Today
Expect mostly clear. Daytime high +72°, overnight low +54°. Wind gusts reach 4 mph. No precipitation expected.
Weather in Summit
United States · Washington · 47.1618, -122.3571
Today Now 3:02 PM
+72° Mostly clear
Hourly forecast
Today10/15
Temperature°F
Cloudiness
Precipitation
Windmph
Wind gusts
Humidity
PressureinHg
Dew point°F
Visibilitymi
UV index
Forecast in words
Tomorrow
Tomorrow partly cloudy: daytime +73°, nighttime +50° — almost like today.
Week
Seven days ahead fall within +41°…+73°. Weekly maximum — +73° (Fri). Nighttime weekly low: +41° (Sun). Precipitation expected: Sat, Thu. Colder closer to the weekend.
Week vs norm
- Today 10/15 +72° +13° usually +59°
- Tomorrow 10/16 +73° +15° usually +58°
- Sat 10/17 +63° +4° usually +58°
- Sun 10/18 +59° +1° usually +58°
- Mon 10/19 +57° as usual usually +58°
- Tue 10/20 +57° as usual usually +57°
- Wed 10/21 +61° +4° usually +57°
- Thu 10/22 +50° −7° usually +57°
Difference between forecast daytime high and the 1991–2020 norm for this date.
This day, October 15
Today is one of the warmest such days in three decades.
- Heat record +75° 2022
- Cold record +34° 1992
- Most precipitation 0.8 in 2016
- Strongest gust 46 mph 2016
Records for this calendar date, 1991-2024, ERA5 reanalysis.
Climate in Summit
Today is about 13° warmer than usual for October.
| Month | Daytime / Nighttime | Average | Precipitation in |
|---|---|---|---|
| Jan | +44° / +37° | +40° | 7.0 |
| Feb | +46° / +37° | +40° | 5.0 |
| Mar | +50° / +39° | +44° | 5.5 |
| Apr | +55° / +42° | +48° | 4.2 |
| May | +63° / +48° | +54° | 2.8 |
| Jun | +68° / +53° | +60° | 2.0 |
| Jul | +76° / +58° | +66° | 0.7 |
| Aug | +76° / +59° | +66° | 1.0 |
| Sep | +70° / +55° | +61° | 2.2 |
| Oct | +59° / +47° | +52° | 4.7 |
| Nov | +49° / +41° | +44° | 7.6 |
| Dec | +43° / +37° | +39° | 7.5 |
Climatic normals for 1991–2025 years from ERA5-Land reanalysis.
Astronomical data
Sunrise / sunset
7:28 AM | 6:21 PM
Moon
1:13 PM | 8:51 PM
Moon phase
Waxing crescent 24%
Next solar eclipse
Calculating for this city…