Current Conditions

Altadena, California

69°F21°C

Clear

Wind

NNW 4 mph7 km/h

Humidity

29%

Cloud Cover

As of Tuesday, October 13, 2026 at 4:42 PM PDT

Today's Outlook

Day

Mostly clear and warm, with a high of 69°F21°C and morning low of 63°F17°C. Light wind from the NE around 4 mph7 km/h. Dry air.

Night

Mostly clear, with a low around 55°F13°C. Light wind from the NNE around 4 mph7 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 69°F21°C	Low 55°F13°C	Precip 0 in0 mm—	Cloud 3%	Wind NNE 4 mph7 km/h	Tuesday: Mostly clear and warm, with a high of 69°F21°C and morning low of 63°F17°C. Light wind from the NE around 4 mph7 km/h. Dry air. Tuesday Night: Mostly clear, with a low around 55°F13°C. Light wind from the NNE around 4 mph7 km/h.
Clear	High 76°F25°C	Low 50°F10°C	Precip 0 in0 mm—	Cloud 0%	Wind NNE 5 mph8 km/h	Wednesday: Mostly clear and warm, with a high of 76°F25°C and morning low of 52°F11°C. Light wind from the NNE around 4 mph7 km/h. Dry air. Wednesday Night: Mostly clear, with a low around 50°F10°C. Light wind from the NNE around 5 mph8 km/h.
Clear	High 82°F28°C	Low 56°F13°C	Precip 0 in0 mm—	Cloud 0%	Wind NE 7 mph12 km/h	Thursday: Mostly clear and warm, with a high of 82°F28°C and morning low of 58°F14°C. Breezy from the NE at 8 mph13 km/h. Dry air. Thursday Night: Mostly clear, with a low around 56°F13°C. Breezy from the NE at 7 to 8 mph10 to 12 km/h.
Clear	High 86°F30°C	Low 67°F20°C	Precip 0 in0 mm—	Cloud 4%	Wind NE 9 mph14 km/h	Friday: Mostly clear and hot, with a high of 86°F30°C and morning low of 68°F20°C. Breezy from the NE at 10 to 13 mph17 to 21 km/h. Dry air. Friday Night: Mostly clear, with a low around 67°F20°C. Breezy from the NE at 7 to 8 mph12 to 13 km/h.
Clear	High 83°F28°C	Low 67°F19°C	Precip 0 in0.1 mm3%	Cloud 25%	Wind NE 6 mph9 km/h	Saturday: Partly cloudy and warm, with a high of 83°F28°C and morning low of 68°F20°C. Breezy from the ENE at 6 to 7 mph9 to 11 km/h. Dry air. Saturday Night: Mostly clear, with a low around 67°F19°C. Breezy from the NE at 6 to 7 mph9 to 11 km/h.
Clear	High 80°F27°C	Low 61°F16°C	Precip 0 in0 mm—	Cloud 1%	Wind S 5 mph8 km/h	Sunday: Mostly clear and warm, with a high of 80°F27°C and morning low of 62°F17°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. Dry air. Sunday Night: Mostly clear, with a low around 61°F16°C. Light wind from the NE around 5 mph8 km/h.
Clear	High 76°F24°C	Low 60°F15°C	Precip 0 in0 mm—	Cloud 3%	Wind S 5 mph9 km/h	Monday: Mostly clear and warm, with a high of 76°F24°C and morning low of 61°F16°C. Breezy from the SSW at 6 to 8 mph9 to 12 km/h. Dry air. Monday Night: Mostly clear, with a low around 60°F15°C. Breezy from the SE at 5 to 7 mph8 to 11 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdayOct 13	69°F21°C	55°F13°C	0 in0 mm· —	3%	Clear	NNE 4 mph7 km/h
DayMostly clear and warm, with a high of 69°F21°C and morning low of 63°F17°C. Light wind from the NE around 4 mph7 km/h. Dry air. NightMostly clear, with a low around 55°F13°C. Light wind from the NNE around 4 mph7 km/h.
	WednesdayOct 14	76°F25°C	50°F10°C	0 in0 mm· —	0%	Clear	NNE 5 mph8 km/h
DayMostly clear and warm, with a high of 76°F25°C and morning low of 52°F11°C. Light wind from the NNE around 4 mph7 km/h. Dry air. NightMostly clear, with a low around 50°F10°C. Light wind from the NNE around 5 mph8 km/h.
	ThursdayOct 15	82°F28°C	56°F13°C	0 in0 mm· —	0%	Clear	NE 7 mph12 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 58°F14°C. Breezy from the NE at 8 mph13 km/h. Dry air. NightMostly clear, with a low around 56°F13°C. Breezy from the NE at 7 to 8 mph10 to 12 km/h.
	FridayOct 16	86°F30°C	67°F20°C	0 in0 mm· —	4%	Clear	NE 9 mph14 km/h
DayMostly clear and hot, with a high of 86°F30°C and morning low of 68°F20°C. Breezy from the NE at 10 to 13 mph17 to 21 km/h. Dry air. NightMostly clear, with a low around 67°F20°C. Breezy from the NE at 7 to 8 mph12 to 13 km/h.
	SaturdayOct 17	83°F28°C	67°F19°C	0 in0.1 mm· 3%	25%	Clear	NE 6 mph9 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 68°F20°C. Breezy from the ENE at 6 to 7 mph9 to 11 km/h. Dry air. NightMostly clear, with a low around 67°F19°C. Breezy from the NE at 6 to 7 mph9 to 11 km/h.
	SundayOct 18	80°F27°C	61°F16°C	0 in0 mm· —	1%	Clear	S 5 mph8 km/h
DayMostly clear and warm, with a high of 80°F27°C and morning low of 62°F17°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. Dry air. NightMostly clear, with a low around 61°F16°C. Light wind from the NE around 5 mph8 km/h.
	MondayOct 19	76°F24°C	60°F15°C	0 in0 mm· —	3%	Clear	S 5 mph9 km/h
DayMostly clear and warm, with a high of 76°F24°C and morning low of 61°F16°C. Breezy from the SSW at 6 to 8 mph9 to 12 km/h. Dry air. NightMostly clear, with a low around 60°F15°C. Breezy from the SE at 5 to 7 mph8 to 11 km/h.
	TuesdayOct 20	67°F19°C	58°F14°C	0.05 in1.3 mm· 23%	35%	Drizzle	S 6 mph9 km/h
DayPartly cloudy and mild, with a high of 67°F19°C and morning low of 59°F15°C. Breezy from the S at 7 to 8 mph11 to 12 km/h. 22% chance of drizzle in the afternoon. Dry air. NightPartly cloudy, with a low around 58°F14°C. Breezy from the SSE at 5 to 7 mph8 to 12 km/h. 23% chance of drizzle in the evening.
	WednesdayOct 21	63°F17°C	54°F12°C	0.24 in6 mm· 61%	50%	Showers	SE 5 mph8 km/h
DayMostly cloudy and mild, with a high of 63°F17°C and morning low of 55°F13°C. Light wind from the SSE around 5 mph9 km/h. 61% chance of showers in the morning. Dry air. NightPartly cloudy, with a low around 54°F12°C. Light wind from the SE around 5 mph8 km/h. 42% chance of showers overnight.
	ThursdayOct 22	66°F19°C	53°F11°C	0.17 in4.3 mm· 34%	37%	Showers	S 5 mph7 km/h
DayPartly cloudy and mild, with a high of 66°F19°C and morning low of 54°F12°C. Light wind from the SSW around 5 mph7 km/h. 34% chance of showers in the morning. Dry air. NightPartly cloudy, with a low around 53°F11°C. Light wind from the SSE around 5 mph8 km/h. 26% chance of showers overnight.
	FridayOct 23	69°F21°C	53°F12°C	0.03 in0.8 mm· 11%	30%	Drizzle	SSW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 69°F21°C and morning low of 54°F12°C. Light wind from the SSW around 4 mph7 km/h. 11% chance of drizzle in the afternoon. Dry air. NightPartly cloudy, with a low around 53°F12°C. Light wind from the SSE around 5 mph7 km/h.
	SaturdayOct 24	71°F21°C	55°F13°C	0.04 in0.9 mm· 13%	38%	Drizzle	ESE 5 mph7 km/h
DayPartly cloudy and warm, with a high of 71°F21°C and morning low of 56°F13°C. Light wind from the S around 4 mph7 km/h. 13% chance of drizzle in the morning. Dry air. NightPartly cloudy, with a low around 55°F13°C. Light wind from the ENE around 5 mph8 km/h.
	SundayOct 25	71°F22°C	56°F13°C	0.02 in0.6 mm· 12%	36%	Drizzle	ESE 5 mph7 km/h
DayPartly cloudy and warm, with a high of 71°F22°C and morning low of 57°F14°C. Light wind from the SSE around 4 mph7 km/h. 12% chance of drizzle in the afternoon. Dry air. NightPartly cloudy, with a low around 56°F13°C. Light wind from the ENE around 5 mph8 km/h.
	MondayOct 26	71°F22°C	56°F13°C	0.03 in0.7 mm· 12%	33%	Drizzle	E 5 mph7 km/h
DayPartly cloudy and warm, with a high of 71°F22°C and morning low of 57°F14°C. Light wind from the SSE around 4 mph7 km/h. 12% chance of drizzle in the afternoon. Dry air. NightPartly cloudy, with a low around 56°F13°C. Light wind from the NE around 5 mph8 km/h.
	TuesdayOct 27	70°F21°C	56°F13°C	0.06 in1.4 mm· 16%	40%	Drizzle	ESE 5 mph7 km/h
DayPartly cloudy and warm, with a high of 70°F21°C and morning low of 58°F14°C. Light wind from the SSE around 5 mph7 km/h. 16% chance of drizzle in the morning. Dry air. NightPartly cloudy, with a low around 56°F13°C. Light wind from the ENE around 5 mph8 km/h.

Nearby Cities

Pasadena3 mi5 km La Cañada Flintridge3 mi5 km South Pasadena5 mi8 km Arcadia6 mi10 km Alhambra7 mi11 km San Gabriel7 mi11 km

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

Pattern	Example	Description
/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=11.5	Find 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: 34.1897°N, 118.1312°W·Elevation: 414m·Timezone: America/Los_Angeles·Population: 42,777