Observed 5:55 AM PDT at KSJC

Campbell, CA weather

Clear and 48°9°.

Mostly agree

Now 48°9°

Clear

Wind: Calm; Up to 5 mph8 km/h through 6 PM
Dew point: 45°7°; Comfortable
UV index: 0Low; Moderate 11 AM–4 PM · peak 5
Air quality: 32Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30.04 inHg1017 hPa; Steady over the last 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 tomorrow night from 5 AM

This morningUp to 63°17° by 11 AM · Clear
This afternoonUp to 72°22° by 3 PM · Clear
TonightDown to 50°10° by 5 AM · Clear
Tomorrow morningUp to 67°19° by 11 AM · Partly cloudy
Tomorrow afternoonUp to 75°24° by 3 PM · Mostly cloudy
Tomorrow nightDown to 48°9° by 5 AM · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 6a	Clear	47°8° (likely 47°8° to 54°12°)	47°8°	0%	2 mph3 km/h from WSW, gusts 7 mph11 km/h	79%	0%	0
Sat 7a	Sunny	47°8° (likely 47°8° to 54°12°)	46°8°	0%	3 mph5 km/h from WSW, gusts 7 mph11 km/h	77%	0%	0
Sat 8a	Sunny	48°9° (likely 48°9° to 55°13°)	47°8°	0%	3 mph5 km/h from WSW, gusts 7 mph11 km/h	74%	0%	0
Sat 9a	Sunny	54°12° (likely 54°12° to 58°14°)	54°12°	0%	3 mph5 km/h from NW, gusts 7 mph11 km/h	67%	0%	0
Sat 10a	Sunny	58°14° (likely 58°14° to 63°17°)	58°14°	0%	2 mph3 km/h from NW, gusts 10 mph16 km/h	60%	0%	1
Sat 11a	Sunny	63°17° (likely 62°17° to 66°19°)	63°17°	0%	3 mph5 km/h from NW, gusts 11 mph18 km/h	51%	0%	3
Sat 12p	Sunny	67°19° (likely 64°18° to 68°20°)	67°19°	0%	2 mph3 km/h from NNW, gusts 10 mph17 km/h	48%	0%	4
Sat 1p	Sunny	69°21° (likely 66°19° to 71°22°)	69°21°	0%	3 mph5 km/h from NNW, gusts 9 mph14 km/h	46%	0%	5
Sat 2p	Sunny	70°21° (likely 68°20° to 73°23°)	70°21°	0%	3 mph5 km/h from NNW, gusts 8 mph13 km/h	46%	0%	4
Sat 3p	Sunny	72°22° (likely 69°21° to 74°23°)	72°22°	0%	5 mph8 km/h from NNW, gusts 8 mph13 km/h	46%	0%	3
Sat 4p	Sunny	71°22° (likely 69°21° to 74°23°)	71°22°	0%	5 mph8 km/h from NNW, gusts 8 mph12 km/h	46%	0%	2
Sat 5p	Sunny	70°21° (likely 68°20° to 72°22°)	71°22°	0%	5 mph8 km/h from NNW, gusts 7 mph12 km/h	46%	0%	2
Sat 6p	Clear	68°20° (likely 64°18° to 68°20°)	68°20°	0%	2 mph3 km/h from NNW, gusts 7 mph11 km/h	54%	0%	1
Sat 7p	Clear	63°17° (likely 60°16° to 63°17°)	63°17°	0%	0 mph0 km/h, gusts 8 mph12 km/h	60%	0%	0
Sat 8p	Clear	61°16° (likely 57°14° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 5 mph9 km/h	64%	0%	0
Sat 9p	Clear	59°15° (likely 55°13° to 60°16°)	59°15°	0%	0 mph0 km/h, gusts 4 mph6 km/h	65%	0%	0
Sat 10p	Clear	58°14° (likely 54°12° to 59°15°)	58°14°	0%	1 mph2 km/h from SSW, gusts 4 mph6 km/h	65%	0%	0
Sat 11p	Clear	56°13° (likely 53°12° to 58°14°)	56°13°	0%	1 mph2 km/h from SSW, gusts 4 mph6 km/h	66%	0%	0
Sun 12a	Clear	55°13° (likely 52°11° to 58°14°)	55°13°	0%	2 mph3 km/h from S, gusts 4 mph7 km/h	69%	0%	0
Sun 1a	Clear	54°12° (likely 51°11° to 57°14°)	54°12°	0%	2 mph3 km/h from S, gusts 4 mph6 km/h	69%	0%	0
Sun 2a	Clear	53°12° (likely 51°11° to 57°14°)	53°12°	0%	2 mph3 km/h from SSE, gusts 4 mph6 km/h	70%	0%	0
Sun 3a	Clear	52°11° (likely 50°10° to 57°14°)	52°11°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	71%	0%	0
Sun 4a	Clear	51°11° (likely 49°9° to 56°13°)	51°11°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	73%	40%	0
Sun 5a	Partly cloudy	50°10° (likely 49°9° to 56°13°)	50°10°	0%	1 mph2 km/h from SSW, gusts 4 mph6 km/h	75%	50%	0
Sun 6a	Mostly clear	49°9° (likely 49°9° to 56°13°)	49°9°	0%	1 mph2 km/h from SSW, gusts 3 mph5 km/h	77%	23%	0
Sun 7a	Partly sunny	49°9° (likely 48°9° to 55°13°)	49°9°	0%	1 mph2 km/h from SSW, gusts 4 mph6 km/h	77%	58%	0
Sun 8a	Partly sunny	50°10° (likely 47°8° to 56°13°)	50°10°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	77%	68%	0
Sun 9a	Partly sunny	55°13° (likely 53°12° to 60°16°)	55°13°	0%	1 mph2 km/h from SE, gusts 2 mph4 km/h	71%	65%	1
Sun 10a	Partly sunny	62°17° (likely 56°13° to 64°18°)	62°17°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	62%	57%	2
Sun 11a	Cloudy	67°19° (likely 61°16° to 68°20°)	67°19°	0%	1 mph2 km/h from NNW, gusts 4 mph7 km/h	54%	59%	3
Sun 12p	Cloudy	71°22° (likely 66°19° to 71°22°)	71°22°	0%	1 mph2 km/h from NNW, gusts 6 mph10 km/h	50%	60%	4
Sun 1p	Partly sunny	73°23° (likely 70°21° to 73°23°)	73°23°	0%	1 mph2 km/h from NNW, gusts 8 mph13 km/h	47%	75%	4
Sun 2p	Cloudy	74°23° (likely 72°22° to 74°23°)	74°23°	0%	3 mph5 km/h from WNW, gusts 8 mph12 km/h	46%	80%	4
Sun 3p	Cloudy	75°24° (likely 72°22° to 75°24°)	75°24°	0%	3 mph5 km/h from WNW, gusts 7 mph12 km/h	46%	80%	4
Sun 4p	Cloudy	74°23° (likely 68°20° to 74°23°)	74°23°	0%	3 mph5 km/h from WNW, gusts 8 mph13 km/h	46%	78%	3
Sun 5p	Cloudy	73°23° (likely 65°18° to 73°23°)	73°23°	0%	3 mph5 km/h from NW, gusts 8 mph13 km/h	49%	76%	2
Sun 6p	Cloudy	70°21° (likely 62°17° to 70°21°)	70°21°	0%	3 mph5 km/h from NW, gusts 7 mph11 km/h	57%	79%	0
Sun 7p	Cloudy	66°19° (likely 59°15° to 66°19°)	66°19°	0%	3 mph5 km/h from NW, gusts 8 mph12 km/h	65%	82%	0
Sun 8p	Mostly clear	61°16° (likely 57°14° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 9 mph14 km/h	71%	80%	0
Sun 9p	Clear	59°15° (likely 55°13° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 7 mph11 km/h	75%	40%	0
Sun 10p	Mostly clear	57°14° (likely 53°12° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 7 mph11 km/h	77%	28%	0
Sun 11p	Clear	56°13° (likely 52°11° to 58°14°)	56°13°	0%	2 mph3 km/h from SSW, gusts 6 mph10 km/h	79%	27%	0
Mon 12a	Clear	54°12° (likely 50°10° to 60°16°)	54°12°	0%	2 mph3 km/h from SSW, gusts 6 mph10 km/h	82%	14%	0
Mon 1a	Clear	53°12° (likely 49°9° to 58°14°)	53°12°	0%	2 mph3 km/h from SSW, gusts 7 mph11 km/h	84%	12%	0
Mon 2a	Clear	52°11° (likely 48°9° to 57°14°)	52°11°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	87%	13%	0
Mon 3a	Clear	50°10° (likely 47°8° to 57°14°)	50°10°	0%	1 mph2 km/h from S, gusts 6 mph10 km/h	90%	18%	0
Mon 4a	Mostly clear	49°9° (likely 46°8° to 56°13°)	49°9°	0%	1 mph2 km/h from S, gusts 5 mph9 km/h	93%	25%	0
Mon 5a	Fog	48°9° (likely 46°8° to 56°13°)	48°9°	0%	1 mph2 km/h from S, gusts 5 mph7 km/h	95%	27%	0

Days ahead

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

Today, Oct 24. Sunny. High 73°23°, low 48°9°. Typical 74°23° / 51°11°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Official NWS forecast
Today: Sunny. High near 73, with temperatures falling to around 70 in the afternoon. West northwest wind around 5 mph.
Tonight: Mostly clear. Low around 48, with temperatures rising to around 50 overnight. South wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Best day outdoors this week: the one dry, mild day the forecasts agree on (high 73°23°).
High, likely
69°21°–74°23°
Low, likely
47°8°–54°12°
Typical high / low
74°23° / 51°11°
Wind
7 mph12 km/h, gusts 21 mph33 km/h
UV peak
5
Tomorrow, Oct 25. Fog. High 76°24°, low 46°8°. Typical 74°23° / 51°11°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Partly sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Official NWS forecast
Day: Mostly sunny. High near 76, with temperatures falling to around 73 in the afternoon. West wind around 3 mph.
Night: Patchy fog after 5am. Partly cloudy, with a low around 46. West southwest wind 0 to 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
72°22°–76°24°
Low, likely
46°8°–53°12°
Typical high / low
74°23° / 51°11°
Wind
8 mph13 km/h, gusts 15 mph24 km/h
UV peak
4
Monday, Oct 26. Fog. High 71°22°, low 45°7°. Typical 73°23° / 50°10°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 51°10°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 9am. Sunny, with a high near 71. West northwest wind 1 to 9 mph.
Night: Patchy fog after 5am. Mostly clear, with a low around 45.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
66°19°–71°22°
Low, likely
45°7°–54°12°
Typical high / low
73°23° / 50°10°
Wind
9 mph15 km/h, gusts 24 mph38 km/h
UV peak
5
Tuesday, Oct 27. Fog. High 70°21°, low 47°8°. Typical 73°23° / 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 49°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 9am. Mostly sunny, with a high near 70.
Night: Partly cloudy, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
46°8°–52°11°
Typical high / low
73°23° / 50°10°
Wind
9 mph15 km/h, gusts 17 mph28 km/h
UV peak
5
Wednesday, Oct 28. Fog. High 71°22°, low 48°9°. Typical 73°23° / 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 54°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 9am. Mostly sunny, with a high near 71.
Night: Patchy fog after 5am. Mostly cloudy, with a low around 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–71°22°
Low, likely
46°8°–53°12°
Typical high / low
73°23° / 50°10°
Wind
10 mph15 km/h
UV peak
4
Thursday, Oct 29. Rain. High 68°20°, low 48°9°. Typical 72°22° / 50°10°. Rain 0.01 in0.3 mm, 20% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 10am, then a slight chance of rain. Partly sunny, with a high near 68.
Night: A chance of rain. Partly cloudy, with a low around 48.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–68°20°
Low, likely
48°9°–54°12°
Typical high / low
72°22° / 50°10°
Wind
10 mph16 km/h, gusts 16 mph25 km/h
UV peak
4
Friday, Oct 30. Rain. High 66°19°, low 47°8°. Typical 72°22° / 50°10°. Rain 0.02 in0.5 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  20% chance
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Partly sunny, with a high near 66.
Night: A chance of rain. Mostly cloudy, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–66°19°
Low, likely
46°8°–50°10°
Typical high / low
72°22° / 50°10°
Wind
9 mph15 km/h, gusts 21 mph33 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 63°17°, low 46°8°. Typical 72°22° / 49°9°. Rain 0.03 in0.8 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 48°9°
  20% chance
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  30% chance · 0.02 in0.5 mm
3. Evening
  6 PM–midnight
  Clear, 55°13°
  20% chance
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  20% 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
61°16°–68°20°
Low, likely
38°3°–53°12°
Typical high / low
72°22° / 49°9°
Wind
8 mph13 km/h, gusts 17 mph28 km/h
UV peak
4
Sunday, Nov 1. Sunny. High 65°18°, low 45°7°. Typical 72°22° / 49°9°. Rain 0.01 in0.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  20% chance
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
60°16°–70°21°
Low, likely
36°2°–52°11°
Typical high / low
72°22° / 49°9°
Wind
9 mph14 km/h, gusts 24 mph38 km/h
UV peak
4
Monday, Nov 2. Cloudy. High 64°18°, low 51°11°. Typical 71°22° / 49°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–66°19°
Low, likely
46°8°–61°16°
Typical high / low
71°22° / 49°9°
Wind
5 mph9 km/h, gusts 21 mph33 km/h
UV peak
1

10 days15 days30 days

The outlook

Today
Dry, high 73°, low 48°.
Tomorrow
Dry, high 76°, low 46°, warming up.
Monday
Dry, high 71°, low 45°, cooling off.
Rest of week
Mostly dry, highs 63–71°.

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

Smith Creek abv Elam Ave

1.2 mi

Level: 1.0 ft

Reading from Sat 5:30 AM · NWS gauge page

Los Gatos Creek at Kirk Dam Weir

1.4 mi

Level: 1.2 ft
Flow: 6 cfs

Reading from Sat 5:35 AM · NWS gauge page

San Tomas Aquino Creek above Williams Road

1.9 mi

Below flood stage

Level: 0.8 ft

Reading from Sat 5:31 AM · NWS gauge page

Los Gatos Creek at Lark Avenue

2.1 mi

Below flood stage

Level: 1.7 ft
Flow: 32 cfs

Reading from Sat 5:45 AM · NWS gauge page

For your home

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

Heating this week

About 42% less heating than a typical week.

This week 14Typical 24

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 1
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 45°F).

Open the windows?

Today, 11:00 AM–8:00 PM

Good stretch to open the windows.

Is this typical?

San Jose · official normals 1991–2020 · records 1893–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

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

+1°±0°SunOct 18
±0°MonOct 19
−2°−1°TueOct 20
±0°WedOct 21
−3°−2°ThuOct 22
—FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 54 min; Losing 2 min 16 s a day; shortest Dec 21, 1 h 19 min less
Golden hour: 5:42–6:35 PM; Morning 7:08–8:00 AM
Blue hour: 6:35–6:45 PM; Morning 6:57–7:08 AM; first light 6:57 AM

Stars tonight? Unknown

Cloud forecast not available for tonight.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:46 AM · rises 5:18 PM
Full moon: Oct 25
New moon: Nov 8

Looking south from Campbell. The highest point on the skyline is about 3,700 ft, 13 mi away.Skyline from USGS elevation data, heights drawn up to 5× taller. Sky, sun and moon as they are now.