Current Conditions

Sunnyvale, California

72°F22°C
Clear

Wind

WNW 8 mph13 km/h

Humidity

54%

Cloud Cover

5%

As of Thursday, July 23, 2026 at 1:59 PM PDT

Today's Outlook

Day

Mostly clear and warm, with a high of 73°F23°C and morning low of 67°F20°C. Breezy from the WNW at 8 mph12 km/h.

Night

Mostly clear, with a low around 61°F16°C. Light wind from the WNW around 5 mph8 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ThursdayJul 23ClearHigh 73°F23°CLow 61°F16°CPrecip 0 in0 mmCloud 11%Wind WNW 7 mph11 km/hThursday: Mostly clear and warm, with a high of 73°F23°C and morning low of 67°F20°C. Breezy from the WNW at 8 mph12 km/h. Thursday Night: Mostly clear, with a low around 61°F16°C. Light wind from the WNW around 5 mph8 km/h.
FridayJul 24ClearHigh 74°F23°CLow 57°F14°CPrecip 0 in0 mmCloud 28%Wind WNW 6 mph9 km/hFriday: Mostly clear and warm, with a high of 74°F23°C and morning low of 60°F15°C. Breezy from the WNW at 7 to 9 mph11 to 14 km/h. Friday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the WNW around 4 mph7 km/h.
SaturdayJul 25ClearHigh 75°F24°CLow 57°F14°CPrecip 0 in0 mmCloud 28%Wind WNW 6 mph9 km/hSaturday: Mostly clear and warm, with a high of 75°F24°C and morning low of 61°F16°C. Breezy from the WNW at 7 to 9 mph11 to 14 km/h. Saturday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the WNW around 4 mph7 km/h.
SundayJul 26ClearHigh 74°F23°CLow 58°F15°CPrecip 0 in0 mmCloud 31%Wind WNW 5 mph8 km/hSunday: Partly cloudy and warm, with a high of 74°F23°C and morning low of 61°F16°C. Breezy from the WNW at 6 to 8 mph10 to 13 km/h. Sunday Night: Partly cloudy, with a low around 58°F15°C. Light wind from the WNW around 4 mph7 km/h.
MondayJul 27ClearHigh 75°F24°CLow 57°F14°CPrecip 0 in0 mmCloud 25%Wind WNW 5 mph8 km/hMonday: Mostly clear and warm, with a high of 75°F24°C and morning low of 60°F16°C. Breezy from the WNW at 6 to 8 mph10 to 13 km/h. Monday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the WNW around 4 mph7 km/h.
TuesdayJul 28ClearHigh 78°F25°CLow 57°F14°CPrecip 0 in0 mmCloud 17%Wind W 5 mph8 km/hTuesday: Mostly clear and warm, with a high of 78°F25°C and morning low of 62°F17°C. Breezy from the W at 6 to 8 mph10 to 12 km/h. Tuesday Night: Mostly clear, with a low around 57°F14°C. Light wind from the W around 4 mph6 km/h.
WednesdayJul 29ClearHigh 79°F26°CLow 59°F15°CPrecip 0 in0 mmCloud 19%Wind W 4 mph7 km/hWednesday: Mostly clear and warm, with a high of 79°F26°C and morning low of 63°F17°C. Breezy from the W at 5 to 7 mph8 to 12 km/h. Wednesday Night: Mostly clear, with a low around 59°F15°C. Light wind from the W around 4 mph6 km/h.

15-Day Forecast

Day High (°F) Low (°F) Precip (mm) Cloud Cover (%) Condition Wind (mph)

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: 37.3688°N, 122.0363°W·Elevation: 39m·Timezone: America/Los_Angeles·Population: 155,805