Observed 4:45 AM PDT at KONT

Montclair, CA weather

Mostly cloudy and 59°15°, 14°8° colder than a typical Oct 23.

Mostly agree

Now 59°15°

Mostly cloudy

Wind: 3 mph5 km/h; From the north-northeast. Up to 5 mph8 km/h through 5 PM
Dew point: 55°13°; A little sticky
UV index: 0Low; Moderate 12–4 PM · peak 4
Air today: 40Good; EPA forecast · Ozone
Pressure: 29.99 inHg1016 hPa; Steady over the last 3 h

None rain now, through the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 54°12° today at 7 AM
High 68°20° today at 3 PM
Above 60°16° tomorrow by 10 AM

This morningUp to 61°16° by 11 AM · Partly cloudy
This afternoonUp to 68°20° by 3 PM · rain chance 20% · Partly cloudy
TonightDown to 54°12° by 3 AM · rain chance 20% · Clear
Tomorrow morningUp to 67°19° by 11 AM · Clear
Tomorrow afternoonUp to 74°23° by 2 PM · Clear
Tomorrow nightUp to 74°23° by 7 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 5a	Cloudy	55°13° (likely 55°13° to 58°14°)	55°13°	5%	5 mph8 km/h from NE, gusts 4 mph7 km/h	100%	90%	0
Fri 6a	Mostly cloudy	55°13° (likely 55°13° to 58°14°)	55°13°	5%	5 mph8 km/h from NE, gusts 6 mph9 km/h	99%	70%	0
Fri 7a	Partly sunny	54°12° (likely 54°12° to 57°14°)	54°12°	5%	5 mph8 km/h from NE, gusts 7 mph11 km/h	100%	54%	0
Fri 8a	Partly sunny	56°13° (likely 56°13° to 58°14°)	56°13°	5%	5 mph8 km/h from E, gusts 7 mph11 km/h	100%	28%	0
Fri 9a	Partly sunny	57°14° (likely 57°14° to 61°16°)	57°14°	5%	5 mph8 km/h from E, gusts 8 mph13 km/h	100%	26%	0
Fri 10a	Partly sunny	58°14° (likely 58°14° to 63°17°)	58°14°	5%	0 mph0 km/h, gusts 7 mph11 km/h	100%	24%	1
Fri 11a	Partly sunny	61°16° (likely 61°16° to 65°18°)	61°16°	10%	5 mph8 km/h from E, gusts 4 mph6 km/h	94%	33%	2
Fri 12p	Partly sunny	63°17° (likely 63°17° to 67°19°)	63°17°	10%	5 mph8 km/h from E, gusts 4 mph7 km/h	87%	32%	3
Fri 1p	Sunny	64°18° (likely 64°18° to 68°20°)	65°18°	10%	5 mph8 km/h from SE, gusts 5 mph8 km/h	83%	24%	4
Fri 2p	Mostly sunny	66°19° (likely 65°18° to 69°21°)	67°19°	10%	5 mph8 km/h from NW, gusts 7 mph10 km/h	76%	30%	4
Fri 3p	Partly sunny	68°20° (likely 65°18° to 69°21°)	68°20°	10%	5 mph8 km/h from NW, gusts 7 mph11 km/h	73%	41%	3
Fri 4p	Partly sunny	68°20° (likely 64°18° to 69°21°)	68°20°	10%	5 mph8 km/h from NW, gusts 7 mph12 km/h	72%	72%	1
Fri 5p	Cloudy	66°19° (likely 63°17° to 68°20°)	66°19°	20%	5 mph8 km/h from W, gusts 7 mph11 km/h	80%	86%	0
Fri 6p	Showers	65°18° (likely 60°16° to 66°19°)	65°18°	20%	5 mph8 km/h from W, gusts 7 mph11 km/h	83%	71%	0
Fri 7p	Showers	63°17° (likely 58°14° to 63°17°)	63°17°	20%	5 mph8 km/h from W, gusts 11 mph18 km/h	85%	70%	0
Fri 8p	Showers	61°16° (likely 57°14° to 62°17°)	61°16°	20%	5 mph8 km/h from W, gusts 9 mph15 km/h	89%	57%	0
Fri 9p	Clear	60°16° (likely 56°13° to 60°16°)	60°16°	20%	5 mph8 km/h from W, gusts 6 mph9 km/h	93%	20%	0
Fri 10p	Clear	58°14° (likely 55°13° to 59°15°)	58°14°	20%	5 mph8 km/h from NW, gusts 4 mph7 km/h	95%	1%	0
Fri 11p	Clear	58°14° (likely 54°12° to 58°14°)	58°14°	0%	5 mph8 km/h from NW, gusts 3 mph6 km/h	95%	0%	0
Sat 12a	Clear	57°14° (likely 54°12° to 58°14°)	57°14°	0%	5 mph8 km/h from N, gusts 3 mph5 km/h	98%	5%	0
Sat 1a	Clear	55°13° (likely 53°12° to 57°14°)	55°13°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	4%	0
Sat 2a	Clear	55°13° (likely 53°12° to 57°14°)	55°13°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	14%	0
Sat 3a	Clear	54°12° (likely 53°12° to 57°14°)	55°13°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	15%	0
Sat 4a	Clear	54°12° (likely 53°12° to 56°13°)	54°12°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	14%	0
Sat 5a	Clear	54°12° (likely 53°12° to 56°13°)	54°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	99%	7%	0
Sat 6a	Clear	53°12° (likely 52°11° to 56°13°)	53°12°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	2%	0
Sat 7a	Sunny	53°12° (likely 52°11° to 56°13°)	53°12°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	0%	0
Sat 8a	Sunny	55°13° (likely 52°11° to 58°14°)	55°13°	0%	0 mph0 km/h, gusts 4 mph6 km/h	97%	2%	0
Sat 9a	Sunny	59°15° (likely 56°13° to 61°16°)	59°15°	0%	0 mph0 km/h, gusts 5 mph8 km/h	85%	2%	1
Sat 10a	Sunny	63°17° (likely 60°16° to 64°18°)	63°17°	0%	5 mph8 km/h from W, gusts 5 mph8 km/h	73%	1%	3
Sat 11a	Sunny	67°19° (likely 65°18° to 68°20°)	67°19°	0%	5 mph8 km/h from SW, gusts 4 mph7 km/h	64%	2%	4
Sat 12p	Sunny	70°21° (likely 68°20° to 71°22°)	70°21°	0%	5 mph8 km/h from W, gusts 6 mph10 km/h	58%	2%	5
Sat 1p	Sunny	72°22° (likely 70°21° to 73°23°)	72°22°	0%	5 mph8 km/h from W, gusts 7 mph12 km/h	54%	1%	6
Sat 2p	Sunny	74°23° (likely 71°22° to 74°23°)	74°23°	0%	5 mph8 km/h from SW, gusts 8 mph13 km/h	51%	1%	5
Sat 3p	Sunny	74°23° (likely 72°22° to 75°24°)	75°24°	0%	5 mph8 km/h from W, gusts 9 mph14 km/h	51%	1%	4
Sat 4p	Sunny	74°23° (likely 71°22° to 76°24°)	74°23°	0%	5 mph8 km/h from SW, gusts 8 mph13 km/h	53%	0%	3
Sat 5p	Sunny	73°23° (likely 70°21° to 75°24°)	73°23°	0%	5 mph8 km/h from SW, gusts 9 mph14 km/h	56%	0%	2
Sat 6p	Clear	70°21° (likely 67°19° to 71°22°)	70°21°	0%	5 mph8 km/h from SW, gusts 12 mph19 km/h	61%	0%	0
Sat 7p	Clear	74°23° (likely 63°17° to 74°23°)	74°23°	0%	5 mph8 km/h from W, gusts 10 mph17 km/h	52%	0%	0
Sat 8p	Clear	66°19° (likely 60°16° to 66°19°)	66°19°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	66%	0%	0
Sat 9p	Clear	70°21° (likely 58°14° to 70°21°)	70°21°	0%	0 mph0 km/h, gusts 6 mph10 km/h	54%	0%	0
Sat 10p	Clear	69°21° (likely 57°14° to 69°21°)	69°21°	0%	0 mph0 km/h, gusts 5 mph9 km/h	54%	0%	0
Sat 11p	Clear	62°17° (likely 56°13° to 63°17°)	62°17°	0%	0 mph0 km/h, gusts 4 mph6 km/h	68%	0%	0
Sun 12a	Clear	69°21° (likely 54°12° to 69°21°)	69°21°	0%	5 mph8 km/h from N, gusts 3 mph5 km/h	53%	6%	0
Sun 1a	Clear	70°21° (likely 53°12° to 70°21°)	70°21°	0%	5 mph8 km/h from NE, gusts 3 mph5 km/h	51%	0%	0
Sun 2a	Clear	60°16° (likely 52°11° to 67°19°)	60°16°	0%	5 mph8 km/h from NE, gusts 3 mph6 km/h	74%	0%	0
Sun 3a	Clear	67°19° (likely 51°11° to 67°19°)	67°19°	0%	0 mph0 km/h, gusts 4 mph6 km/h	57%	0%	0
Sun 4a	Clear	66°19° (likely 50°10° to 66°19°)	66°19°	0%	0 mph0 km/h, gusts 4 mph7 km/h	57%	0%	0

Days ahead

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

Today, Oct 23. Cloudy. High 69°21°, low 54°12°. Typical 83°28° / 52°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 54°12°
  Dry
Official NWS forecast
Today: A slight chance of rain showers after 5pm. Mostly sunny, with a high near 69. Northeast wind 0 to 5 mph. Chance of precipitation is 20%.
Tonight: Mostly cloudy, with a low around 54. Northeast wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–69°21°
Low, likely
54°12°–57°14°
Typical high / low
83°28° / 52°11°
Wind
8 mph13 km/h, gusts 16 mph26 km/h
UV peak
5
Tomorrow, Oct 24. Sunny. High 75°24°, low 56°13°. Typical 83°28° / 51°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 56°13°
  Dry
Official NWS forecast
Day: Sunny, with a high near 75. West wind 0 to 5 mph.
Night: Mostly clear, with a low around 56. North wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–76°24°
Low, likely
52°11°–56°13°
Typical high / low
83°28° / 51°11°
Wind
7 mph12 km/h, gusts 15 mph25 km/h
UV peak
6
Sunday, Oct 25. Mostly sunny. High 79°26°, low 57°14°. Typical 83°28° / 51°11°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Clear, 67°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 79.
Night: Mostly clear, with a low around 57.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
74°23°–81°27°
Low, likely
51°11°–61°16°
Typical high / low
83°28° / 51°11°
Wind
9 mph14 km/h, gusts 14 mph23 km/h
UV peak
5
Monday, Oct 26. Mostly sunny. High 80°27°, low 57°14°. Typical 83°28° / 51°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 58°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 80°26°
  Dry
3. Evening
  6 PM–midnight
  Clear, 66°19°
  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 80.
Night: Mostly clear, with a low around 57.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
76°24°–82°28°
Low, likely
52°11°–63°17°
Typical high / low
83°28° / 51°11°
Wind
11 mph17 km/h, gusts 20 mph32 km/h
UV peak
5
Tuesday, Oct 27. Mostly sunny. High 78°26°, low 56°13°. Typical 82°28° / 50°10°. 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
  Partly cloudy, 55°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 78.
Night: Partly cloudy, with a low around 56.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–78°26°
Low, likely
50°10°–61°16°
Typical high / low
82°28° / 50°10°
Wind
10 mph16 km/h
UV peak
5
Wednesday, Oct 28. Cloudy. High 76°24°, low 56°13°. Typical 82°28° / 50°10°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 55°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 76.
Night: Mostly cloudy, with a low around 56.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
72°22°–80°27°
Low, likely
49°9°–60°16°
Typical high / low
82°28° / 50°10°
Wind
7 mph11 km/h, gusts 13 mph21 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 72°22°, low 55°13°. Typical 82°28° / 50°10°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 58°14°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 59°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 72.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
69°21°–76°24°
Low, likely
51°11°–60°16°
Typical high / low
82°28° / 50°10°
Wind
9 mph14 km/h, gusts 20 mph32 km/h
UV peak
5
Friday, Oct 30. Cloudy. High 71°22°, low 57°14°. Typical 82°28° / 50°10°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 60°15°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 65°19°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 59°15°
  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
64°18°–76°24°
Low, likely
52°11°–62°17°
Typical high / low
82°28° / 50°10°
Wind
9 mph14 km/h, gusts 17 mph27 km/h
UV peak
4
Saturday, Oct 31. Drizzle. High 65°18°, low 57°14°. Typical 82°28° / 49°9°. Rain 0.81 in21 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 61°16°
  20% chance · 0.03 in0.7 mm
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  20% chance · 0.25 in6.4 mm
3. Evening
  6 PM–midnight
  Drizzle, 63°17°
  30% chance · 0.64 in16 mm
4. Overnight
  midnight–6 AM
  Drizzle, 60°16°
  40% chance · 0.39 in9.9 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
58°14°–70°21°
Low, likely
55°13°–62°17°
Typical high / low
82°28° / 49°9°
Wind
10 mph16 km/h, gusts 15 mph24 km/h
UV peak
1
Sunday, Nov 1. Showers. High 67°19°, low 58°14°. Typical 81°27° / 49°9°. Rain 0.88 in22 mm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Showers, 61°16°
  40% chance · 0.58 in15 mm
2. Afternoon
  noon–6 PM
  Drizzle, 66°19°
  50% chance · 0.11 in2.9 mm
3. Evening
  6 PM–midnight
  Drizzle, 64°18°
  40% chance · 0.09 in2.3 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
64°18°–69°21°
Low, likely
53°12°–62°17°
Typical high / low
81°27° / 49°9°
Wind
12 mph20 km/h, gusts 21 mph34 km/h

10 days15 days30 days

The outlook

Today
Dry, high 69°, low 54°.
Tomorrow
Dry, high 75°, low 56°, warming up.
Sunday
Dry, high 79°, low 57°, warming up.
Rest of week
Highs 65–80°; 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

Live Oak Dam

5.0 mi

Level: 0.0 ft

Reading from Fri 4:01 AM · NWS gauge page

San Antonio Dam

6.0 mi

Level: 0.0 ft

Reading from Fri 3 AM · NWS gauge page

Puddingstone Dam

6.4 mi

Level: 0.2 ft

Reading from Fri 3:10 AM · NWS gauge page

San Dimas Dam

7.0 mi

Level: 0.1 ft

Reading from Fri 3:09 AM · NWS gauge page

For your home

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

Heating this week

This week 8Typical 0

Heating degree days, base 65°F

Comfort

Comfortable, non-humid air (dew point 55°F).

Open the windows?

Today, 11:00 AM–9:00 PM

Good stretch to open the windows.

Is this typical?

Chino Airport · official normals 1991–2020 · records 1998–2026

Oct 23, today vs a typical year

Today’s expected high is 14°8° colder than typical.

Last 7 days vs normal

On average 3°2° warmer than normal (daily mean temperature).

+11°+6°SatOct 17
+4°+2°SunOct 18
+5°+3°MonOct 19
+4°+2°TueOct 20
+2°+1°WedOct 21
−5°−3°ThuOct 22
—FriOct 23

Montclair weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 11 h 4 min; Losing 2 min 2 s a day; shortest Dec 21, 1 h 11 min less
Golden hour: 5:32–6:22 PM; Morning 6:47–7:37 AM
Blue hour: 6:22–6:32 PM; Morning 6:37–6:47 AM; first light 6:37 AM

Stars tonight? Poor

Clouds most of the night (about 80% cover).

Moon

Waxing gibbous

91% lit · growing

Today: sets 4:22 AM · rises 4:35 PM
Full moon: Oct 25
New moon: Nov 8

Looking north from Montclair. The highest point on the skyline is about 9,900 ft, 15 mi away.Skyline from USGS elevation data, heights drawn up to 3× taller. Sky, sun and moon as they are now.