Today
Clear throughout the day, high +90°, low +64°. Wind up to 6 mph. No rain expected.
Weather in Sunnyvale
United States · California · 37.3688, -122.0364
Today Now 12:46 AM
+66° Clear
Hourly forecast
Today10/17
Temperature°F
Cloudiness
Precipitation
Windmph
Wind gusts
Humidity
PressureinHg
Dew point°F
Visibilitymi
UV index
Forecast in words
Tomorrow
Tomorrow clear, high +77°, low +52°, 13° colder.
Week
Seven days ahead fall within +48°…+90°. Weekly maximum — +90° (Sat). Coldest night — Fri, around +48°. Precipitation expected: Wed, Thu. Clear days — 4. Colder closer to the weekend.
Week vs norm
- Today 10/17 +90° +14° usually +75°
- Tomorrow 10/18 +77° +2° usually +75°
- Mon 10/19 +66° −9° usually +75°
- Tue 10/20 +66° −8° usually +74°
- Wed 10/21 +70° −4° usually +74°
- Thu 10/22 +59° −15° usually +74°
- Fri 10/23 +66° −7° usually +73°
- Sat 10/24 +52° −21° usually +73°
Difference between forecast daytime high and the 1991–2020 norm for this date.
This day, October 17
Today is one of the warmest such days in three decades.
- Heat record +92° 2020
- Cold record +46° 1998
- Most precipitation 0.3 in 2016
- Strongest gust 35 mph 2019
Records for this calendar date, 1991-2024, ERA5 reanalysis.
Climate in Sunnyvale
Today is about 13° warmer than usual for October.
| Month | Daytime / Nighttime | Average | Precipitation in |
|---|---|---|---|
| Jan | +59° / +44° | +50° | 4.2 |
| Feb | +61° / +45° | +52° | 4.4 |
| Mar | +64° / +47° | +54° | 3.5 |
| Apr | +67° / +49° | +56° | 1.6 |
| May | +71° / +52° | +60° | 0.8 |
| Jun | +77° / +56° | +65° | 0.2 |
| Jul | +81° / +58° | +68° | 0.0 |
| Aug | +82° / +59° | +68° | 0.1 |
| Sep | +82° / +60° | +68° | 0.1 |
| Oct | +76° / +56° | +64° | 1.1 |
| Nov | +65° / +49° | +56° | 2.1 |
| Dec | +58° / +45° | +50° | 4.1 |
Climatic normals for 1991–2025 years from ERA5-Land reanalysis.
Astronomical data
Sunrise / sunset
7:18 AM | 6:27 PM
Moon
2:00 PM | 11:28 PM
Moon phase
Waxing crescent 42%
Next solar eclipse
Calculating for this city…