Observed 10:00 PM PDT at KHHR

South San Gabriel, CA weather

Clear and 68°20°.

Mostly agree

Now 68°20°

Clear

Wind: Calm; Up to 5 mph8 km/h through 10 AM
Dew point: 57°14°; A little sticky
UV tomorrow: 5Moderate; Moderate 10 AM–5 PM · peak 5
Air quality: 30Good; Main pollutant: Ozone
Pressure: 29.92 inHg1013 hPa; Steady over the last 3 h

Light rain now, through the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 54°12° tonight at 5 AM
Above 60°16° tomorrow by 10 AM
High 76°24° tomorrow at 3 PM
Below 70°21° tomorrow night after 6 PM

TonightDown to 54°12° by 5 AM · Clear
Tomorrow morningUp to 65°18° by 11 AM · Clear
Tomorrow afternoonUp to 76°24° by 3 PM · Clear
Tomorrow nightDown to 58°14° by 4 AM · Clear
Sunday morningUp to 68°20° by 11 AM · Clear
Sunday afternoonUp to 80°27° by 3 PM · Partly cloudy
Sunday nightDown to 64°18° by 9 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 10p	Clear	59°15° (likely 56°13° to 62°17°)	59°15°	5%	5 mph8 km/h from W, gusts 3 mph5 km/h	88%	0%	0
Fri 11p	Clear	59°15° (likely 55°13° to 61°16°)	59°15°	0%	0 mph0 km/h, gusts 4 mph7 km/h	88%	0%	0
Sat 12a	Clear	59°15° (likely 54°12° to 60°16°)	59°15°	0%	0 mph0 km/h, gusts 4 mph6 km/h	91%	1%	0
Sat 1a	Clear	59°15° (likely 53°12° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 3 mph5 km/h	92%	2%	0
Sat 2a	Clear	57°14° (likely 52°11° to 58°14°)	57°14°	0%	5 mph8 km/h from NNE, gusts 3 mph5 km/h	92%	4%	0
Sat 3a	Clear	57°14° (likely 51°11° to 58°14°)	57°14°	0%	5 mph8 km/h from NNE, gusts 3 mph5 km/h	95%	9%	0
Sat 4a	Clear	57°14° (likely 51°11° to 57°14°)	57°14°	0%	5 mph8 km/h from NNE, gusts 4 mph6 km/h	96%	15%	0
Sat 5a	Clear	54°12° (likely 50°10° to 56°13°)	54°12°	0%	5 mph8 km/h from N, gusts 4 mph6 km/h	96%	18%	0
Sat 6a	Clear	54°12° (likely 50°10° to 56°13°)	54°12°	0%	5 mph8 km/h from N, gusts 4 mph6 km/h	96%	15%	0
Sat 7a	Sunny	54°12° (likely 49°9° to 55°13°)	54°12°	0%	5 mph8 km/h from N, gusts 3 mph5 km/h	96%	10%	0
Sat 8a	Sunny	56°13° (likely 51°11° to 57°14°)	56°13°	0%	5 mph8 km/h from NNW, gusts 5 mph8 km/h	94%	7%	0
Sat 9a	Sunny	57°14° (likely 56°13° to 63°17°)	57°14°	0%	5 mph8 km/h from NNW, gusts 5 mph8 km/h	83%	6%	1
Sat 10a	Sunny	60°16° (likely 60°16° to 67°19°)	60°16°	0%	5 mph8 km/h from NNW, gusts 4 mph6 km/h	73%	3%	3
Sat 11a	Sunny	65°18° (likely 65°18° to 72°22°)	65°18°	0%	5 mph8 km/h from NNE, gusts 4 mph6 km/h	62%	1%	4
Sat 12p	Sunny	68°20° (likely 68°20° to 75°24°)	68°20°	0%	5 mph8 km/h from NNE, gusts 5 mph8 km/h	57%	0%	5
Sat 1p	Sunny	71°22° (likely 71°22° to 78°26°)	71°22°	0%	5 mph8 km/h from NNE, gusts 7 mph11 km/h	52%	1%	5
Sat 2p	Sunny	73°23° (likely 73°23° to 80°27°)	73°23°	0%	5 mph8 km/h from WSW, gusts 8 mph13 km/h	48%	1%	5
Sat 3p	Sunny	76°24° (likely 75°24° to 81°27°)	76°24°	0%	5 mph8 km/h from WSW, gusts 9 mph14 km/h	51%	1%	4
Sat 4p	Sunny	74°23° (likely 74°23° to 81°27°)	74°23°	0%	5 mph8 km/h from WSW, gusts 8 mph14 km/h	53%	0%	3
Sat 5p	Sunny	71°22° (likely 71°22° to 77°25°)	71°22°	0%	5 mph8 km/h from WSW, gusts 12 mph20 km/h	51%	0%	2
Sat 6p	Clear	68°20° (likely 68°20° to 73°23°)	68°20°	0%	5 mph8 km/h from WSW, gusts 11 mph18 km/h	58%	0%	0
Sat 7p	Clear	66°19° (likely 66°19° to 69°21°)	66°19°	0%	5 mph8 km/h from WSW, gusts 9 mph14 km/h	65%	0%	0
Sat 8p	Clear	66°19° (likely 62°17° to 67°19°)	66°19°	0%	5 mph8 km/h from NW, gusts 6 mph9 km/h	72%	0%	0
Sat 9p	Clear	64°18° (likely 59°15° to 65°18°)	64°18°	0%	5 mph8 km/h from NW, gusts 2 mph4 km/h	76%	0%	0
Sat 10p	Clear	64°18° (likely 57°14° to 64°18°)	64°18°	0%	5 mph8 km/h from NW, gusts 3 mph4 km/h	76%	1%	0
Sat 11p	Clear	63°17° (likely 56°13° to 63°17°)	63°17°	0%	5 mph8 km/h from NNE, gusts 4 mph6 km/h	76%	1%	0
Sun 12a	Clear	63°17° (likely 55°13° to 63°17°)	63°17°	0%	5 mph8 km/h from NNE, gusts 5 mph8 km/h	78%	1%	0
Sun 1a	Clear	61°16° (likely 54°12° to 61°16°)	61°16°	0%	5 mph8 km/h from NNE, gusts 6 mph9 km/h	78%	1%	0
Sun 2a	Clear	59°15° (likely 54°12° to 60°16°)	59°15°	0%	5 mph8 km/h from NE, gusts 5 mph8 km/h	77%	0%	0
Sun 3a	Clear	59°15° (likely 53°12° to 59°15°)	59°15°	0%	5 mph8 km/h from NE, gusts 6 mph9 km/h	77%	0%	0
Sun 4a	Clear	58°14° (likely 53°12° to 59°15°)	58°14°	0%	5 mph8 km/h from NE, gusts 6 mph9 km/h	77%	0%	0
Sun 5a	Clear	58°14° (likely 52°11° to 58°14°)	58°14°	0%	5 mph8 km/h from N, gusts 5 mph7 km/h	77%	0%	0
Sun 6a	Clear	58°14° (likely 51°11° to 58°14°)	58°14°	0%	5 mph8 km/h from N, gusts 4 mph7 km/h	78%	0%	0
Sun 7a	Sunny	56°13° (likely 50°10° to 56°13°)	56°13°	0%	5 mph8 km/h from N, gusts 5 mph7 km/h	78%	0%	0
Sun 8a	Sunny	58°14° (likely 52°11° to 58°14°)	58°14°	0%	5 mph8 km/h from NE, gusts 4 mph7 km/h	74%	0%	0
Sun 9a	Sunny	61°16° (likely 58°14° to 64°18°)	61°16°	0%	5 mph8 km/h from NE, gusts 4 mph7 km/h	67%	1%	1
Sun 10a	Sunny	65°18° (likely 65°18° to 69°21°)	65°18°	0%	5 mph8 km/h from NE, gusts 3 mph6 km/h	59%	0%	3
Sun 11a	Sunny	68°20° (likely 68°20° to 73°23°)	68°20°	0%	0 mph0 km/h, gusts 3 mph5 km/h	51%	0%	4
Sun 12p	Sunny	71°22° (likely 71°22° to 77°25°)	71°22°	0%	0 mph0 km/h, gusts 4 mph6 km/h	46%	4%	5
Sun 1p	Sunny	75°24° (likely 75°24° to 79°26°)	75°24°	0%	0 mph0 km/h, gusts 4 mph6 km/h	42%	40%	5
Sun 2p	Sunny	78°26° (likely 78°26° to 81°27°)	78°26°	0%	5 mph8 km/h from W, gusts 5 mph8 km/h	41%	40%	5
Sun 3p	Sunny	80°27° (likely 78°26° to 82°28°)	80°27°	0%	5 mph8 km/h from W, gusts 7 mph11 km/h	40%	35%	4
Sun 4p	Sunny	80°27° (likely 79°26° to 82°28°)	80°27°	0%	5 mph8 km/h from W, gusts 9 mph14 km/h	41%	31%	3
Sun 5p	Sunny	78°26° (likely 77°25° to 79°26°)	78°26°	0%	5 mph8 km/h from WSW, gusts 12 mph19 km/h	44%	40%	1
Sun 6p	Clear	74°23° (likely 73°23° to 75°24°)	74°23°	0%	5 mph8 km/h from WSW, gusts 12 mph19 km/h	50%	25%	0
Sun 7p	Clear	70°21° (likely 66°19° to 73°23°)	70°21°	0%	5 mph8 km/h from WSW, gusts 8 mph13 km/h	58%	25%	0
Sun 8p	Clear	67°19° (likely 61°16° to 73°23°)	67°19°	0%	0 mph0 km/h, gusts 4 mph7 km/h	64%	25%	0
Sun 9p	Mostly clear	64°18° (likely 57°14° to 73°23°)	64°18°	0%	0 mph0 km/h, gusts 4 mph6 km/h	67%	52%	0

Days ahead

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

Today, Oct 23. Cloudy. High 73°23°, low 54°12°. Typical 78°26° / 59°15°. Rain 0.04 in1 mm, 50% chance. Mostly agree.
1. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 54°12°
  Dry
Official NWS forecast
Tonight: Mostly clear, with a low around 54. North wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–74°23°
Low, likely
54°12°–59°15°
Typical high / low
78°26° / 59°15°
Wind
8 mph12 km/h, gusts 16 mph26 km/h
UV peak
5
Tomorrow, Oct 24. Sunny. High 76°24°, low 56°13°. Typical 78°26° / 58°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Clear, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 58°14°
  Dry
Official NWS forecast
Day: Sunny, with a high near 76. North northwest wind around 5 mph.
Night: Mostly clear, with a low around 56. North wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–81°27°
Low, likely
49°9°–56°13°
Typical high / low
78°26° / 58°14°
Wind
10 mph15 km/h, gusts 16 mph26 km/h
UV peak
5
Sunday, Oct 25. Mostly sunny. High 80°27°, low 58°14°. Typical 78°26° / 58°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 58°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 80°27°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 67°19°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 57°14°
  Dry
Official NWS forecast
Day: Sunny, with a high near 80. West northwest wind 0 to 5 mph.
Night: Mostly clear, with a low around 58. Northwest wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
78°26°–82°28°
Low, likely
50°10°–58°14°
Typical high / low
78°26° / 58°14°
Wind
10 mph16 km/h, gusts 16 mph26 km/h
UV peak
5
Monday, Oct 26. Mostly sunny. High 82°28°, low 58°14°. Typical 77°25° / 58°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 80°27°
  Dry
3. Evening
  6 PM–midnight
  Clear, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 58°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 82.
Night: Mostly clear, with a low around 58.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
78°26°–82°28°
Low, likely
49°9°–63°17°
Typical high / low
77°25° / 58°14°
Wind
11 mph18 km/h, gusts 18 mph28 km/h
UV peak
5
Tuesday, Oct 27. Mostly sunny. High 81°27°, low 58°14°. Typical 77°25° / 58°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 58°15°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 58°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 81.
Night: Partly cloudy, with a low around 58.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–81°27°
Low, likely
51°11°–62°17°
Typical high / low
77°25° / 58°14°
Wind
9 mph15 km/h, gusts 15 mph23 km/h
UV peak
5
Wednesday, Oct 28. Mostly cloudy. High 79°26°, low 57°14°. Typical 77°25° / 58°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 58°14°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 76°25°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 60°16°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 79.
Night: Mostly cloudy, with a low around 57.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–79°26°
Low, likely
53°12°–62°17°
Typical high / low
77°25° / 58°14°
Wind
8 mph12 km/h, gusts 15 mph24 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 76°24°, low 57°14°. Typical 77°25° / 57°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 60°16°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 61°16°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 76.
Night: A slight chance of rain showers after 5am. Mostly cloudy, with a low around 57.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–76°24°
Low, likely
56°13°–64°18°
Typical high / low
77°25° / 57°14°
Wind
7 mph11 km/h, gusts 19 mph31 km/h
UV peak
4
Friday, Oct 30. Showers. High 73°23°, low 60°16°. Typical 77°25° / 57°14°. Rain 0.08 in2 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 61°16°
  20% chance · 0.01 in0.3 mm
2. Afternoon
  noon–6 PM
  Partly sunny, 70°21°
  30% chance · 0.01 in0.3 mm
3. Evening
  6 PM–midnight
  Clear, 64°18°
  30% chance · 0.03 in0.8 mm
4. Overnight
  midnight–6 AM
  Mostly clear, 60°15°
  30% chance · 0.09 in2.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers. Mostly sunny, with a high near 73.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–73°23°
Low, likely
56°13°–64°18°
Typical high / low
77°25° / 57°14°
Wind
10 mph16 km/h, gusts 20 mph32 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 69°21°, low 57°14°. Typical 77°25° / 57°14°. Rain 0.24 in6.1 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 59°15°
  30% chance · 0.1 in2.6 mm
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  40% chance · 0.05 in1.4 mm
3. Evening
  6 PM–midnight
  Cloudy, 63°17°
  40% chance
4. Overnight
  midnight–6 AM
  Partly cloudy, 58°15°
  40% 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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
63°17°–74°23°
Low, likely
50°10°–65°18°
Typical high / low
77°25° / 57°14°
Wind
7 mph12 km/h, gusts 20 mph32 km/h
UV peak
3
Sunday, Nov 1. Showers. High 73°23°, low 56°13°. Typical 76°24° / 57°14°. Rain 0.21 in5.3 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 60°15°
  40% chance
2. Afternoon
  noon–6 PM
  Cloudy, 74°23°
  40% chance
3. Evening
  6 PM–midnight
  Showers, 64°18°
  40% chance · 0.24 in6.2 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
70°21°–78°26°
Low, likely
48°9°–65°18°
Typical high / low
76°24° / 57°14°
Wind
13 mph20 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 73°, low 54°.
Tomorrow
Dry, high 76°, low 56°, warming up.
Sunday
Dry, high 80°, low 58°, warming up.
Rest of week
Highs 69–82°; chance of precipitation on Sunday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (LOX) (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

Alhambra Wash at Klingerman

0.8 mi

Below flood stage

Level: 0.3 ft

Reading from Fri 10 PM · NWS gauge page

Rio Hondo at Garvey

1.6 mi

Below flood stage

Level: 1.3 ft

Reading from Fri 10 PM · NWS gauge page

Rubio Wash at Glendon

2.1 mi

Level: 0.0 ft

Reading from Fri 10 PM · NWS gauge page

Rio Hondo below Whittier Narrows Dam

2.2 mi

Level: 1.3 ft

Reading from Fri 9:30 PM · NWS gauge page

For your home

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

Heating this week

This week 7Typical 0

Heating degree days, base 65°F

Comfort

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

Open the windows?

Sat, 10:00 AM–1:00 AM

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

Is this typical?

LOS ANGELES DOWNTOWN · official normals 1991–2020 · records 1877–2026

Oct 23, today vs a typical year

Today’s expected high is 5°3° colder than typical.

Last 7 days vs normal

On average 4°2° warmer than normal (daily mean temperature).

+11°+6°SatOct 17
+9°+5°SunOct 18
+5°+3°MonOct 19
+5°+3°TueOct 20
−1°WedOct 21
−3°−2°ThuOct 22
—FriOct 23

South San Gabriel weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 11 h 4 min; Losing 1 min 57 s a day; shortest Dec 21, 1 h 11 min less
Golden hour: 5:34–6:24 PM; Morning 6:48–7:38 AM
Blue hour: 6:24–6:34 PM; Morning 6:38–6:48 AM; first light 6:38 AM

Stars tonight? Fair

Clear 10:51 PM–6:39 AM, but the moon is 96% lit and up.

Moon

Waxing gibbous

95% lit · growing

Today: sets 4:23 AM · rises 4:37 PM
Full moon: Oct 25
New moon: Nov 8

Looking northeast from South San Gabriel. The highest point on the skyline is about 11,300 ft, 72 mi away.Skyline from USGS elevation data, heights drawn up to 5× taller. Sky, sun and moon as they are now.

South San Gabriel, CA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Sunday

Rest of week

What changed since yesterday

Radar

Rivers

Alhambra Wash at Klingerman

Rio Hondo at Garvey

Rubio Wash at Glendon

Rio Hondo below Whittier Narrows Dam

For your home

Heating 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