CLow 54°F12°CPrecip 0 in0 mmCloud 71%Wind N 4 mph7 km/hWednesday: Overcast and warm, with a high of 74°F23°C and morning low of 56°F13°C. Light wind from the N around 5 mph7 km/h. Wednesday Night: Mostly cloudy, with a low around 54°F12°C. Light wind from the NNE around 4 mph6 km/h.
DrizzleHigh 69°F20°CLow 59°F15°CPrecip 0.04 in1.1 mm39%Cloud 80%Wind N 3 mph5 km/hThursday: Overcast and warm, with a high of 69°F20°C and morning low of 60°F16°C. Light wind from the N around 3 mph5 km/h. 27% chance of drizzle in the afternoon. Thursday Night: Mostly cloudy, with a low around 59°F15°C. Light wind from the NE around 3 mph4 km/h. 39% chance of drizzle in the evening.
DrizzleHigh 66°F19°CLow 57°F14°CPrecip 0.02 in0.6 mm35%Cloud 92%Wind S 5 mph7 km/hFriday: Overcast and mild, with a high of 66°F19°C and morning low of 57°F14°C. Light wind from the S around 5 mph8 km/h. 11% chance of drizzle. Friday Night: Overcast, with a low around 57°F14°C. Light wind from the SSE around 4 mph7 km/h. 35% chance of drizzle overnight.
ShowersHigh 66°F19°CLow 57°F14°CPrecip 0.1 in2.5 mm34%Cloud 69%Wind SW 4 mph7 km/hSaturday: Mostly cloudy and mild, with a high of 66°F19°C and morning low of 57°F14°C. Light wind from the WNW around 4 mph7 km/h. 33% chance of drizzle throughout the day. Saturday Night: Mostly cloudy, with a low around 57°F14°C. Light wind from the SSE around 4 mph7 km/h. 34% chance of showers in the evening.
ShowersHigh 66°F19°CLow 57°F14°CPrecip 0.21 in5.4 mm46%Cloud 66%Wind S 6 mph10 km/hSunday: Mostly cloudy and mild, with a high of 66°F19°C and morning low of 57°F14°C. Breezy from the S at 7 mph11 km/h. 46% chance of light rain throughout the day. Sunday Night: Mostly cloudy, with a low around 57°F14°C. Light wind from the SSE around 6 mph10 km/h. 45% chance of showers throughout the night.
DrizzleHigh 66°F19°CLow 57°F14°CPrecip 0.05 in1.2 mm20%Cloud 58%Wind SSE 5 mph7 km/hMonday: Mostly cloudy and mild, with a high of 66°F19°C and morning low of 57°F14°C. Light wind from the S around 4 mph7 km/h. 20% chance of drizzle throughout the day. Monday Night: Mostly cloudy, with a low around 57°F14°C. Light wind from the SE around 5 mph7 km/h. 16% chance of drizzle throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
TuesdaySep 871°F22°C59°F15°C0 in0 mm· —12%ClearNNW 6 mph10 km/h
WednesdaySep 974°F23°C54°F12°C0 in0 mm· —71%Partly CloudyN 4 mph7 km/h
ThursdaySep 1069°F20°C59°F15°C0.04 in1.1 mm· 39%80%DrizzleN 3 mph5 km/h
FridaySep 1166°F19°C57°F14°C0.02 in0.6 mm· 35%92%DrizzleS 5 mph7 km/h
SaturdaySep 1266°F19°C57°F14°C0.1 in2.5 mm· 34%69%ShowersSW 4 mph7 km/h
SundaySep 1366°F19°C57°F14°C0.21 in5.4 mm· 46%66%ShowersS 6 mph10 km/h
MondaySep 1466°F19°C57°F14°C0.05 in1.2 mm· 20%58%DrizzleSSE 5 mph7 km/h
TuesdaySep 1566°F19°C56°F13°C0.08 in2.1 mm· 27%52%DrizzleN 4 mph7 km/h
WednesdaySep 1668°F20°C56°F13°C0.09 in2.2 mm· 29%33%DrizzleNNW 5 mph8 km/h
ThursdaySep 1771°F22°C53°F12°C0.01 in0.3 mm· 8%16%ClearN 5 mph7 km/h
FridaySep 1871°F22°C54°F12°C0.01 in0.2 mm· 3%18%ClearN 4 mph7 km/h
SaturdaySep 1971°F22°C55°F13°C0.02 in0.5 mm· 8%32%ClearN 4 mph7 km/h
SundaySep 2070°F21°C56°F13°C0.02 in0.4 mm· 6%41%Partly CloudyNNE 5 mph7 km/h
MondaySep 2170°F21°C57°F14°C0.07 in1.7 mm· 15%45%ShowersNNE 5 mph8 km/h
TuesdaySep 2269°F21°C57°F14°C0.05 in1.2 mm· 14%46%DrizzleN 5 mph8 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 47.7882°N, 122.3087°W·Elevation: 140m·Timezone: America/Los_Angeles·Population: 20,989