Model estimate for 11:00 AM PDT (no recent station report)

South Monrovia Island, CA weather

Sunny and 68°20°.

Mostly agree

Now 68°20°

Sunny

Wind: 5 mph8 km/h; From the north. About 5 mph8 km/h through 11 PM
Dew point: 54°12°; Comfortable
UV index: 4Moderate; Moderate until 5 PM · peak 5
Air quality: 34Good; Main pollutant: Ozone

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

High 77°25° today at 4 PM
Below 70°21° tonight after 6 PM
Low 56°13° tomorrow at 7 AM
Above 70°21° tomorrow by 11 AM

This afternoonUp to 77°25° by 4 PM · Clear
TonightDown to 59°15° by 3 AM · Clear
Tomorrow morningUp to 72°22° by 11 AM · Clear
Tomorrow afternoonUp to 81°27° by 3 PM · Partly cloudy
Tomorrow nightDown to 66°19° by 5 AM · Partly cloudy
Monday morningUp to 68°20° by 10 AM · Clear

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 11a	Sunny	68°20° (likely 68°20° to 71°22°)	68°20°	0%	5 mph8 km/h from N, gusts 5 mph8 km/h	60%	1%	4
Sat 12p	Sunny	70°21° (likely 70°21° to 75°24°)	70°21°	0%	5 mph8 km/h from N, gusts 6 mph9 km/h	54%	0%	5
Sat 1p	Sunny	73°23° (likely 73°23° to 78°26°)	73°23°	0%	5 mph8 km/h from N, gusts 7 mph12 km/h	51%	0%	5
Sat 2p	Sunny	76°24° (likely 75°24° to 80°27°)	76°24°	0%	5 mph8 km/h from WSW, gusts 9 mph14 km/h	47%	1%	5
Sat 3p	Sunny	76°24° (likely 75°24° to 81°27°)	76°24°	0%	5 mph8 km/h from WSW, gusts 10 mph15 km/h	47%	1%	4
Sat 4p	Sunny	77°25° (likely 75°24° to 81°27°)	77°25°	0%	5 mph8 km/h from WSW, gusts 9 mph15 km/h	49%	7%	3
Sat 5p	Sunny	75°24° (likely 73°23° to 79°26°)	75°24°	0%	5 mph8 km/h from WSW, gusts 10 mph16 km/h	46%	1%	2
Sat 6p	Clear	69°21° (likely 69°21° to 74°23°)	69°21°	0%	5 mph8 km/h from WSW, gusts 11 mph17 km/h	52%	1%	0
Sat 7p	Clear	67°19° (likely 65°18° to 71°22°)	67°19°	0%	5 mph8 km/h from WSW, gusts 9 mph15 km/h	56%	0%	0
Sat 8p	Clear	67°19° (likely 61°16° to 68°20°)	67°19°	0%	5 mph8 km/h from W, gusts 6 mph10 km/h	63%	0%	0
Sat 9p	Clear	66°19° (likely 59°15° to 66°19°)	66°19°	0%	5 mph8 km/h from W, gusts 5 mph7 km/h	67%	0%	0
Sat 10p	Clear	64°18° (likely 57°14° to 64°18°)	64°18°	0%	5 mph8 km/h from W, gusts 4 mph7 km/h	68%	0%	0
Sat 11p	Clear	64°18° (likely 56°13° to 64°18°)	64°18°	0%	5 mph8 km/h from ENE, gusts 5 mph8 km/h	69%	1%	0
Sun 12a	Clear	62°17° (likely 55°13° to 62°17°)	62°17°	0%	5 mph8 km/h from ENE, gusts 8 mph13 km/h	71%	1%	0
Sun 1a	Clear	61°16° (likely 55°13° to 61°16°)	61°16°	0%	5 mph8 km/h from ENE, gusts 6 mph10 km/h	71%	0%	0
Sun 2a	Clear	61°16° (likely 54°12° to 61°16°)	61°16°	0%	5 mph8 km/h from ENE, gusts 7 mph11 km/h	72%	0%	0
Sun 3a	Clear	59°15° (likely 53°12° to 60°16°)	59°15°	0%	5 mph8 km/h from ENE, gusts 8 mph13 km/h	73%	0%	0
Sun 4a	Clear	59°15° (likely 53°12° to 61°16°)	59°15°	0%	5 mph8 km/h from ENE, gusts 7 mph12 km/h	73%	0%	0
Sun 5a	Clear	59°15° (likely 52°11° to 60°16°)	59°15°	0%	5 mph8 km/h from ENE, gusts 7 mph11 km/h	75%	0%	0
Sun 6a	Clear	58°14° (likely 52°11° to 60°16°)	58°14°	0%	5 mph8 km/h from ENE, gusts 6 mph10 km/h	74%	0%	0
Sun 7a	Sunny	56°13° (likely 51°11° to 59°15°)	56°13°	0%	5 mph8 km/h from ENE, gusts 4 mph6 km/h	77%	0%	0
Sun 8a	Sunny	60°16° (likely 53°12° to 60°16°)	60°16°	0%	5 mph8 km/h from E, gusts 5 mph8 km/h	71%	0%	0
Sun 9a	Sunny	63°17° (likely 60°16° to 67°19°)	63°17°	0%	5 mph8 km/h from E, gusts 5 mph8 km/h	67%	0%	1
Sun 10a	Sunny	67°19° (likely 67°19° to 71°22°)	67°19°	0%	5 mph8 km/h from E, gusts 4 mph6 km/h	55%	0%	3
Sun 11a	Sunny	72°22° (likely 72°22° to 74°23°)	72°22°	0%	5 mph8 km/h from WSW, gusts 3 mph5 km/h	48%	2%	4
Sun 12p	Sunny	74°23° (likely 74°23° to 77°25°)	74°23°	0%	5 mph8 km/h from WSW, gusts 3 mph6 km/h	43%	23%	5
Sun 1p	Sunny	76°24° (likely 76°24° to 79°26°)	76°24°	0%	5 mph8 km/h from WSW, gusts 4 mph7 km/h	40%	40%	5
Sun 2p	Sunny	79°26° (likely 78°26° to 81°27°)	79°26°	0%	5 mph8 km/h from WSW, gusts 6 mph9 km/h	37%	40%	5
Sun 3p	Sunny	81°27° (likely 78°26° to 82°28°)	80°27°	0%	5 mph8 km/h from WSW, gusts 7 mph11 km/h	38%	40%	4
Sun 4p	Sunny	81°27° (likely 77°25° to 82°28°)	81°27°	0%	5 mph8 km/h from WSW, gusts 9 mph14 km/h	39%	40%	3
Sun 5p	Sunny	80°27° (likely 75°24° to 80°27°)	80°27°	0%	5 mph8 km/h from W, gusts 12 mph19 km/h	39%	40%	1
Sun 6p	Mostly clear	76°24° (likely 72°22° to 76°24°)	76°24°	0%	5 mph8 km/h from W, gusts 11 mph18 km/h	45%	46%	0
Sun 7p	Cloudy	73°23° (likely 68°20° to 73°23°)	73°23°	0%	5 mph8 km/h from W, gusts 8 mph12 km/h	53%	72%	0
Sun 8p	Cloudy	72°22° (likely 64°18° to 72°22°)	72°22°	0%	5 mph8 km/h from WNW, gusts 5 mph8 km/h	58%	79%	0
Sun 9p	Cloudy	72°22° (likely 61°16° to 72°22°)	72°22°	0%	5 mph8 km/h from WNW, gusts 4 mph7 km/h	62%	81%	0
Sun 10p	Cloudy	71°22° (likely 58°14° to 71°22°)	71°22°	0%	5 mph8 km/h from WNW, gusts 4 mph6 km/h	65%	81%	0
Sun 11p	Cloudy	70°21° (likely 57°14° to 70°21°)	70°21°	0%	5 mph8 km/h from NNE, gusts 5 mph7 km/h	67%	78%	0
Mon 12a	Cloudy	70°21° (likely 56°13° to 70°21°)	70°21°	0%	5 mph8 km/h from NNE, gusts 5 mph9 km/h	69%	73%	0
Mon 1a	Mostly clear	68°20° (likely 55°13° to 68°20°)	68°20°	0%	5 mph8 km/h from NNE, gusts 5 mph8 km/h	71%	64%	0
Mon 2a	Partly cloudy	68°20° (likely 55°13° to 68°20°)	68°20°	0%	5 mph8 km/h from NE, gusts 6 mph10 km/h	73%	43%	0
Mon 3a	Clear	67°19° (likely 54°12° to 67°19°)	67°19°	0%	5 mph8 km/h from NE, gusts 6 mph9 km/h	74%	2%	0
Mon 4a	Clear	67°19° (likely 52°11° to 67°19°)	67°19°	0%	5 mph8 km/h from NE, gusts 4 mph6 km/h	75%	31%	0
Mon 5a	Mostly clear	66°19° (likely 52°11° to 66°19°)	66°19°	0%	5 mph8 km/h from NE, gusts 4 mph7 km/h	76%	27%	0
Mon 6a	Mostly clear	62°17° (likely 49°9° to 68°20°)	62°17°	0%	5 mph8 km/h from NE, gusts 5 mph8 km/h	76%	9%	0
Mon 7a	Sunny	58°14° (likely 48°9° to 68°20°)	58°14°	0%	5 mph8 km/h from NE, gusts 5 mph8 km/h	74%	1%	0
Mon 8a	Sunny	57°14° (likely 50°10° to 69°21°)	57°14°	0%	0 mph0 km/h, gusts 5 mph8 km/h	70%	0%	0
Mon 9a	Sunny	61°16° (likely 59°15° to 70°21°)	61°16°	0%	0 mph0 km/h, gusts 5 mph8 km/h	61%	0%	1
Mon 10a	Sunny	68°20° (likely 68°20° to 72°22°)	68°20°	0%	0 mph0 km/h, gusts 4 mph6 km/h	51%	0%	3

Days ahead

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

Today, Oct 24. Sunny. High 78°26°, low 56°13°. Typical 78°26° / 58°14°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Sunny, 77°25°
  Dry
2. Evening
  6 PM–midnight
  Clear, 67°19°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 59°15°
  Dry
Official NWS forecast
Today: Sunny, with a high near 78. Northwest wind around 5 mph.
Tonight: Mostly clear, with a low around 56. West wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–81°27°
Low, likely
51°11°–57°14°
Typical high / low
78°26° / 58°14°
Wind
9 mph14 km/h, gusts 15 mph25 km/h
UV peak
5
Tomorrow, Oct 25. Cloudy. High 81°27°, low 57°14°. 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
  Cloudy, 72°22°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 66°19°
  Dry
Official NWS forecast
Day: Sunny, with a high near 81. North northwest wind around 5 mph.
Night: Mostly clear, with a low around 57. North northwest wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
78°26°–82°28°
Low, likely
51°11°–59°15°
Typical high / low
78°26° / 58°14°
Wind
9 mph15 km/h, gusts 16 mph26 km/h
UV peak
5
Monday, Oct 26. Mostly sunny. High 82°28°, low 57°14°. Typical 77°25° / 58°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 81°27°
  Dry
3. Evening
  6 PM–midnight
  Clear, 66°19°
  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 82. Northeast wind 0 to 5 mph.
Night: Mostly clear, with a low around 57.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
78°26°–82°28°
Low, likely
51°11°–61°16°
Typical high / low
77°25° / 58°14°
Wind
11 mph17 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. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 58°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 78°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 67°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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
74°23°–81°27°
Low, likely
49°9°–63°17°
Typical high / low
77°25° / 58°14°
Wind
8 mph12 km/h, gusts 14 mph23 km/h
UV peak
5
Wednesday, Oct 28. Partly sunny. High 80°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
  Partly sunny, 77°25°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 61°16°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 80.
Night: Mostly cloudy, with a low around 58.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–80°27°
Low, likely
53°12°–62°17°
Typical high / low
77°25° / 58°14°
Wind
9 mph14 km/h
UV peak
5
Thursday, Oct 29. Cloudy. High 75°24°, low 57°14°. Typical 77°25° / 57°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 61°16°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Partly 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 75.
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
70°21°–75°24°
Low, likely
57°14°–63°17°
Typical high / low
77°25° / 57°14°
Wind
10 mph17 km/h, gusts 19 mph31 km/h
UV peak
5
Friday, Oct 30. Showers. High 72°22°, low 55°13°. Typical 77°25° / 57°14°. Rain 0.05 in1.3 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 62°16°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 70°21°
  20% chance
3. Evening
  6 PM–midnight
  Partly cloudy, 64°18°
  20% chance
4. Overnight
  midnight–6 AM
  Drizzle, 60°16°
  20% chance · 0.03 in0.8 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 72.
Night: A chance of rain showers. Mostly cloudy, with a low around 55.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–72°22°
Low, likely
55°13°–63°17°
Typical high / low
77°25° / 57°14°
Wind
11 mph17 km/h, gusts 16 mph25 km/h
UV peak
4
Saturday, Oct 31. Drizzle. High 69°21°, low 58°14°. Typical 77°25° / 57°14°. Rain 0.09 in2.3 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 61°16°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 69°21°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  30% chance
4. Overnight
  midnight–6 AM
  Cloudy, 56°13°
  30% 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°–72°22°
Low, likely
54°12°–63°17°
Typical high / low
77°25° / 57°14°
Wind
9 mph15 km/h, gusts 20 mph32 km/h
UV peak
4
Sunday, Nov 1. Drizzle. High 73°23°, low 54°12°. Typical 76°24° / 57°14°. Rain 0.09 in2.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 58°14°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 74°23°
  30% chance
3. Evening
  6 PM–midnight
  Clear, 63°17°
  30% chance · 0.08 in1.9 mm
4. Overnight
  midnight–6 AM
  Rain, 54°12°
  30% chance · 0.14 in3.7 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
66°19°–81°27°
Low, likely
46°8°–64°18°
Typical high / low
76°24° / 57°14°
Wind
8 mph13 km/h, gusts 25 mph40 km/h
UV peak
2
Monday, Nov 2. Cloudy. High 70°21°, low 54°12°. Typical 76°24° / 56°13°. Rain 0.21 in5.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 61°16°
  20% chance · 0.04 in1 mm
2. Afternoon
  noon–6 PM
  Cloudy, 69°21°
  20% chance · 0.02 in0.6 mm
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  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 differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
65°18°–76°24°
Low, likely
46°8°–64°18°
Typical high / low
76°24° / 56°13°
Wind
15 mph23 km/h, gusts 28 mph45 km/h
UV peak
1

10 days15 days30 days

The outlook

Today
Dry, high 78°, low 56°.
Tomorrow
Dry, high 81°, low 57°, warming up.
Monday
Dry, high 82°, low 57°.
Rest of week
Mostly dry, highs 69–81°.

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

San Gabriel River below Santa Fe Dam

1.7 mi

Level: 6.2 ft

Reading from Sat 9:15 AM · NWS gauge page

Arcadia Wash at Grand

2.9 mi

Below flood stage

Level: 0.2 ft

Reading from Sat 10 AM · NWS gauge page

Big Dalton Wash

3.8 mi

Level: 0.2 ft

Reading from Sat 10:30 AM · NWS gauge page

Santa Anita Dam

4.4 mi

Level: 0.0 ft

Reading from Sat 9:59 AM · NWS gauge page

For your home

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

Cooling this week

About 48% less cooling than a typical week.

This week 9Typical 18

Cooling degree days, base 65°F

Comfort

Dry air outside (dew point 54°F).

Open the windows?

Today, 12:00 PM–2:00 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 24, today vs a typical year

Today’s expected high is about typical for the date.

Last 7 days vs normal

On average 2°1° warmer than normal (daily mean temperature).

+8°+4°SunOct 18
+5°+3°MonOct 19
+5°+3°TueOct 20
−1°WedOct 21
−3°−2°ThuOct 22
−3°−2°FriOct 23
—SatOct 24

South Monrovia Island weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 11 h 2 min; Losing 2 min 2 s a day; shortest Dec 21, 1 h 9 min less
Golden hour: 5:32–6:22 PM; Morning 6:49–7:39 AM
Blue hour: 6:22–6:32 PM; Morning 6:39–6:49 AM; first light 6:39 AM

Stars tonight? Fair

Clear 6:32 PM–6:40 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:27 AM · rises 5:05 PM
Full moon: Oct 25
New moon: Nov 8

Looking northeast from South Monrovia Island. The highest point on the skyline is about 11,400 ft, 66 mi away.Skyline from USGS elevation data, heights drawn up to 3× taller. Sky, sun and moon as they are now.