Observed 11:25 PM PDT at KSNA

Santa Ana, CA weather

Clear and 63°17°, 8°4° colder than a typical Oct 23.

Forecasts agree

Now 63°17°

Clear

Wind: 5 mph7 km/h; From the east. Light through 11 AM
Dew point: 59°15°; A little sticky
UV tomorrow: 5Moderate; Moderate 10 AM–5 PM · peak 5
Air today: 37Good; EPA forecast · Ozone
Pressure: 29.92 inHg1013 hPa; Steady over the last 3 h

None rain now, through the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (62°17° then, 63°17° now)

Good hours for

Low 56°13° tonight at 4 AM
Above 70°21° tomorrow by 11 AM
High 77°25° tomorrow at 2 PM
Below 70°21° tomorrow night after 7 PM

TonightDown to 56°13° by 4 AM · Clear
Tomorrow morningUp to 72°22° by 11 AM · Clear
Tomorrow afternoonNear 75°24° · Clear
Tomorrow nightDown to 59°15° by 4 AM · Clear
Sunday morningUp to 76°24° by 11 AM · Clear
Sunday afternoonNear 79°26° · Partly cloudy
Sunday nightDown to 67°19° by 10 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
Fri 11p	Clear	62°17° (likely 58°14° to 62°17°)	62°17°	0%	0 mph0 km/h, gusts 2 mph4 km/h	90%	7%	0
Sat 12a	Clear	61°16° (likely 57°14° to 62°17°)	61°16°	0%	0 mph0 km/h, gusts 3 mph5 km/h	94%	2%	0
Sat 1a	Clear	60°16° (likely 55°13° to 61°16°)	60°16°	0%	0 mph0 km/h, gusts 4 mph6 km/h	97%	7%	0
Sat 2a	Clear	59°15° (likely 54°12° to 61°16°)	59°15°	0%	0 mph0 km/h, gusts 3 mph6 km/h	98%	10%	0
Sat 3a	Clear	58°14° (likely 53°12° to 60°16°)	58°14°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	11%	0
Sat 4a	Clear	56°13° (likely 53°12° to 59°15°)	57°14°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	13%	0
Sat 5a	Mostly clear	57°14° (likely 52°11° to 59°15°)	57°14°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	19%	0
Sat 6a	Clear	57°14° (likely 52°11° to 59°15°)	57°14°	0%	0 mph0 km/h, gusts 5 mph7 km/h	99%	13%	0
Sat 7a	Mostly sunny	56°13° (likely 52°11° to 58°14°)	56°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	100%	19%	0
Sat 8a	Mostly sunny	58°14° (likely 52°11° to 60°16°)	58°14°	0%	0 mph0 km/h, gusts 5 mph9 km/h	97%	15%	0
Sat 9a	Sunny	64°18° (likely 57°14° to 64°18°)	64°18°	0%	0 mph0 km/h, gusts 3 mph5 km/h	84%	0%	1
Sat 10a	Sunny	68°20° (likely 64°18° to 69°21°)	68°20°	0%	0 mph0 km/h, gusts 3 mph5 km/h	73%	0%	3
Sat 11a	Sunny	72°22° (likely 69°21° to 73°23°)	72°22°	0%	0 mph0 km/h, gusts 6 mph9 km/h	62%	0%	4
Sat 12p	Sunny	74°23° (likely 71°22° to 76°24°)	74°23°	0%	5 mph8 km/h from W, gusts 7 mph11 km/h	57%	0%	5
Sat 1p	Sunny	75°24° (likely 73°23° to 78°26°)	75°24°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	54%	0%	5
Sat 2p	Sunny	77°25° (likely 74°23° to 79°26°)	77°25°	0%	5 mph8 km/h from W, gusts 9 mph14 km/h	52%	0%	5
Sat 3p	Sunny	76°24° (likely 74°23° to 79°26°)	76°24°	0%	5 mph8 km/h from W, gusts 10 mph16 km/h	53%	0%	4
Sat 4p	Sunny	76°24° (likely 73°23° to 78°26°)	76°24°	0%	10 mph16 km/h from W, gusts 11 mph18 km/h	53%	0%	3
Sat 5p	Sunny	75°24° (likely 72°22° to 75°24°)	75°24°	0%	5 mph8 km/h from W, gusts 11 mph17 km/h	54%	0%	2
Sat 6p	Clear	72°22° (likely 69°21° to 72°22°)	72°22°	0%	5 mph8 km/h from SW, gusts 9 mph15 km/h	61%	0%	0
Sat 7p	Clear	69°21° (likely 66°19° to 70°21°)	69°21°	0%	5 mph8 km/h from SW, gusts 7 mph11 km/h	68%	0%	0
Sat 8p	Clear	68°20° (likely 63°17° to 68°20°)	68°20°	0%	0 mph0 km/h, gusts 5 mph7 km/h	73%	0%	0
Sat 9p	Clear	66°19° (likely 61°16° to 67°19°)	66°19°	0%	0 mph0 km/h, gusts 5 mph9 km/h	76%	0%	0
Sat 10p	Clear	65°18° (likely 60°16° to 65°18°)	65°18°	0%	5 mph8 km/h from SE, gusts 6 mph10 km/h	79%	0%	0
Sat 11p	Clear	64°18° (likely 58°14° to 64°18°)	65°18°	0%	5 mph8 km/h from SE, gusts 7 mph11 km/h	78%	0%	0
Sun 12a	Clear	63°17° (likely 57°14° to 63°17°)	63°17°	0%	5 mph8 km/h from E, gusts 6 mph9 km/h	82%	0%	0
Sun 1a	Clear	62°17° (likely 56°13° to 62°17°)	63°17°	0%	5 mph8 km/h from E, gusts 6 mph9 km/h	83%	2%	0
Sun 2a	Clear	61°16° (likely 55°13° to 61°16°)	61°16°	0%	5 mph8 km/h from E, gusts 5 mph8 km/h	84%	4%	0
Sun 3a	Clear	60°16° (likely 55°13° to 61°16°)	60°16°	0%	5 mph8 km/h from E, gusts 6 mph9 km/h	87%	2%	0
Sun 4a	Clear	59°15° (likely 54°12° to 60°16°)	59°15°	0%	5 mph8 km/h from E, gusts 6 mph10 km/h	87%	0%	0
Sun 5a	Clear	59°15° (likely 53°12° to 59°15°)	59°15°	0%	5 mph8 km/h from E, gusts 5 mph8 km/h	87%	0%	0
Sun 6a	Clear	59°15° (likely 52°11° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 5 mph8 km/h	84%	0%	0
Sun 7a	Sunny	59°15° (likely 52°11° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 5 mph9 km/h	85%	1%	0
Sun 8a	Sunny	60°16° (likely 53°12° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 5 mph8 km/h	83%	1%	0
Sun 9a	Sunny	65°18° (likely 60°16° to 68°20°)	65°18°	0%	0 mph0 km/h, gusts 5 mph8 km/h	73%	2%	1
Sun 10a	Sunny	70°21° (likely 67°19° to 72°22°)	71°22°	0%	0 mph0 km/h, gusts 3 mph5 km/h	61%	2%	3
Sun 11a	Sunny	76°24° (likely 72°22° to 76°24°)	76°24°	0%	0 mph0 km/h, gusts 4 mph7 km/h	52%	0%	4
Sun 12p	Sunny	78°26° (likely 74°23° to 78°26°)	79°26°	0%	0 mph0 km/h, gusts 5 mph9 km/h	47%	40%	5
Sun 1p	Sunny	80°27° (likely 76°24° to 80°27°)	80°27°	0%	0 mph0 km/h, gusts 7 mph12 km/h	44%	40%	5
Sun 2p	Sunny	81°27° (likely 76°24° to 81°27°)	81°27°	0%	5 mph8 km/h from W, gusts 9 mph14 km/h	42%	40%	5
Sun 3p	Sunny	81°27° (likely 76°24° to 81°27°)	81°27°	0%	5 mph8 km/h from SW, gusts 10 mph16 km/h	42%	36%	4
Sun 4p	Sunny	81°27° (likely 76°24° to 81°27°)	81°27°	0%	5 mph8 km/h from SW, gusts 10 mph16 km/h	43%	31%	3
Sun 5p	Sunny	79°26° (likely 75°24° to 79°26°)	80°27°	0%	5 mph8 km/h from SW, gusts 10 mph16 km/h	46%	40%	1
Sun 6p	Clear	77°25° (likely 71°22° to 77°25°)	77°25°	0%	5 mph8 km/h from SW, gusts 10 mph17 km/h	51%	25%	0
Sun 7p	Clear	73°23° (likely 66°19° to 73°23°)	73°23°	0%	5 mph8 km/h from W, gusts 7 mph11 km/h	58%	25%	0
Sun 8p	Clear	70°21° (likely 62°17° to 73°23°)	70°21°	0%	5 mph8 km/h from W, gusts 3 mph5 km/h	66%	26%	0
Sun 9p	Mostly clear	68°20° (likely 59°15° to 72°22°)	69°21°	0%	5 mph8 km/h from NW, gusts 3 mph5 km/h	69%	39%	0
Sun 10p	Mostly clear	67°19° (likely 57°14° to 72°22°)	67°19°	0%	5 mph8 km/h from N, gusts 3 mph5 km/h	71%	58%	0

Days ahead

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

Today, Oct 23. Drizzle. High 71°22°, low 56°13°. Typical 79°26° / 58°14°. Rain 0.04 in1 mm, 60% chance. Forecasts agree.
1. Overnight
  midnight–6 AM
  Clear, 56°13°
  Dry
Official NWS forecast
Tonight: Mostly clear, with a low around 56. East wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
71°22°
Low, likely
56°13°–61°16°
Typical high / low
79°26° / 58°14°
Wind
8 mph12 km/h, gusts 16 mph26 km/h
UV peak
5
Tomorrow, Oct 24. Sunny. High 78°26°, low 59°15°. Typical 78°26° / 58°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 58°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 77°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 68°20°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 59°15°
  Dry
Official NWS forecast
Day: Sunny, with a high near 78. East wind 0 to 10 mph.
Night: Mostly clear, with a low around 59. Southeast wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
74°23°–79°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
Sunday, Oct 25. Mostly sunny. High 81°27°, low 61°16°. Typical 78°26° / 58°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 60°16°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 81°27°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 70°21°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 57°14°
  Dry
Official NWS forecast
Day: Sunny, with a high near 81. South wind 0 to 5 mph.
Night: Mostly clear, with a low around 61. Northwest wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
76°24°–81°27°
Low, likely
52°11°–61°16°
Typical high / low
78°26° / 58°14°
Wind
9 mph14 km/h, gusts 15 mph25 km/h
UV peak
5
Monday, Oct 26. Mostly sunny. High 83°28°, low 59°15°. Typical 78°26° / 58°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 79°26°
  Dry
3. Evening
  6 PM–midnight
  Clear, 67°20°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 58°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 83.
Night: Mostly clear, with a low around 59.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
77°25°–83°28°
Low, likely
49°9°–64°18°
Typical high / low
78°26° / 58°14°
Wind
11 mph17 km/h, gusts 18 mph29 km/h
UV peak
5
Tuesday, Oct 27. Partly sunny. High 80°27°, low 59°15°. Typical 78°26° / 57°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 59°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 80.
Night: Partly cloudy, with a low around 59.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–80°27°
Low, likely
51°11°–63°17°
Typical high / low
78°26° / 57°14°
Wind
11 mph18 km/h
UV peak
5
Wednesday, Oct 28. Mostly cloudy. High 78°26°, low 59°15°. Typical 78°26° / 57°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 65°19°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 61°16°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 78.
Night: Mostly cloudy, with a low around 59.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–78°26°
Low, likely
52°11°–63°17°
Typical high / low
78°26° / 57°14°
Wind
11 mph18 km/h
UV peak
5
Thursday, Oct 29. Mostly cloudy. High 75°24°, low 59°15°. Typical 78°26° / 57°14°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 62°16°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 62°17°
  20% chance · 0.02 in0.5 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 75.
Night: A slight chance of rain showers after 5am. Mostly cloudy, with a low around 59.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
70°21°–75°24°
Low, likely
55°13°–64°18°
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 73°23°, low 61°16°. Typical 78°26° / 57°14°. Rain 0.12 in3 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 62°17°
  20% chance · 0.02 in0.5 mm
2. Afternoon
  noon–6 PM
  Mostly sunny, 70°21°
  30% chance · 0.01 in0.3 mm
3. Evening
  6 PM–midnight
  Clear, 65°18°
  20% chance · 0.09 in2.4 mm
4. Overnight
  midnight–6 AM
  Rain, 62°17°
  30% chance · 0.14 in3.7 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers before 5pm. Mostly sunny, with a high near 73.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–73°23°
Low, likely
57°14°–65°18°
Typical high / low
78°26° / 57°14°
Wind
10 mph15 km/h, gusts 19 mph31 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 70°21°, low 60°16°. Typical 78°26° / 56°13°. Rain 0.44 in11 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 62°17°
  30% chance · 0.1 in2.4 mm
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  30% chance · 0.19 in4.7 mm
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  40% chance
4. Overnight
  midnight–6 AM
  Cloudy, 60°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
67°19°–73°23°
Low, likely
55°13°–65°18°
Typical high / low
78°26° / 56°13°
Wind
8 mph13 km/h, gusts 20 mph32 km/h
UV peak
3
Sunday, Nov 1. Showers. High 73°23°, low 58°14°. Typical 77°25° / 56°13°. Rain 0.15 in3.8 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 61°16°
  50% chance
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  40% chance
3. Evening
  6 PM–midnight
  Showers, 66°19°
  40% chance · 0.19 in4.8 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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
68°20°–77°25°
Low, likely
50°10°–66°19°
Typical high / low
77°25° / 56°13°
Wind
15 mph25 km/h, gusts 29 mph47 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
56% chance of rain, high 71°, low 56°.
Tomorrow
Dry, high 78°, low 59°, warming up.
Sunday
Dry, high 81°, low 61°, warming up.
Rest of week
Highs 70–83°; 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

1.8 mi

Below flood stage

Level: 3.3 ft
Flow: 589 cfs

Reading from Fri 11 PM · NWS gauge page

Los Angeles River below Wardlow Road

19 mi

Level: 0.4 ft

Reading from Fri 11 PM · NWS gauge page

Temescal Creek near Corona

21 mi

Level: 2.3 ft
Flow: 1 cfs

Reading from Fri 10:15 PM · NWS gauge page

San Gabriel River (CA) at Parkway

22 mi

Level: 1.6 ft

Reading from Fri 11 PM · NWS gauge page

For your home

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

Cooling this week

About 53% less cooling than a typical week.

This week 9Typical 20

Cooling degree days, base 65°F

Comfort

Comfortable, non-humid air (dew point 59°F).

Open the windows?

Sat, 12:00 AM–1:00 AM

Good stretch to open the windows.

Is this typical?

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

Oct 23, today vs a typical year

Today’s expected high is 8°4° colder than typical.

Last 7 days vs normal

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

Santa Ana weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 11 h 5 min; Losing 1 min 57 s a day; shortest Dec 21, 1 h 10 min less
Golden hour: 5:33–6:23 PM; Morning 6:47–7:37 AM
Blue hour: 6:23–6:33 PM; Morning 6:37–6:47 AM; first light 6:37 AM

Stars tonight? Fair

Clear 11:46 PM–6:38 AM, but the moon is 96% lit and up.

Moon

Waxing gibbous

95% lit · growing

Today: sets 4:22 AM · rises 4:36 PM
Full moon: Oct 25
New moon: Nov 8

Looking northeast from Santa Ana. The highest point on the skyline is about 14,400 ft, 41 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Santa Ana, CA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Sunday

Rest of week

What changed since yesterday

Radar

Rivers

Santa Ana River at Santa Ana

Los Angeles River below Wardlow Road

Temescal Creek near Corona

San Gabriel River (CA) at Parkway

For your home

Cooling this week

Comfort

Open the windows?

Is this typical?

Oct 23, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon