Observed 3:30 AM PDT at KCCR

Antioch, CA weather

Overcast and 55°13°.

Mostly agree

Now 55°13°

Cloudy

Wind: 5 mph7 km/h; From the west. Up to 12 mph19 km/h through 4 PM
Dew point: 54°12°; Comfortable
Humidity: 94%; Air 55°13°, dew point 54°12° · fog or dew likely
UV index: 0Low; Moderate 12–4 PM · peak 3
Air quality: 38Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30 inHg1016 hPa; Rising slowly · +0.03 inHg+1.0 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (57°14° then, 57°14° now)

Good hours for

Low 56°13° today at 7 AM
High 70°21° today at 3 PM

TonightNear 57°14° · Mostly cloudy
This morningNear 59°15° · Cloudy
This afternoonUp to 70°21° by 3 PM · Partly cloudy
TonightDown to 54°12° by 5 AM · Clear
Tomorrow morningUp to 61°16° by 11 AM · Clear
Tomorrow afternoonUp to 73°23° by 4 PM · Clear
Tomorrow nightDown to 55°13° by 3 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
Fri 4a	Partly cloudy	57°14° (likely 53°12° to 57°14°)	57°14°	0%	1 mph2 km/h from WSW, gusts 5 mph8 km/h	86%	62%	0
Fri 5a	Mostly cloudy	57°14° (likely 53°12° to 57°14°)	57°14°	0%	1 mph2 km/h from W, gusts 7 mph12 km/h	87%	62%	0
Fri 6a	Partly cloudy	57°14° (likely 53°12° to 57°14°)	57°14°	0%	1 mph2 km/h from W, gusts 6 mph9 km/h	89%	58%	0
Fri 7a	Partly sunny	56°13° (likely 53°12° to 56°13°)	56°13°	0%	2 mph3 km/h from WNW, gusts 6 mph9 km/h	91%	73%	0
Fri 8a	Cloudy	57°14° (likely 54°12° to 57°14°)	57°14°	0%	2 mph3 km/h from WNW, gusts 6 mph9 km/h	94%	97%	0
Fri 9a	Cloudy	58°14° (likely 56°13° to 58°14°)	58°14°	0%	3 mph5 km/h from NW, gusts 8 mph14 km/h	94%	99%	0
Fri 10a	Cloudy	60°16° (likely 58°14° to 60°16°)	60°16°	0%	6 mph10 km/h from NNW, gusts 12 mph20 km/h	99%	97%	0
Fri 11a	Mostly cloudy	60°16° (likely 59°15° to 61°16°)	60°16°	0%	8 mph13 km/h from N, gusts 14 mph22 km/h	97%	92%	1
Fri 12p	Partly sunny	64°18° (likely 62°17° to 64°18°)	64°18°	0%	10 mph16 km/h from N, gusts 14 mph23 km/h	87%	89%	3
Fri 1p	Partly sunny	66°19° (likely 63°17° to 66°19°)	66°19°	0%	12 mph19 km/h from N, gusts 16 mph25 km/h	78%	48%	3
Fri 2p	Mostly sunny	68°20° (likely 65°18° to 68°20°)	68°20°	0%	12 mph19 km/h from N, gusts 17 mph27 km/h	68%	51%	3
Fri 3p	Mostly sunny	70°21° (likely 66°19° to 70°21°)	70°21°	0%	12 mph19 km/h from N, gusts 17 mph28 km/h	58%	33%	3
Fri 4p	Sunny	70°21° (likely 66°19° to 70°21°)	70°21°	0%	12 mph19 km/h from NNW, gusts 17 mph28 km/h	50%	6%	2
Fri 5p	Sunny	70°21° (likely 65°18° to 70°21°)	70°21°	0%	9 mph14 km/h from NNW, gusts 18 mph28 km/h	45%	0%	2
Fri 6p	Clear	68°20° (likely 63°17° to 68°20°)	68°20°	0%	6 mph10 km/h from NW, gusts 15 mph24 km/h	47%	0%	1
Fri 7p	Clear	63°17° (likely 59°15° to 64°18°)	63°17°	0%	3 mph5 km/h from WNW, gusts 10 mph16 km/h	49%	0%	0
Fri 8p	Clear	61°16° (likely 56°13° to 61°16°)	61°16°	0%	2 mph3 km/h from WNW, gusts 9 mph15 km/h	47%	0%	0
Fri 9p	Clear	60°16° (likely 55°13° to 60°16°)	60°16°	0%	2 mph3 km/h from W, gusts 9 mph15 km/h	49%	0%	0
Fri 10p	Clear	60°16° (likely 54°12° to 60°16°)	60°16°	0%	2 mph3 km/h from W, gusts 11 mph18 km/h	51%	0%	0
Fri 11p	Clear	59°15° (likely 54°12° to 59°15°)	59°15°	0%	3 mph5 km/h from W, gusts 11 mph18 km/h	52%	0%	0
Sat 12a	Clear	59°15° (likely 54°12° to 59°15°)	59°15°	0%	3 mph5 km/h from W, gusts 11 mph17 km/h	50%	0%	0
Sat 1a	Clear	58°14° (likely 53°12° to 58°14°)	58°14°	0%	2 mph3 km/h from W, gusts 9 mph15 km/h	50%	0%	0
Sat 2a	Clear	56°13° (likely 53°12° to 56°13°)	57°14°	0%	3 mph5 km/h from WNW, gusts 8 mph13 km/h	50%	0%	0
Sat 3a	Clear	56°13° (likely 53°12° to 56°13°)	56°13°	0%	3 mph5 km/h from WNW, gusts 8 mph13 km/h	50%	0%	0
Sat 4a	Clear	55°13° (likely 53°12° to 55°13°)	55°13°	0%	2 mph3 km/h from NW, gusts 7 mph11 km/h	50%	0%	0
Sat 5a	Clear	54°12° (likely 53°12° to 55°13°)	54°12°	0%	3 mph5 km/h from NNW, gusts 5 mph9 km/h	47%	0%	0
Sat 6a	Clear	54°12° (likely 52°11° to 54°12°)	54°12°	0%	3 mph5 km/h from NNW, gusts 6 mph9 km/h	50%	0%	0
Sat 7a	Sunny	53°12° (likely 51°11° to 54°12°)	53°12°	0%	3 mph5 km/h from NNW, gusts 7 mph11 km/h	52%	0%	0
Sat 8a	Sunny	53°12° (likely 50°10° to 55°13°)	53°12°	0%	3 mph5 km/h from N, gusts 7 mph11 km/h	53%	0%	0
Sat 9a	Sunny	56°13° (likely 53°12° to 57°14°)	56°13°	0%	3 mph5 km/h from N, gusts 9 mph14 km/h	53%	0%	1
Sat 10a	Sunny	59°15° (likely 57°14° to 60°16°)	59°15°	0%	3 mph5 km/h from N, gusts 13 mph20 km/h	50%	0%	2
Sat 11a	Sunny	61°16° (likely 61°16° to 63°17°)	61°16°	0%	6 mph10 km/h from N, gusts 13 mph21 km/h	47%	0%	3
Sat 12p	Sunny	65°18° (likely 64°18° to 66°19°)	65°18°	0%	6 mph10 km/h from N, gusts 11 mph17 km/h	45%	0%	4
Sat 1p	Sunny	69°21° (likely 66°19° to 69°21°)	69°21°	0%	6 mph10 km/h from N, gusts 10 mph16 km/h	42%	0%	5
Sat 2p	Sunny	70°21° (likely 68°20° to 70°21°)	71°22°	0%	2 mph3 km/h from N, gusts 8 mph13 km/h	41%	0%	5
Sat 3p	Sunny	72°22° (likely 68°20° to 72°22°)	72°22°	0%	2 mph3 km/h from N, gusts 7 mph11 km/h	39%	1%	4
Sat 4p	Sunny	73°23° (likely 69°21° to 73°23°)	73°23°	0%	2 mph3 km/h from N, gusts 6 mph9 km/h	39%	1%	3
Sat 5p	Sunny	72°22° (likely 68°20° to 72°22°)	72°22°	0%	2 mph3 km/h from NNW, gusts 6 mph9 km/h	39%	8%	2
Sat 6p	Clear	70°21° (likely 65°18° to 70°21°)	70°21°	0%	2 mph3 km/h from NNW, gusts 4 mph7 km/h	45%	35%	1
Sat 7p	Clear	65°18° (likely 62°17° to 65°18°)	65°18°	0%	2 mph3 km/h from NNW, gusts 3 mph6 km/h	49%	3%	0
Sat 8p	Clear	61°16° (likely 58°14° to 62°17°)	61°16°	0%	0 mph0 km/h, gusts 5 mph8 km/h	52%	0%	0
Sat 9p	Clear	59°15° (likely 56°13° to 60°16°)	59°15°	0%	0 mph0 km/h, gusts 4 mph6 km/h	54%	0%	0
Sat 10p	Clear	58°14° (likely 54°12° to 59°15°)	58°14°	0%	0 mph0 km/h, gusts 3 mph6 km/h	55%	0%	0
Sat 11p	Clear	58°14° (likely 53°12° to 59°15°)	58°14°	0%	0 mph0 km/h, gusts 3 mph5 km/h	57%	1%	0
Sun 12a	Clear	57°14° (likely 52°11° to 59°15°)	57°14°	0%	0 mph0 km/h, gusts 3 mph5 km/h	59%	1%	0
Sun 1a	Clear	56°13° (likely 50°10° to 58°14°)	56°13°	0%	0 mph0 km/h, gusts 3 mph5 km/h	61%	2%	0
Sun 2a	Clear	56°13° (likely 49°9° to 57°14°)	56°13°	0%	0 mph0 km/h, gusts 2 mph4 km/h	63%	10%	0
Sun 3a	Clear	55°13° (likely 47°8° to 56°13°)	55°13°	0%	0 mph0 km/h, gusts 2 mph4 km/h	64%	8%	0

Days ahead

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

Today, Oct 23. Drizzle. High 71°22°, low 55°13°. Typical 69°21° / 52°11°. Rain 0.01 in0.3 mm, 0% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 54°12°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 71. Northwest wind 1 to 12 mph, with gusts as high as 22 mph.
Tonight: Partly cloudy. Low around 55, with temperatures rising to around 57 overnight. West wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–71°22°
Low, likely
52°11°–56°13°
Typical high / low
69°21° / 52°11°
Wind
14 mph23 km/h, gusts 24 mph39 km/h
UV peak
4
Tomorrow, Oct 24. Sunny. High 73°23°, low 51°11°. Typical 69°21° / 52°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 51°11°
  Dry
Official NWS forecast
Day: Sunny, with a high near 73. North wind 2 to 6 mph.
Night: Clear, with a low around 51. North northwest wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–73°23°
Low, likely
50°10°–53°12°
Typical high / low
69°21° / 52°11°
Wind
9 mph14 km/h, gusts 17 mph27 km/h
UV peak
5
Sunday, Oct 25. Mostly sunny. High 74°23°, low 53°12°. Typical 69°21° / 52°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 74.
Night: Mostly clear, with a low around 53.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–74°23°
Low, likely
45°7°–53°12°
Typical high / low
69°21° / 52°11°
Wind
7 mph12 km/h
UV peak
5
Monday, Oct 26. Mostly sunny. High 72°22°, low 50°10°. Typical 68°20° / 52°11°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 71°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 72.
Night: Mostly clear, with a low around 50.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
66°19°–73°23°
Low, likely
47°8°–54°12°
Typical high / low
68°20° / 52°11°
Wind
14 mph22 km/h, gusts 20 mph33 km/h
UV peak
5
Tuesday, Oct 27. Mostly sunny. High 69°21°, low 51°11°. Typical 68°20° / 51°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 49°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 69.
Night: Partly cloudy, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–69°21°
Low, likely
45°7°–51°11°
Typical high / low
68°20° / 51°11°
Wind
7 mph12 km/h, gusts 17 mph27 km/h
UV peak
5
Wednesday, Oct 28. Partly sunny. High 69°21°, low 52°11°. Typical 68°20° / 51°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 51°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 69.
Night: Partly cloudy, with a low around 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–69°21°
Low, likely
45°7°–52°11°
Typical high / low
68°20° / 51°11°
Wind
9 mph14 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 68°20°, low 50°10°. Typical 67°19° / 51°11°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 68.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
63°17°–69°21°
Low, likely
48°9°–52°11°
Typical high / low
67°19° / 51°11°
Wind
11 mph18 km/h
UV peak
4
Friday, Oct 30. Sunny. High 67°19°, low 49°9°. Typical 67°19° / 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–70°21°
Low, likely
45°7°–55°13°
Typical high / low
67°19° / 50°10°
Wind
6 mph9 km/h, gusts 15 mph24 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 64°18°, low 51°11°. Typical 66°19° / 50°10°. Rain 0.14 in3.6 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 53°12°
  30% chance · 0.07 in1.8 mm
2. Afternoon
  noon–6 PM
  Cloudy, 65°18°
  30% chance · 0.04 in0.9 mm
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  30% chance · 0.03 in0.8 mm
4. Overnight
  midnight–6 AM
  Cloudy, 54°12°
  20% 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
58°14°–69°21°
Low, likely
44°7°–55°13°
Typical high / low
66°19° / 50°10°
Wind
5 mph9 km/h, gusts 13 mph22 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 67°19°, low 53°12°. Typical 66°19° / 50°10°. Rain 0.51 in13 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  20% chance · 0.25 in6.4 mm
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  20% chance · 0.05 in1.4 mm
3. Evening
  6 PM–midnight
  Partly cloudy, 61°16°
  20% chance · 0.02 in0.6 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
65°18°–70°21°
Low, likely
49°9°–59°15°
Typical high / low
66°19° / 50°10°
Wind
8 mph12 km/h, gusts 19 mph31 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 71°, low 55°.
Tomorrow
Dry, high 73°, low 51°.
Sunday
Dry, high 74°, low 53°.
Rest of week
Mostly dry, highs 64–72°.

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

For your home

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

Heating this week

About 72% less heating than a typical week.

This week 10Typical 36

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 54°F).

Open the windows?

Today, 10:00 AM–10:00 PM

Good stretch to open the windows.

Is this typical?

MOUNT DIABLO JUNCTION · official normals 1991–2020 · records 1952–2026

Oct 23, today vs a typical year

Today’s expected high is 2°1° warmer than typical.

Last 7 days vs normal

—SatOct 17
—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23

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

Sun & moon

Sun

Daylight: 10 h 55 min; Losing 2 min 16 s a day; shortest Dec 21, 1 h 23 min less
Golden hour: 5:42–6:35 PM; Morning 7:07–8:00 AM
Blue hour: 6:35–6:45 PM; Morning 6:56–7:07 AM; first light 6:56 AM

Stars tonight? Poor

Clouds most of the night (about 61% cover).

Moon

Waxing gibbous

91% lit · growing

Today: sets 4:39 AM · rises 4:50 PM
Full moon: Oct 25
New moon: Nov 8

Looking southwest from Antioch. The highest point on the skyline is about 4,000 ft, 37 mi away.Skyline from USGS elevation data, heights drawn up to 5× taller. Sky, sun and moon as they are now.