Observed 6:15 AM PDT at KCCR

Shell Ridge, CA weather

Clear and 46°8°.

Forecasts agree

Now 46°8°

Clear

Wind: Calm; Up to 5 mph8 km/h through 7 PM
Dew point: 43°6°; Comfortable · up to 51°11° by 3 PM
UV index: 0Low; Moderate 11 AM–5 PM · peak 5
Air quality: 25Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30.06 inHg1018 hPa; Rising slowly · +0.02 inHg+0.8 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Above 60°16° today by 11 AM
High 72°22° today at 3 PM
Below 60°16° tonight after 9 PM
Fog Tuesday from 6 AM

This morningUp to 62°17° by 11 AM · Clear
This afternoonUp to 72°22° by 3 PM · Mostly cloudy
TonightDown to 50°10° by 5 AM · Partly cloudy
Tomorrow morningUp to 62°17° by 11 AM · Clear
Tomorrow afternoonNear 65°18° · Clear
Tomorrow nightDown to 47°8° by 5 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
Sun 7a	Sunny	48°9° (likely 46°8° to 54°12°)	48°9°	0%	0 mph0 km/h, gusts 2 mph3 km/h	78%	8%	0
Sun 8a	Sunny	49°9° (likely 45°7° to 53°12°)	49°9°	0%	1 mph2 km/h from SE, gusts 2 mph3 km/h	79%	11%	0
Sun 9a	Partly sunny	53°12° (likely 50°10° to 57°14°)	53°12°	0%	1 mph2 km/h from SE, gusts 2 mph4 km/h	74%	16%	1
Sun 10a	Partly sunny	59°15° (likely 55°13° to 61°16°)	59°15°	0%	2 mph3 km/h from N, gusts 5 mph8 km/h	68%	24%	2
Sun 11a	Partly sunny	62°17° (likely 60°16° to 65°18°)	63°17°	0%	2 mph3 km/h from N, gusts 5 mph8 km/h	61%	56%	3
Sun 12p	Partly sunny	67°19° (likely 64°18° to 68°20°)	67°19°	0%	3 mph5 km/h from N, gusts 5 mph8 km/h	55%	58%	4
Sun 1p	Cloudy	70°21° (likely 67°19° to 70°21°)	70°21°	0%	3 mph5 km/h from NNW, gusts 7 mph11 km/h	51%	73%	5
Sun 2p	Cloudy	71°22° (likely 70°21° to 71°22°)	71°22°	0%	3 mph5 km/h from NNW, gusts 8 mph13 km/h	48%	80%	5
Sun 3p	Cloudy	72°22° (likely 71°22° to 72°22°)	73°23°	0%	3 mph5 km/h from WNW, gusts 8 mph13 km/h	46%	83%	4
Sun 4p	Cloudy	72°22° (likely 70°21° to 72°22°)	72°22°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	47%	85%	3
Sun 5p	Cloudy	71°22° (likely 68°20° to 71°22°)	71°22°	0%	3 mph5 km/h from WSW, gusts 7 mph12 km/h	46%	88%	1
Sun 6p	Cloudy	68°20° (likely 65°18° to 68°20°)	68°20°	0%	2 mph3 km/h from WSW, gusts 9 mph14 km/h	52%	88%	0
Sun 7p	Cloudy	62°17° (likely 60°16° to 63°17°)	63°17°	0%	2 mph3 km/h from SSW, gusts 9 mph15 km/h	61%	89%	0
Sun 8p	Cloudy	60°16° (likely 58°14° to 60°16°)	60°16°	0%	2 mph3 km/h from SSW, gusts 9 mph14 km/h	68%	90%	0
Sun 9p	Cloudy	57°14° (likely 56°13° to 58°14°)	57°14°	0%	3 mph5 km/h from SSW, gusts 13 mph21 km/h	73%	86%	0
Sun 10p	Mostly clear	56°13° (likely 55°13° to 57°14°)	56°13°	0%	3 mph5 km/h from SSW, gusts 12 mph19 km/h	78%	50%	0
Sun 11p	Clear	55°13° (likely 54°12° to 56°13°)	55°13°	0%	3 mph5 km/h from SSW, gusts 12 mph20 km/h	81%	18%	0
Mon 12a	Clear	54°12° (likely 52°11° to 55°13°)	54°12°	0%	3 mph5 km/h from SSW, gusts 10 mph16 km/h	84%	5%	0
Mon 1a	Clear	53°12° (likely 52°11° to 55°13°)	53°12°	0%	3 mph5 km/h from SSW, gusts 10 mph17 km/h	85%	12%	0
Mon 2a	Mostly clear	52°11° (likely 52°11° to 54°12°)	52°11°	0%	5 mph8 km/h from SSW, gusts 12 mph20 km/h	88%	20%	0
Mon 3a	Clear	52°11° (likely 51°11° to 54°12°)	52°11°	0%	5 mph8 km/h from SSW, gusts 14 mph22 km/h	89%	19%	0
Mon 4a	Mostly clear	51°11° (likely 51°11° to 54°12°)	49°9°	0%	5 mph8 km/h from SSW, gusts 15 mph24 km/h	92%	17%	0
Mon 5a	Clear	50°10° (likely 50°10° to 54°12°)	48°9°	0%	5 mph8 km/h from SSW, gusts 13 mph20 km/h	92%	16%	0
Mon 6a	Clear	50°10° (likely 50°10° to 53°12°)	49°9°	0%	5 mph8 km/h from SSW, gusts 13 mph21 km/h	92%	17%	0
Mon 7a	Sunny	49°9° (likely 49°9° to 52°11°)	48°9°	0%	5 mph8 km/h from SSW, gusts 10 mph15 km/h	96%	21%	0
Mon 8a	Mostly sunny	50°10° (likely 50°10° to 52°11°)	48°9°	0%	6 mph10 km/h from SW, gusts 11 mph17 km/h	95%	19%	0
Mon 9a	Sunny	55°13° (likely 54°12° to 56°13°)	55°13°	0%	6 mph10 km/h from SW, gusts 15 mph25 km/h	89%	8%	1
Mon 10a	Sunny	58°14° (likely 58°14° to 60°16°)	58°14°	0%	6 mph10 km/h from SW, gusts 17 mph27 km/h	82%	14%	2
Mon 11a	Mostly sunny	62°17° (likely 61°16° to 63°17°)	62°17°	0%	8 mph13 km/h from W, gusts 17 mph27 km/h	75%	13%	3
Mon 12p	Sunny	64°18° (likely 64°18° to 65°18°)	64°18°	0%	8 mph13 km/h from W, gusts 17 mph27 km/h	70%	8%	4
Mon 1p	Sunny	66°19° (likely 65°18° to 67°19°)	66°19°	0%	8 mph13 km/h from W, gusts 16 mph26 km/h	66%	8%	5
Mon 2p	Sunny	67°19° (likely 66°19° to 68°20°)	67°19°	0%	9 mph14 km/h from W, gusts 14 mph22 km/h	62%	8%	5
Mon 3p	Sunny	66°19° (likely 66°19° to 69°21°)	66°19°	0%	9 mph14 km/h from W, gusts 13 mph20 km/h	62%	11%	4
Mon 4p	Sunny	65°18° (likely 65°18° to 68°20°)	65°18°	0%	9 mph14 km/h from W, gusts 14 mph23 km/h	63%	16%	3
Mon 5p	Sunny	65°18° (likely 64°18° to 67°19°)	65°18°	0%	7 mph11 km/h from WSW, gusts 14 mph23 km/h	62%	13%	2
Mon 6p	Clear	61°16° (likely 60°16° to 63°17°)	61°16°	0%	7 mph11 km/h from WSW, gusts 17 mph27 km/h	68%	2%	0
Mon 7p	Clear	58°14° (likely 57°14° to 60°16°)	58°14°	0%	7 mph11 km/h from WSW, gusts 15 mph24 km/h	75%	0%	0
Mon 8p	Clear	55°13° (likely 54°12° to 57°14°)	55°13°	0%	5 mph8 km/h from WSW, gusts 9 mph14 km/h	81%	0%	0
Mon 9p	Clear	54°12° (likely 53°12° to 56°13°)	54°12°	0%	5 mph8 km/h from WSW, gusts 9 mph15 km/h	84%	2%	0
Mon 10p	Clear	53°12° (likely 52°11° to 55°13°)	53°12°	0%	5 mph8 km/h from WSW, gusts 9 mph15 km/h	85%	8%	0
Mon 11p	Clear	52°11° (likely 51°11° to 54°12°)	52°11°	0%	3 mph5 km/h from SW, gusts 9 mph14 km/h	85%	12%	0
Tue 12a	Clear	51°11° (likely 50°10° to 53°12°)	51°11°	0%	3 mph5 km/h from SW, gusts 9 mph14 km/h	85%	14%	0
Tue 1a	Clear	50°10° (likely 49°9° to 53°12°)	50°10°	0%	3 mph5 km/h from SW, gusts 9 mph14 km/h	86%	15%	0
Tue 2a	Mostly clear	50°10° (likely 48°9° to 52°11°)	50°10°	0%	2 mph3 km/h from SW, gusts 9 mph14 km/h	87%	17%	0
Tue 3a	Mostly clear	49°9° (likely 48°9° to 52°11°)	49°9°	0%	2 mph3 km/h from SW, gusts 9 mph15 km/h	88%	18%	0
Tue 4a	Mostly clear	48°9° (likely 47°8° to 51°11°)	48°9°	0%	2 mph3 km/h from SW, gusts 9 mph15 km/h	90%	18%	0
Tue 5a	Mostly clear	47°8° (likely 46°8° to 51°11°)	47°8°	0%	2 mph3 km/h from SW, gusts 8 mph14 km/h	92%	18%	0
Tue 6a	Fog	46°8° (likely 44°7° to 51°11°)	46°8°	0%	2 mph3 km/h from SW, gusts 8 mph12 km/h	94%	25%	0

Days ahead

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

Today, Oct 25. Partly sunny. High 73°23°, low 48°9°. Typical 69°21° / 52°11°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Partly sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Official NWS forecast
Today: Mostly sunny. High near 73, with temperatures falling to around 71 in the afternoon. West northwest wind 0 to 5 mph.
Tonight: Partly cloudy. Low around 48, with temperatures rising to around 50 overnight. Southwest wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
71°22°–73°23°
Low, likely
45°7°–53°12°
Typical high / low
69°21° / 52°11°
Wind
7 mph10 km/h, gusts 16 mph26 km/h
UV peak
5
Tomorrow, Oct 26. Mostly sunny. High 68°20°, low 45°7°. Typical 68°20° / 52°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 47°8°
  Dry
Official NWS forecast
Day: Sunny. High near 68, with temperatures falling to around 65 in the afternoon. West southwest wind 5 to 9 mph.
Night: Mostly clear, with a low around 45. West southwest wind 2 to 7 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–69°21°
Low, likely
45°7°–52°11°
Typical high / low
68°20° / 52°11°
Wind
9 mph15 km/h, gusts 26 mph41 km/h
UV peak
5
Tuesday, Oct 27. Fog. High 68°20°, low 46°8°. Typical 68°20° / 51°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 9am. Sunny, with a high near 68. West wind around 5 mph.
Night: Partly cloudy, with a low around 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–68°20°
Low, likely
45°7°–50°10°
Typical high / low
68°20° / 51°11°
Wind
10 mph15 km/h, gusts 23 mph37 km/h
UV peak
5
Wednesday, Oct 28. Fog. High 66°19°, low 47°8°. Typical 68°20° / 51°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog between 7am and 8am. Partly sunny, with a high near 66.
Night: Mostly cloudy, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–69°21°
Low, likely
44°7°–49°9°
Typical high / low
68°20° / 51°11°
Wind
6 mph9 km/h, gusts 16 mph26 km/h
UV peak
5
Thursday, Oct 29. Partly sunny. High 64°18°, low 45°7°. Typical 67°19° / 51°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 64.
Night: Partly cloudy, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–69°21°
Low, likely
45°7°–52°11°
Typical high / low
67°19° / 51°11°
Wind
8 mph12 km/h, gusts 21 mph34 km/h
UV peak
3
Friday, Oct 30. Rain. High 62°17°, low 43°6°. Typical 67°19° / 50°10°. Rain 0.01 in0.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 47°8°
  20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain after 5pm. Mostly sunny, with a high near 62.
Night: A slight chance of rain. Partly cloudy, with a low around 43.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–67°19°
Low, likely
43°6°–50°10°
Typical high / low
67°19° / 50°10°
Wind
11 mph18 km/h, gusts 23 mph36 km/h
UV peak
4
Saturday, Oct 31. Rain. High 62°17°, low 43°6°. Typical 66°19° / 50°10°. Rain 0.05 in1.3 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  30% chance
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 53°12°
  20% chance
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain before 7am, then a chance of rain and patchy fog. Mostly sunny, with a high near 62.
Night: A slight chance of rain before 11pm. Mostly clear, with a low around 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–64°18°
Low, likely
43°6°–49°9°
Typical high / low
66°19° / 50°10°
Wind
8 mph12 km/h, gusts 20 mph32 km/h
UV peak
3
Sunday, Nov 1. Sunny. High 61°16°, low 46°8°. Typical 66°19° / 50°10°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 47°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 45°7°
  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
55°13°–64°18°
Low, likely
40°4°–50°10°
Typical high / low
66°19° / 50°10°
Wind
10 mph16 km/h, gusts 17 mph27 km/h
UV peak
2
Monday, Nov 2. Cloudy. High 64°18°, low 44°7°. Typical 66°19° / 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°10°
  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
62°17°–68°20°
Low, likely
33°1°–49°9°
Typical high / low
66°19° / 50°10°
Wind
8 mph12 km/h
UV peak
4
Tuesday, Nov 3. Cloudy. High 66°19°, low 51°11°. Typical 65°18° / 50°10°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°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
61°16°–71°22°
Low, likely
50°10°–53°12°
Typical high / low
65°18° / 50°10°
Wind
5 mph9 km/h, gusts 11 mph17 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 73°, low 48°.
Tomorrow
Dry, high 68°, low 45°, cooling off.
Tuesday
Dry, high 68°, low 46°.
Rest of week
Mostly dry, highs 61–66°.

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

Rivers

NOAA river gauges within 25 mi

Walnut Creek at Ygnacio Valley Road

1.2 mi

Level: 0.2 ft

Reading from Sun 5:45 AM · NWS gauge page

Tice Creek at Rossmoor Basin

2.9 mi

Level: 0.3 ft

Reading from Sun 5:15 AM · NWS gauge page

Grayson Creek at Taylor Blvd (City Yard)

4.3 mi

Level: 0.1 ft

Reading from Sun 6 AM · NWS gauge page

Walnut Creek at Diamond Blvd Bridge

4.5 mi

Level: 1.9 ft

Reading from Sun 5:15 AM · NWS gauge page

For your home

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

Heating this week

About 59% less heating than a typical week.

This week 16Typical 40

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 2
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at.

Comfort

Dry air outside (dew point 43°F).

Open the windows?

Today, 11:00 AM–8:00 PM

Good stretch to open the windows.

Is this typical?

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

Oct 25, today vs a typical year

Today’s expected high is 4°2° warmer than typical.

Last 7 days vs normal

—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23
—SatOct 24
—SunOct 25

Shell Ridge weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 50 min; Losing 2 min 16 s a day; shortest Dec 21, 1 h 18 min less
Golden hour: 5:40–6:33 PM; Morning 7:10–8:03 AM
Blue hour: 6:33–6:44 PM; Morning 6:59–7:10 AM; first light 6:59 AM

Stars tonight? Fair

Mostly clear 11 PM–7 AM, but the moon is 100% lit and up.

Moon

Waxing gibbous

99% lit · growing

Today: sets 6:57 AM · rises 5:47 PM
Full moon: Today, 9:12 PM
New moon: Nov 8

Looking east from Shell Ridge. The highest point on the skyline is about 3,700 ft, 7 mi away.Skyline from USGS elevation data, heights drawn up to 3.5× taller. Sky, sun and moon as they are now.