Sammamish, Washington Weather
Rufous Hummingbirds Arrive. Day 77 of spring. Read this microseason across nine climate regions →
Sammamish weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast11%—69°58°—
- ThursdayJun 4Overcast14%—65°52°-4°
- FridayJun 5Drizzle61%0.02″57°45°-8°
- SaturdayJun 6Drizzle91%0.06″54°43°-3°
- SundayJun 7Light Drizzle10%—64°41°+10°
- MondayJun 8Drizzle58%0.15″60°47°-4°
- TuesdayJun 9Light Rain54%0.40″53°48°-7°
AQI 26 (Good), driven by Ozone. AQI projected to ease from current levels toward 39 over the next 6 hours.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 7 AM.
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 7:08 AM
- Moonset
- 3:49 PM
- In sign
- ♑︎ Capricorn
Rufous Hummingbirds Arrive
Sammamish at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: June 1 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 4, 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.
SPC Convective Outlook
Storm Prediction Center — Sammamish
SPC has placed Sammamish in the General Thunderstorms category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.