Observed 12:10 AM PDT at KSNA

Aliso Viejo, CA weather

Clear and 63°17°, jacket by 7 AM.

Mostly agree

Now 63°17°

Clear

Wind: 3 mph5 km/h; From the east-northeast. Up to 5 mph8 km/h through 12 PM
Dew point: 57°14°; A little sticky
UV index: 0Low; High 1–2 PM · peak 6
Air today: 49Good; EPA forecast · Ozone
Pressure: 29.91 inHg1013 hPa; Steady over the next 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 55°13° today at 7 AM
Above 60°16° today by 9 AM
High 73°23° today at 1 PM

TonightNear 57°14° · Clear
This morningUp to 69°21° by 11 AM · Clear
This afternoonNear 72°22° · Clear
TonightDown to 57°14° by 5 AM · Clear
Tomorrow morningUp to 73°23° by 11 AM · Clear
Tomorrow afternoonNear 75°24° · Partly cloudy
Tomorrow nightDown to 66°19° by 11 PM · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 12a	Clear	58°14° (likely 54°12° to 60°16°)	58°14°	0%	0 mph0 km/h, gusts 4 mph7 km/h	95%	7%	0
Sat 1a	Clear	58°14° (likely 54°12° to 60°16°)	58°14°	0%	0 mph0 km/h, gusts 4 mph6 km/h	95%	5%	0
Sat 2a	Clear	57°14° (likely 54°12° to 59°15°)	57°14°	0%	0 mph0 km/h, gusts 4 mph6 km/h	95%	2%	0
Sat 3a	Clear	57°14° (likely 53°12° to 59°15°)	57°14°	0%	0 mph0 km/h, gusts 5 mph7 km/h	95%	0%	0
Sat 4a	Clear	56°13° (likely 53°12° to 58°14°)	56°13°	0%	0 mph0 km/h, gusts 4 mph6 km/h	94%	0%	0
Sat 5a	Clear	56°13° (likely 52°11° to 57°14°)	56°13°	0%	0 mph0 km/h, gusts 4 mph6 km/h	96%	4%	0
Sat 6a	Clear	56°13° (likely 52°11° to 57°14°)	56°13°	0%	0 mph0 km/h, gusts 4 mph7 km/h	96%	0%	0
Sat 7a	Sunny	55°13° (likely 51°11° to 56°13°)	55°13°	0%	0 mph0 km/h, gusts 4 mph7 km/h	97%	5%	0
Sat 8a	Sunny	57°14° (likely 53°12° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 4 mph6 km/h	94%	6%	0
Sat 9a	Sunny	61°16° (likely 60°16° to 63°17°)	61°16°	0%	0 mph0 km/h, gusts 5 mph8 km/h	86%	0%	1
Sat 10a	Sunny	66°19° (likely 66°19° to 68°20°)	66°19°	0%	0 mph0 km/h, gusts 9 mph15 km/h	71%	0%	3
Sat 11a	Sunny	69°21° (likely 69°21° to 71°22°)	69°21°	0%	5 mph8 km/h from NW, gusts 10 mph16 km/h	63%	0%	4
Sat 12p	Sunny	71°22° (likely 71°22° to 74°23°)	71°22°	0%	5 mph8 km/h from W, gusts 7 mph12 km/h	58%	1%	5
Sat 1p	Sunny	73°23° (likely 72°22° to 74°23°)	73°23°	0%	5 mph8 km/h from SW, gusts 10 mph16 km/h	56%	4%	6
Sat 2p	Sunny	73°23° (likely 73°23° to 75°24°)	73°23°	0%	10 mph16 km/h from W, gusts 11 mph18 km/h	56%	5%	5
Sat 3p	Sunny	73°23° (likely 72°22° to 75°24°)	73°23°	0%	10 mph16 km/h from W, gusts 12 mph19 km/h	56%	1%	4
Sat 4p	Sunny	73°23° (likely 71°22° to 75°24°)	73°23°	0%	5 mph8 km/h from W, gusts 11 mph18 km/h	57%	0%	3
Sat 5p	Sunny	72°22° (likely 70°21° to 73°23°)	72°22°	0%	5 mph8 km/h from W, gusts 9 mph15 km/h	60%	0%	2
Sat 6p	Clear	69°21° (likely 67°19° to 70°21°)	69°21°	0%	5 mph8 km/h from NW, gusts 8 mph13 km/h	69%	0%	0
Sat 7p	Clear	66°19° (likely 63°17° to 67°19°)	66°19°	0%	0 mph0 km/h, gusts 5 mph9 km/h	75%	0%	0
Sat 8p	Clear	64°18° (likely 60°16° to 65°18°)	64°18°	0%	0 mph0 km/h, gusts 3 mph5 km/h	80%	0%	0
Sat 9p	Clear	63°17° (likely 59°15° to 64°18°)	63°17°	0%	0 mph0 km/h, gusts 3 mph5 km/h	80%	0%	0
Sat 10p	Clear	62°17° (likely 57°14° to 63°17°)	62°17°	0%	0 mph0 km/h, gusts 4 mph6 km/h	81%	0%	0
Sat 11p	Clear	61°16° (likely 56°13° to 62°17°)	61°16°	0%	0 mph0 km/h, gusts 4 mph7 km/h	82%	0%	0
Sun 12a	Clear	60°16° (likely 56°13° to 60°16°)	61°16°	0%	0 mph0 km/h, gusts 4 mph7 km/h	85%	0%	0
Sun 1a	Clear	60°16° (likely 55°13° to 60°16°)	60°16°	0%	0 mph0 km/h, gusts 5 mph9 km/h	88%	0%	0
Sun 2a	Clear	59°15° (likely 55°13° to 60°16°)	59°15°	0%	0 mph0 km/h, gusts 6 mph10 km/h	88%	0%	0
Sun 3a	Clear	59°15° (likely 54°12° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 6 mph9 km/h	86%	0%	0
Sun 4a	Clear	58°14° (likely 54°12° to 59°15°)	58°14°	0%	0 mph0 km/h, gusts 5 mph8 km/h	87%	0%	0
Sun 5a	Clear	57°14° (likely 53°12° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 5 mph8 km/h	89%	0%	0
Sun 6a	Clear	57°14° (likely 53°12° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 6 mph10 km/h	86%	0%	0
Sun 7a	Sunny	57°14° (likely 53°12° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 6 mph9 km/h	87%	1%	0
Sun 8a	Sunny	59°15° (likely 55°13° to 60°16°)	59°15°	0%	0 mph0 km/h, gusts 5 mph9 km/h	81%	1%	0
Sun 9a	Sunny	65°18° (likely 63°17° to 66°19°)	65°18°	0%	0 mph0 km/h, gusts 5 mph8 km/h	68%	1%	1
Sun 10a	Sunny	69°21° (likely 69°21° to 72°22°)	69°21°	0%	0 mph0 km/h, gusts 3 mph5 km/h	60%	0%	3
Sun 11a	Sunny	73°23° (likely 73°23° to 75°24°)	73°23°	0%	0 mph0 km/h, gusts 5 mph8 km/h	55%	0%	4
Sun 12p	Sunny	75°24° (likely 74°23° to 76°24°)	75°24°	0%	0 mph0 km/h, gusts 8 mph13 km/h	53%	40%	5
Sun 1p	Sunny	76°24° (likely 75°24° to 77°25°)	76°24°	0%	5 mph8 km/h from SW, gusts 9 mph14 km/h	51%	40%	5
Sun 2p	Sunny	77°25° (likely 76°24° to 77°25°)	77°25°	0%	5 mph8 km/h from W, gusts 9 mph15 km/h	50%	40%	5
Sun 3p	Sunny	76°24° (likely 76°24° to 78°26°)	76°24°	0%	5 mph8 km/h from W, gusts 10 mph16 km/h	51%	36%	4
Sun 4p	Sunny	77°25° (likely 75°24° to 77°25°)	77°25°	0%	5 mph8 km/h from W, gusts 10 mph16 km/h	50%	31%	3
Sun 5p	Sunny	75°24° (likely 73°23° to 75°24°)	75°24°	0%	5 mph8 km/h from W, gusts 9 mph15 km/h	52%	38%	1
Sun 6p	Clear	73°23° (likely 69°21° to 73°23°)	73°23°	0%	0 mph0 km/h, gusts 7 mph11 km/h	58%	26%	0
Sun 7p	Clear	73°23° (likely 63°17° to 73°23°)	73°23°	0%	0 mph0 km/h, gusts 4 mph7 km/h	57%	25%	0
Sun 8p	Clear	69°21° (likely 60°16° to 70°21°)	69°21°	0%	0 mph0 km/h, gusts 4 mph6 km/h	66%	25%	0
Sun 9p	Clear	73°23° (likely 57°14° to 73°23°)	73°23°	0%	0 mph0 km/h, gusts 4 mph6 km/h	57%	28%	0
Sun 10p	Partly cloudy	73°23° (likely 55°13° to 73°23°)	73°23°	0%	0 mph0 km/h, gusts 4 mph7 km/h	56%	53%	0
Sun 11p	Mostly clear	66°19° (likely 54°12° to 68°20°)	66°19°	0%	0 mph0 km/h, gusts 4 mph6 km/h	67%	54%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Sunny. High 74°23°, low 55°13°. Typical 78°26° / 58°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 57°14°
  Dry
Official NWS forecast
Today: Sunny, with a high near 74. Southwest wind 0 to 10 mph.
Tonight: Clear, with a low around 55. North wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–75°24°
Low, likely
51°11°–56°13°
Typical high / low
78°26° / 58°14°
Wind
11 mph17 km/h
UV peak
6
Tomorrow, Oct 25. Mostly sunny. High 77°25°, low 59°15°. Typical 78°26° / 58°14°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 77°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 69°21°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 58°15°
  Dry
Official NWS forecast
Day: Sunny, with a high near 77. Southwest wind 0 to 5 mph.
Night: Mostly clear, with a low around 59. North wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
75°24°–78°26°
Low, likely
52°11°–59°15°
Typical high / low
78°26° / 58°14°
Wind
9 mph14 km/h, gusts 15 mph24 km/h
UV peak
5
Monday, Oct 26. Mostly sunny. High 78°26°, low 56°13°. Typical 78°26° / 58°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 78°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 57°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 78.
Night: Mostly clear, with a low around 56.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
76°24°–79°26°
Low, likely
53°12°–63°17°
Typical high / low
78°26° / 58°14°
Wind
11 mph18 km/h, gusts 16 mph26 km/h
UV peak
5
Tuesday, Oct 27. Mostly sunny. High 76°24°, low 56°13°. Typical 78°26° / 57°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 74°24°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 58°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 76.
Night: Partly cloudy, with a low around 56.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–77°25°
Low, likely
51°11°–60°16°
Typical high / low
78°26° / 57°14°
Wind
11 mph18 km/h
UV peak
5
Wednesday, Oct 28. Cloudy. High 75°24°, low 58°14°. Typical 78°26° / 57°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 60°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 75.
Night: Mostly cloudy, with a low around 58.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–76°24°
Low, likely
55°13°–61°16°
Typical high / low
78°26° / 57°14°
Wind
12 mph19 km/h
UV peak
5
Thursday, Oct 29. Cloudy. High 71°22°, low 57°14°. Typical 78°26° / 57°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 61°16°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 60°16°
  30% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 71.
Night: A chance of rain showers after 11pm. Mostly cloudy, with a low around 57.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–71°22°
Low, likely
57°14°–61°16°
Typical high / low
78°26° / 57°14°
Wind
8 mph13 km/h, gusts 19 mph30 km/h
UV peak
4
Friday, Oct 30. Showers. High 70°21°, low 59°15°. Typical 78°26° / 57°14°. Rain 0.13 in3.3 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 60°16°
  30% chance · 0.02 in0.5 mm
2. Afternoon
  noon–6 PM
  Drizzle, 68°20°
  30% chance · 0.05 in1.4 mm
3. Evening
  6 PM–midnight
  Clear, 63°17°
  30% chance · 0.07 in1.7 mm
4. Overnight
  midnight–6 AM
  Cloudy, 61°16°
  30% chance · 0.05 in1.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers. Partly sunny, with a high near 70.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
56°13°–62°17°
Typical high / low
78°26° / 57°14°
Wind
11 mph17 km/h, gusts 24 mph39 km/h
UV peak
5
Saturday, Oct 31. Cloudy. High 68°20°, low 58°14°. Typical 78°26° / 56°13°. Rain 0.23 in5.8 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 62°16°
  30% chance · 0.04 in1.1 mm
2. Afternoon
  noon–6 PM
  Cloudy, 69°20°
  40% chance · 0.1 in2.4 mm
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  40% chance · 0.02 in0.5 mm
4. Overnight
  midnight–6 AM
  Cloudy, 58°15°
  50% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
55°13°–61°16°
Typical high / low
78°26° / 56°13°
Wind
9 mph14 km/h, gusts 21 mph33 km/h
UV peak
3
Sunday, Nov 1. Drizzle. High 72°22°, low 57°14°. Typical 77°25° / 56°13°. Rain 0.15 in3.8 mm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 60°16°
  50% chance
2. Afternoon
  noon–6 PM
  Partly sunny, 73°23°
  40% chance
3. Evening
  6 PM–midnight
  Showers, 65°18°
  40% chance · 0.21 in5.3 mm
4. Overnight
  midnight–6 AM
  Showers, 60°15°
  30% chance · 0.09 in2.4 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–75°24°
Low, likely
52°11°–64°18°
Typical high / low
77°25° / 56°13°
Wind
11 mph17 km/h, gusts 19 mph30 km/h
UV peak
5
Monday, Nov 2. Showers. High 71°22°, low 60°16°. Typical 77°25° / 56°13°. Rain 0.2 in5.1 mm, 40% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 65°18°
  30% chance
2. Afternoon
  noon–6 PM
  Sunny, 73°23°
  20% chance
3. Evening
  6 PM–midnight
  Clear, 65°19°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
69°21°–72°22°
Low, likely
57°14°–65°18°
Typical high / low
77°25° / 56°13°
Wind
12 mph19 km/h
UV peak
5

10 days15 days30 days

The outlook

Today
Dry, high 74°, low 55°.
Tomorrow
Dry, high 77°, low 59°, warming up.
Monday
Dry, high 78°, low 56°.
Rest of week
Highs 68–76°; chance of precipitation on Sunday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (SGX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Santa Ana River at Santa Ana

16 mi

Below flood stage

Level: 3.3 ft
Flow: 589 cfs

Reading from Fri 11 PM · NWS gauge page

Temescal Creek near Corona

24 mi

Level: 2.3 ft
Flow: 1 cfs

Reading from Fri 10:15 PM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Cooling this week

About 63% less cooling than a typical week.

This week 7Typical 19

Cooling degree days, base 65°F

Comfort

Comfortable, non-humid air (dew point 57°F).

Open the windows?

Today, 9:00 AM–1:00 AM

Good stretch to open the windows (air quality forecast not available for part of this window).

Is this typical?

SANTA ANA FIRE STATION · official normals 1991–2020 · records 1916–2026

Oct 24, today vs a typical year

Today’s expected high is 4°2° colder than typical.

Last 7 days vs normal

—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23
—SatOct 24

Aliso Viejo weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 11 h 4 min; Losing 1 min 53 s a day; shortest Dec 21, 1 h 8 min less
Golden hour: 5:32–6:22 PM; Morning 6:47–7:37 AM
Blue hour: 6:22–6:31 PM; Morning 6:37–6:47 AM; first light 6:37 AM

Stars tonight? Fair

Clear 12:41–6:37 AM, but the moon is 96% lit and up.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:25 AM · rises 5:05 PM
Full moon: Oct 25
New moon: Nov 8

Looking north from Aliso Viejo. The highest point on the skyline is about 9,900 ft, 49 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.