Current Conditions

Rancho Penasquitos, California

76°F25°C
Clear

Wind

WSW 6 mph9 km/h

Humidity

49%

Cloud Cover

3%

As of Wednesday, September 2, 2026 at 10:39 AM PDT

Today's Outlook

Day

Mostly clear and warm, with a high of 79°F26°C and morning low of 68°F20°C. Breezy from the W at 7 to 10 mph11 to 16 km/h.

Night

Mostly clear, with a low around 64°F18°C. Light wind from the WNW around 3 mph5 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ClearHigh 79°F26°CLow 64°F18°CPrecip 0 in0 mmCloud 7%Wind W 5 mph8 km/hWednesday: Mostly clear and warm, with a high of 79°F26°C and morning low of 68°F20°C. Breezy from the W at 7 to 10 mph11 to 16 km/h. Wednesday Night: Mostly clear, with a low around 64°F18°C. Light wind from the WNW around 3 mph5 km/h.
ClearHigh 78°F25°CLow 63°F17°CPrecip 0 in0 mmCloud 18%Wind WSW 5 mph8 km/hThursday: Mostly clear and warm, with a high of 78°F25°C and morning low of 68°F20°C. Breezy from the WSW at 6 to 10 mph10 to 15 km/h. Thursday Night: Mostly clear, with a low around 63°F17°C. Light wind from the W around 3 mph5 km/h.
ClearHigh 79°F26°CLow 64°F18°CPrecip 0 in0 mmCloud 18%Wind W 4 mph7 km/hFriday: Mostly clear and warm, with a high of 79°F26°C and morning low of 67°F20°C. Breezy from the WSW at 6 to 9 mph9 to 14 km/h. Friday Night: Partly cloudy, with a low around 64°F18°C. Light wind from the W around 3 mph4 km/h.
ClearHigh 83°F28°CLow 66°F19°CPrecip 0.01 in0.2 mm9%Cloud 20%Wind W 4 mph7 km/hSaturday: Mostly clear and warm, with a high of 83°F28°C and morning low of 70°F21°C. Breezy from the W at 5 to 8 mph9 to 12 km/h. Saturday Night: Mostly clear, with a low around 66°F19°C. Light wind from the NW around 3 mph5 km/h.
DrizzleHigh 82°F28°CLow 71°F22°CPrecip 0.06 in1.4 mm23%Cloud 38%Wind WNW 5 mph8 km/hSunday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 73°F23°C. Breezy from the WNW at 6 to 9 mph10 to 14 km/h. 23% chance of drizzle throughout the day. Sunday Night: Partly cloudy, with a low around 71°F22°C. Light wind from the NW around 4 mph6 km/h. 13% chance of drizzle before dawn.
ClearHigh 83°F28°CLow 68°F20°CPrecip 0 in0 mmCloud 16%Wind W 4 mph7 km/hMonday: Mostly clear and warm, with a high of 83°F28°C and morning low of 72°F22°C. Breezy from the W at 6 to 9 mph10 to 14 km/h. Monday Night: Mostly clear, with a low around 68°F20°C. Light wind from the NW around 3 mph5 km/h.
ClearHigh 84°F29°CLow 67°F19°CPrecip 0 in0.1 mm3%Cloud 19%Wind W 5 mph7 km/hTuesday: Mostly clear and warm, with a high of 84°F29°C and morning low of 70°F21°C. Breezy from the W at 6 to 9 mph10 to 15 km/h. Tuesday Night: Mostly clear, with a low around 67°F19°C. Light wind from the WNW around 3 mph5 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 279°F26°C64°F18°C0 in0 mm· —7%ClearW 5 mph8 km/h
ThursdaySep 378°F25°C63°F17°C0 in0 mm· —18%ClearWSW 5 mph8 km/h
FridaySep 479°F26°C64°F18°C0 in0 mm· —18%ClearW 4 mph7 km/h
SaturdaySep 583°F28°C66°F19°C0.01 in0.2 mm· 9%20%ClearW 4 mph7 km/h
SundaySep 682°F28°C71°F22°C0.06 in1.4 mm· 23%38%DrizzleWNW 5 mph8 km/h
MondaySep 783°F28°C68°F20°C0 in0 mm· —16%ClearW 4 mph7 km/h
TuesdaySep 884°F29°C67°F19°C0 in0.1 mm· 3%19%ClearW 5 mph7 km/h
WednesdaySep 983°F28°C68°F20°C0.01 in0.3 mm· 6%22%ClearW 5 mph7 km/h
ThursdaySep 1082°F28°C68°F20°C0.02 in0.4 mm· 4%25%ClearW 4 mph7 km/h
FridaySep 1182°F28°C68°F20°C0.04 in1 mm· 7%38%ClearWSW 4 mph7 km/h
SaturdaySep 1280°F27°C69°F21°C0.17 in4.4 mm· 14%47%ShowersWSW 5 mph8 km/h
SundaySep 1380°F27°C69°F20°C0.06 in1.6 mm· 12%46%DrizzleW 5 mph8 km/h
MondaySep 1480°F27°C68°F20°C0.07 in1.7 mm· 9%40%Partly CloudyWSW 5 mph8 km/h
TuesdaySep 1581°F27°C68°F20°C0.04 in1 mm· 8%34%ClearW 5 mph8 km/h
WednesdaySep 1681°F27°C68°F20°C0 in0.1 mm· 4%32%ClearW 5 mph8 km/h

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: 32.9595°N, 117.1153°W·Elevation: 183m·Timezone: America/Los_Angeles·Population: 60,000