Model estimate for 10:00 PM PDT (no recent station report)

Walnut, CA weather

Clear and 59°15°, 13°7° colder than a typical Oct 23.

Forecasts agree

Now 59°15°

Clear

Wind: 5 mph8 km/h; From the west-southwest. About 5 mph8 km/h through 10 AM
Dew point: 56°13°; A little sticky
Humidity: 90%; Air 59°15°, dew point 56°13° · fog or dew likely
UV tomorrow: 5Moderate; Moderate 10 AM–5 PM · peak 5
Air today: 40Good; EPA forecast · Ozone

None rain now, through the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 54°12° tomorrow at 6 AM
Above 60°16° tomorrow by 9 AM
High 75°24° tomorrow at 3 PM

TonightNear 58°14° · rain chance 20% · Clear
Tomorrow morningUp to 66°19° by 11 AM · Clear
Tomorrow afternoonUp to 75°24° by 3 PM · Clear
Tomorrow nightDown to 57°14° by 3 AM · Clear
Sunday morningUp to 69°21° by 11 AM · Clear
Sunday afternoonUp to 79°26° by 3 PM · Partly cloudy
Sunday nightDown to 63°17° by 9 PM · Clear

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 55°13° to 60°16°)	59°15°	20%	5 mph8 km/h from WSW, gusts 4 mph7 km/h	90%	3%	0
Fri 11p	Clear	59°15° (likely 54°12° to 59°15°)	59°15°	0%	5 mph8 km/h from ENE, gusts 4 mph7 km/h	92%	1%	0
Sat 12a	Clear	59°15° (likely 53°12° to 59°15°)	59°15°	0%	5 mph8 km/h from ENE, gusts 3 mph5 km/h	94%	1%	0
Sat 1a	Clear	59°15° (likely 52°11° to 59°15°)	59°15°	0%	5 mph8 km/h from ENE, gusts 4 mph6 km/h	95%	0%	0
Sat 2a	Clear	56°13° (likely 52°11° to 57°14°)	56°13°	0%	5 mph8 km/h from NE, gusts 4 mph6 km/h	97%	0%	0
Sat 3a	Clear	56°13° (likely 51°11° to 56°13°)	56°13°	0%	5 mph8 km/h from NE, gusts 3 mph6 km/h	98%	0%	0
Sat 4a	Clear	56°13° (likely 51°11° to 56°13°)	56°13°	0%	5 mph8 km/h from NE, gusts 4 mph7 km/h	98%	0%	0
Sat 5a	Clear	56°13° (likely 51°11° to 56°13°)	56°13°	0%	5 mph8 km/h from NNE, gusts 5 mph7 km/h	98%	4%	0
Sat 6a	Clear	54°12° (likely 51°11° to 55°13°)	54°12°	0%	5 mph8 km/h from NNE, gusts 5 mph7 km/h	97%	11%	0
Sat 7a	Sunny	54°12° (likely 51°11° to 54°12°)	54°12°	0%	5 mph8 km/h from NNE, gusts 6 mph10 km/h	96%	14%	0
Sat 8a	Sunny	57°14° (likely 52°11° to 57°14°)	57°14°	0%	5 mph8 km/h from N, gusts 6 mph10 km/h	91%	2%	0
Sat 9a	Sunny	60°16° (likely 57°14° to 61°16°)	60°16°	0%	5 mph8 km/h from N, gusts 6 mph9 km/h	84%	2%	1
Sat 10a	Sunny	63°17° (likely 62°17° to 65°18°)	63°17°	0%	5 mph8 km/h from N, gusts 6 mph10 km/h	72%	2%	3
Sat 11a	Sunny	66°19° (likely 66°19° to 68°20°)	66°19°	0%	5 mph8 km/h from N, gusts 6 mph9 km/h	64%	2%	4
Sat 12p	Sunny	69°21° (likely 69°21° to 71°22°)	69°21°	0%	5 mph8 km/h from N, gusts 7 mph11 km/h	55%	1%	5
Sat 1p	Sunny	72°22° (likely 71°22° to 74°23°)	72°22°	0%	5 mph8 km/h from N, gusts 7 mph11 km/h	53%	1%	5
Sat 2p	Sunny	74°23° (likely 72°22° to 76°24°)	74°23°	0%	5 mph8 km/h from W, gusts 7 mph11 km/h	50%	2%	5
Sat 3p	Sunny	75°24° (likely 73°23° to 77°25°)	75°24°	0%	5 mph8 km/h from W, gusts 7 mph12 km/h	49%	1%	4
Sat 4p	Sunny	75°24° (likely 72°22° to 77°25°)	75°24°	0%	5 mph8 km/h from W, gusts 7 mph12 km/h	51%	1%	3
Sat 5p	Sunny	75°24° (likely 71°22° to 76°24°)	75°24°	0%	0 mph0 km/h, gusts 9 mph15 km/h	50%	0%	2
Sat 6p	Clear	70°21° (likely 67°19° to 73°23°)	70°21°	0%	0 mph0 km/h, gusts 11 mph17 km/h	59%	0%	0
Sat 7p	Clear	66°19° (likely 63°17° to 69°21°)	66°19°	0%	0 mph0 km/h, gusts 9 mph15 km/h	65%	0%	0
Sat 8p	Clear	66°19° (likely 60°16° to 67°19°)	66°19°	0%	5 mph8 km/h from NW, gusts 7 mph11 km/h	70%	0%	0
Sat 9p	Clear	64°18° (likely 58°14° to 65°18°)	64°18°	0%	5 mph8 km/h from NW, gusts 4 mph6 km/h	72%	0%	0
Sat 10p	Clear	64°18° (likely 57°14° to 64°18°)	64°18°	0%	5 mph8 km/h from NW, gusts 4 mph6 km/h	73%	0%	0
Sat 11p	Clear	62°17° (likely 55°13° to 62°17°)	62°17°	0%	5 mph8 km/h from NE, gusts 4 mph7 km/h	76%	0%	0
Sun 12a	Clear	60°16° (likely 54°12° to 60°16°)	60°16°	0%	5 mph8 km/h from NE, gusts 7 mph12 km/h	77%	0%	0
Sun 1a	Clear	59°15° (likely 53°12° to 59°15°)	59°15°	0%	5 mph8 km/h from NE, gusts 8 mph13 km/h	78%	0%	0
Sun 2a	Clear	59°15° (likely 53°12° to 59°15°)	59°15°	0%	5 mph8 km/h from ENE, gusts 9 mph14 km/h	79%	0%	0
Sun 3a	Clear	57°14° (likely 53°12° to 57°14°)	57°14°	0%	5 mph8 km/h from ENE, gusts 8 mph13 km/h	79%	0%	0
Sun 4a	Clear	57°14° (likely 52°11° to 57°14°)	57°14°	0%	5 mph8 km/h from ENE, gusts 8 mph12 km/h	79%	0%	0
Sun 5a	Clear	57°14° (likely 52°11° to 57°14°)	57°14°	0%	5 mph8 km/h from NNE, gusts 7 mph11 km/h	78%	0%	0
Sun 6a	Clear	55°13° (likely 51°11° to 56°13°)	55°13°	0%	5 mph8 km/h from NNE, gusts 6 mph10 km/h	77%	0%	0
Sun 7a	Sunny	55°13° (likely 51°11° to 56°13°)	55°13°	0%	5 mph8 km/h from NNE, gusts 5 mph8 km/h	76%	0%	0
Sun 8a	Sunny	57°14° (likely 53°12° to 58°14°)	57°14°	0%	5 mph8 km/h from NE, gusts 5 mph8 km/h	72%	0%	0
Sun 9a	Sunny	61°16° (likely 58°14° to 63°17°)	61°16°	0%	5 mph8 km/h from NE, gusts 5 mph8 km/h	66%	0%	1
Sun 10a	Sunny	66°19° (likely 64°18° to 69°21°)	66°19°	0%	5 mph8 km/h from NE, gusts 4 mph7 km/h	58%	0%	3
Sun 11a	Sunny	69°21° (likely 69°21° to 72°22°)	69°21°	0%	0 mph0 km/h, gusts 3 mph5 km/h	51%	0%	4
Sun 12p	Sunny	73°23° (likely 73°23° to 75°24°)	73°23°	0%	0 mph0 km/h, gusts 3 mph5 km/h	46%	0%	5
Sun 1p	Sunny	76°24° (likely 75°24° to 77°25°)	76°24°	0%	0 mph0 km/h, gusts 4 mph7 km/h	43%	40%	5
Sun 2p	Sunny	77°25° (likely 76°24° to 79°26°)	77°25°	0%	5 mph8 km/h from W, gusts 6 mph9 km/h	41%	40%	5
Sun 3p	Sunny	79°26° (likely 77°25° to 80°27°)	79°26°	0%	5 mph8 km/h from W, gusts 7 mph11 km/h	40%	35%	4
Sun 4p	Sunny	79°26° (likely 76°24° to 79°26°)	79°26°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	40%	31%	3
Sun 5p	Sunny	78°26° (likely 75°24° to 78°26°)	78°26°	0%	0 mph0 km/h, gusts 9 mph15 km/h	42%	27%	1
Sun 6p	Clear	75°24° (likely 71°22° to 77°25°)	75°24°	0%	0 mph0 km/h, gusts 8 mph13 km/h	47%	3%	0
Sun 7p	Clear	70°21° (likely 65°18° to 74°23°)	70°21°	0%	0 mph0 km/h, gusts 8 mph13 km/h	54%	3%	0
Sun 8p	Clear	66°19° (likely 61°16° to 73°23°)	66°19°	0%	0 mph0 km/h, gusts 5 mph8 km/h	59%	25%	0
Sun 9p	Mostly clear	63°17° (likely 57°14° to 72°22°)	63°17°	0%	0 mph0 km/h, gusts 4 mph6 km/h	63%	46%	0

Days ahead

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

Today, Oct 23. Drizzle. High 69°21°, low 54°12°. Typical 82°28° / 58°14°. Rain 0.06 in1.5 mm, 60% chance. Forecasts agree.
1. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 56°13°
  Dry
Official NWS forecast
Tonight: A slight chance of rain showers before 11pm. Partly cloudy, with a low around 54. Northeast wind around 5 mph. Chance of precipitation is 20%.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
69°21°–70°21°
Low, likely
53°12°–57°14°
Typical high / low
82°28° / 58°14°
Wind
9 mph14 km/h
UV peak
5
Tomorrow, Oct 24. Sunny. High 75°24°, low 55°13°. Typical 82°28° / 58°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Clear, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 57°14°
  Dry
Official NWS forecast
Day: Sunny, with a high near 75. North northwest wind 0 to 5 mph.
Night: Clear, with a low around 55. North wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–77°25°
Low, likely
50°10°–55°13°
Typical high / low
82°28° / 58°14°
Wind
8 mph13 km/h, gusts 14 mph23 km/h
UV peak
5
Sunday, Oct 25. Mostly sunny. High 79°26°, low 57°14°. Typical 82°28° / 58°14°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 79°26°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 57°14°
  Dry
Official NWS forecast
Day: Sunny, with a high near 79. West northwest wind 0 to 5 mph.
Night: Mostly clear, with a low around 57. North northwest wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
77°25°–79°26°
Low, likely
50°10°–57°14°
Typical high / low
82°28° / 58°14°
Wind
8 mph13 km/h, gusts 14 mph23 km/h
UV peak
5
Monday, Oct 26. Mostly sunny. High 81°27°, low 58°14°. Typical 82°28° / 58°14°. Dry. Forecasts 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, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 56°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 81.
Night: Mostly clear, with a low around 58.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
78°26°–81°27°
Low, likely
50°10°–63°17°
Typical high / low
82°28° / 58°14°
Wind
11 mph18 km/h
UV peak
5
Tuesday, Oct 27. Mostly sunny. High 79°26°, low 57°14°. Typical 82°28° / 57°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 76°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 55°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 79.
Night: Partly cloudy, with a low around 57.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
74°23°–79°26°
Low, likely
50°10°–60°16°
Typical high / low
82°28° / 57°14°
Wind
10 mph16 km/h
UV peak
5
Wednesday, Oct 28. Cloudy. High 78°26°, low 57°14°. Typical 82°28° / 57°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 57°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 78.
Night: Mostly cloudy, with a low around 57.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–78°26°
Low, likely
50°10°–60°16°
Typical high / low
82°28° / 57°14°
Wind
7 mph11 km/h, gusts 13 mph21 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 74°23°, low 57°14°. Typical 82°28° / 57°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 59°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 74.
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
69°21°–74°23°
Low, likely
52°11°–61°16°
Typical high / low
82°28° / 57°14°
Wind
12 mph20 km/h, gusts 21 mph33 km/h
UV peak
4
Friday, Oct 30. Showers. High 71°22°, low 58°14°. Typical 81°27° / 57°14°. Rain 0.11 in2.8 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 59°15°
  20% chance · 0.03 in0.8 mm
2. Afternoon
  noon–6 PM
  Partly sunny, 68°20°
  30% chance · 0.02 in0.5 mm
3. Evening
  6 PM–midnight
  Partly cloudy, 62°17°
  30% chance · 0.04 in1 mm
4. Overnight
  midnight–6 AM
  Cloudy, 59°15°
  30% chance · 0.12 in3 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 71.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–71°22°
Low, likely
55°13°–61°16°
Typical high / low
81°27° / 57°14°
Wind
9 mph15 km/h, gusts 21 mph33 km/h
UV peak
4
Saturday, Oct 31. Drizzle. High 67°19°, low 57°14°. Typical 81°27° / 56°13°. Rain 0.28 in7.1 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 59°15°
  30% chance · 0.09 in2.3 mm
2. Afternoon
  noon–6 PM
  Sunny, 67°20°
  40% chance · 0.08 in2.1 mm
3. Evening
  6 PM–midnight
  Mostly clear, 62°17°
  40% chance · 0.02 in0.6 mm
4. Overnight
  midnight–6 AM
  Clear, 57°14°
  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
62°17°–73°23°
Low, likely
53°12°–62°17°
Typical high / low
81°27° / 56°13°
Wind
10 mph16 km/h, gusts 21 mph34 km/h
UV peak
5
Sunday, Nov 1. Cloudy. High 73°23°, low 55°13°. Typical 81°27° / 56°13°. Rain 0.12 in3 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 59°15°
  40% chance
2. Afternoon
  noon–6 PM
  Cloudy, 74°23°
  50% chance
3. Evening
  6 PM–midnight
  Cloudy, 65°18°
  40% chance · 0.16 in4 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
67°19°–82°28°
Low, likely
48°9°–64°18°
Typical high / low
81°27° / 56°13°
Wind
5 mph9 km/h, gusts 12 mph20 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
62% chance of rain, high 69°, low 54°.
Tomorrow
Dry, high 75°, low 55°, warming up.
Sunday
Dry, high 79°, low 57°, warming up.
Rest of week
Highs 67–81°; chance of precipitation on Saturday.

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

Walnut Creek

3.8 mi

Level: 0.1 ft

Reading from Fri 8:30 PM · NWS gauge page

Puddingstone Dam

4.6 mi

Level: 0.1 ft

Reading from Fri 8:10 PM · NWS gauge page

Big Dalton Wash

6.7 mi

Level: 0.1 ft

Reading from Fri 8:30 PM · NWS gauge page

San Gabriel River below Santa Fe Dam

8.3 mi

Level: 6.1 ft

Reading from Fri 8:15 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 56°F).

Open the windows?

Sat, 9:00 AM–12:00 AM

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

Is this typical?

ANAHEIM · official normals 1991–2020 · records 1989–2026

Oct 23, today vs a typical year

Today’s expected high is 13°7° colder than typical.

Last 7 days vs normal

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

Walnut 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: 5:33–6:23 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? Good

Clear 10:21 PM–6:38 AM; moon 96% lit, sets 5:26 AM.

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 Walnut. The highest point on the skyline is about 11,400 ft, 59 mi away.Skyline from USGS elevation data, heights drawn up to 4.5× taller. Sky, sun and moon as they are now.