Today
Expect rain. Daytime high +55°, overnight low +46°. Wind gusts reach 8 mph. Precipitation chance reaches 92%.
Weather in Sammamish
United States · Washington · 47.6418, -122.0804
Today Now 2:42 AM
+55° Mostly cloudy
Hourly forecast
Today10/17
Temperature°F
Cloudiness
Precipitation
Windmph
Wind gusts
Humidity
PressureinHg
Dew point°F
Visibilitymi
UV index
Forecast in words
Tomorrow
Tomorrow high +57° and partly cloudy, nighttime low +39°, no noticeable change.
Week
Seven days ahead fall within +37°…+63°. Peak warmth: Wed, +63°. Nighttime weekly low: +37° (Sat). Rain on Sat, Thu, Fri. Clear days — 3. Colder closer to the weekend.
Week vs norm
- Today 10/17 +55° −4° usually +60°
- Tomorrow 10/18 +57° −2° usually +59°
- Mon 10/19 +57° −2° usually +59°
- Tue 10/20 +57° −2° usually +59°
- Wed 10/21 +63° +4° usually +58°
- Thu 10/22 +57° as usual usually +58°
- Fri 10/23 +46° −11° usually +58°
- Sat 10/24 +39° −18° usually +57°
Difference between forecast daytime high and the 1991–2020 norm for this date.
This day, October 17
Today is cooler than usual for this date.
- Heat record +78° 2022
- Cold record +30° 2010
- Most precipitation 1.9 in 2009
- Strongest gust 42 mph 2017
Records for this calendar date, 1991-2024, ERA5 reanalysis.
Climate in Sammamish
Today is about 4° colder than usual for October.
| Month | Daytime / Nighttime | Average | Precipitation in |
|---|---|---|---|
| Jan | +45° / +35° | +39° | 7.8 |
| Feb | +48° / +35° | +40° | 5.6 |
| Mar | +53° / +37° | +43° | 6.3 |
| Apr | +58° / +40° | +48° | 5.3 |
| May | +65° / +46° | +54° | 4.0 |
| Jun | +70° / +51° | +59° | 3.3 |
| Jul | +77° / +56° | +65° | 1.4 |
| Aug | +78° / +56° | +66° | 1.8 |
| Sep | +72° / +51° | +60° | 3.2 |
| Oct | +60° / +45° | +51° | 6.3 |
| Nov | +50° / +39° | +43° | 8.5 |
| Dec | +44° / +35° | +39° | 8.0 |
Climatic normals for 1991–2025 years from ERA5-Land reanalysis.
Astronomical data
Sunrise / sunset
7:30 AM | 6:15 PM
Moon
2:42 PM | 10:47 PM
Moon phase
Waxing crescent 42%
Next solar eclipse
Calculating for this city…