Current Conditions

City of Sammamish, Washington

60°F16°C
Drizzle

Wind

WNW 3 mph4 km/h

Humidity

75%

Cloud Cover

81%

As of Tuesday, September 22, 2026 at 11:48 AM PDT

Today's Outlook

Day

Mostly cloudy and mild, with a high of 66°F19°C and morning low of 60°F16°C. Light wind from the W around 3 mph5 km/h. 37% chance of drizzle around midday.

Night

Mostly cloudy, with a low around 56°F13°C. Light wind from the ESE around 3 mph5 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 66°F19°CLow 56°F13°CPrecip 0.02 in0.4 mm37%Cloud 78%Wind WSW 3 mph5 km/hTuesday: Mostly cloudy and mild, with a high of 66°F19°C and morning low of 60°F16°C. Light wind from the W around 3 mph5 km/h. 37% chance of drizzle around midday. Tuesday Night: Mostly cloudy, with a low around 56°F13°C. Light wind from the ESE around 3 mph5 km/h.
Partly CloudyHigh 66°F19°CLow 50°F10°CPrecip 0 in0.1 mm2%Cloud 79%Wind SSW 4 mph7 km/hWednesday: Overcast and mild, with a high of 66°F19°C and morning low of 51°F11°C. Light wind from the SW around 5 mph7 km/h. Dry air. Wednesday Night: Mostly cloudy, with a low around 50°F10°C. Light wind from the ESE around 4 mph6 km/h.
RainHigh 62°F16°CLow 49°F10°CPrecip 0.2 in5 mm93%Cloud 96%Wind N 3 mph5 km/hThursday: Overcast and mild, with a high of 62°F16°C and morning low of 50°F10°C. Light wind from the NNW around 4 mph6 km/h. 28% chance of drizzle in the afternoon. Dry air. Thursday Night: Overcast, with a low around 49°F10°C. Light wind from the NE around 3 mph5 km/h. 93% chance of rain in the evening.
RainHigh 57°F14°CLow 50°F10°CPrecip 0.67 in17 mm98%Cloud 76%Wind SSW 7 mph11 km/hFriday: Overcast and mild, with a high of 57°F14°C. Breezy from the SSW at 8 to 9 mph13 to 14 km/h. 98% chance of rain throughout the day. Friday Night: Mostly cloudy, with a low around 50°F10°C. Light wind from the S around 5 mph8 km/h. 95% chance of showers throughout the night.
DrizzleHigh 62°F16°CLow 46°F8°CPrecip 0.02 in0.5 mm26%Cloud 62%Wind NE 4 mph7 km/hSaturday: Mostly cloudy and mild, with a high of 62°F16°C and morning low of 47°F8°C. Light wind from the N around 4 mph6 km/h. Dry air. Saturday Night: Mostly cloudy, with a low around 46°F8°C. Light wind from the E around 4 mph7 km/h. 26% chance of drizzle overnight.
DrizzleHigh 62°F17°CLow 46°F8°CPrecip 0.04 in1 mm19%Cloud 55%Wind NE 4 mph6 km/hSunday: Mostly cloudy and mild, with a high of 62°F17°C and morning low of 48°F9°C. Light wind from the NW around 4 mph7 km/h. 19% chance of drizzle throughout the day. Dry air. Sunday Night: Mostly cloudy, with a low around 46°F8°C. Light wind from the E around 4 mph6 km/h. 18% chance of drizzle in the evening.
DrizzleHigh 63°F17°CLow 46°F8°CPrecip 0.08 in2.1 mm23%Cloud 70%Wind SSE 4 mph6 km/hMonday: Mostly cloudy and mild, with a high of 63°F17°C and morning low of 48°F9°C. Light wind from the SSW around 4 mph6 km/h. 23% chance of drizzle throughout the day. Dry air. Monday Night: Mostly cloudy, with a low around 46°F8°C. Light wind from the SE around 4 mph6 km/h. 19% chance of drizzle throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
TuesdaySep 2266°F19°C56°F13°C0.02 in0.4 mm· 37%78%DrizzleWSW 3 mph5 km/h
WednesdaySep 2366°F19°C50°F10°C0 in0.1 mm· 2%79%Partly CloudySSW 4 mph7 km/h
ThursdaySep 2462°F16°C49°F10°C0.2 in5 mm· 93%96%RainN 3 mph5 km/h
FridaySep 2557°F14°C50°F10°C0.67 in17 mm· 98%76%RainSSW 7 mph11 km/h
SaturdaySep 2662°F16°C46°F8°C0.02 in0.5 mm· 26%62%DrizzleNE 4 mph7 km/h
SundaySep 2762°F17°C46°F8°C0.04 in1 mm· 19%55%DrizzleNE 4 mph6 km/h
MondaySep 2863°F17°C46°F8°C0.08 in2.1 mm· 23%70%DrizzleSSE 4 mph6 km/h
TuesdaySep 2963°F17°C50°F10°C0.22 in5.7 mm· 43%78%Light RainSSE 5 mph8 km/h
WednesdaySep 3062°F17°C51°F11°C0.19 in4.8 mm· 44%72%Light RainS 5 mph8 km/h
ThursdayOct 161°F16°C50°F10°C0.14 in3.6 mm· 40%69%ShowersS 5 mph7 km/h
FridayOct 262°F17°C49°F9°C0.11 in2.7 mm· 31%61%DrizzleSE 4 mph7 km/h
SaturdayOct 365°F18°C48°F9°C0.1 in2.6 mm· 22%60%DrizzleE 4 mph7 km/h
SundayOct 466°F19°C49°F10°C0.08 in2 mm· 20%58%DrizzleESE 4 mph7 km/h
MondayOct 567°F20°C49°F10°C0.08 in2.1 mm· 16%49%DrizzleESE 5 mph7 km/h
TuesdayOct 668°F20°C51°F10°C0.09 in2.3 mm· 20%51%DrizzleSE 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: 47.6044°N, 122.0377°W·Elevation: 146m·Timezone: America/Los_Angeles·Population: 45,780