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Current weather in Hillsborough is broken clouds.

Where can I find the hourly weather forecast for Hillsborough?

This page shows hourly weather forecast for Hillsborough, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Hillsborough updated regularly?

Weather data for Hillsborough is updated regularly with the latest available observations and forecasts.

Now · 6:59 AM

Hillsborough Weather & Hourly Forecast

United States · California · 94010

57°F

Mostly cloudy night

Feels like: 55°F

💧 Humidity 95% 🌡 Pressure 29.91 inHg 💨 Wind 7 mph 👁 Visibility 1.8 mi ☁ Clouds 80% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Hillsborough

Today

7:00 AM

Mostly cloudy

57° 💧 None 💨 7 mph H 95%29.91 inHg

10:00 AM

Mostly sunny

63° 💧 None 💨 11 mph H 74%29.97 inHg

1:00 PM

Sunny

66° 💧 None 💨 12 mph H 65%30.00 inHg

4:00 PM

Sunny

65° 💧 None 💨 13 mph H 67%29.97 inHg

7:00 PM

Sunny

61° 💧 None 💨 11 mph H 76%29.97 inHg

10:00 PM

Clear night

60° 💧 None 💨 12 mph H 85%30.03 inHg

Tomorrow

1:00 AM

Clear night

59° 💧 None 💨 11 mph H 84%30.03 inHg

4:00 AM

Clear night

58° 💧 None 💨 11 mph H 86%30.03 inHg

7:00 AM

Sunny

58° 💧 None 💨 10 mph H 91%30.03 inHg

10:00 AM

Sunny

63° 💧 None 💨 11 mph H 73%30.06 inHg

1:00 PM

Sunny

66° 💧 None 💨 14 mph H 66%30.06 inHg

4:00 PM

Mostly sunny

65° 💧 None 💨 15 mph H 70%30.00 inHg

7:00 PM

Sunny

60° 💧 None 💨 13 mph H 84%29.97 inHg

10:00 PM

Clear night

59° 💧 None 💨 8 mph H 88%30.00 inHg

Monday

1:00 AM

Mostly cloudy night

57° 💧 None 💨 4 mph H 94%29.97 inHg

4:00 AM

Mostly cloudy night

55° 💧 None 💨 2 mph H 97%29.94 inHg

Today

7:00 AM

Mostly cloudy

57° 💧 None 💨 7 mph H 95%29.91 inHg

8:00 AM

Partly cloudy

59° 💧 None 💨 7 mph H 86%29.94 inHg

9:00 AM

Mostly cloudy

62° 💧 None 💨 9 mph H 79%29.97 inHg

10:00 AM

Mostly sunny

63° 💧 None 💨 11 mph H 74%29.97 inHg

11:00 AM

Sunny

65° 💧 None 💨 11 mph H 69%29.97 inHg

12:00 PM

Sunny

66° 💧 None 💨 11 mph H 66%30.00 inHg

1:00 PM

Sunny

66° 💧 None 💨 12 mph H 65%30.00 inHg

2:00 PM

Sunny

66° 💧 None 💨 13 mph H 65%29.97 inHg

3:00 PM

Sunny

66° 💧 None 💨 13 mph H 66%29.97 inHg

4:00 PM

Sunny

65° 💧 None 💨 13 mph H 67%29.97 inHg

5:00 PM

Sunny

64° 💧 None 💨 12 mph H 68%29.97 inHg

6:00 PM

Sunny

63° 💧 None 💨 12 mph H 71%29.97 inHg

7:00 PM

Sunny

61° 💧 None 💨 11 mph H 76%29.97 inHg

8:00 PM

Clear night

60° 💧 None 💨 12 mph H 81%29.97 inHg

9:00 PM

Clear night

60° 💧 None 💨 12 mph H 83%30.00 inHg

10:00 PM

Clear night

60° 💧 None 💨 12 mph H 85%30.03 inHg

11:00 PM

Clear night

59° 💧 None 💨 11 mph H 86%30.03 inHg

Tomorrow

12:00 AM

Clear night

59° 💧 None 💨 11 mph H 86%30.03 inHg

1:00 AM

Clear night

59° 💧 None 💨 11 mph H 84%30.03 inHg

2:00 AM

Clear night

59° 💧 None 💨 10 mph H 83%30.03 inHg

3:00 AM

Mostly clear night

58° 💧 None 💨 11 mph H 85%30.03 inHg

4:00 AM

Clear night

58° 💧 None 💨 11 mph H 86%30.03 inHg

5:00 AM

Clear night

58° 💧 None 💨 11 mph H 90%30.03 inHg

6:00 AM

Clear night

58° 💧 None 💨 11 mph H 92%30.03 inHg

7:00 AM

Sunny

58° 💧 None 💨 10 mph H 91%30.03 inHg

8:00 AM

Sunny

59° 💧 None 💨 10 mph H 85%30.06 inHg

9:00 AM

Sunny

61° 💧 None 💨 11 mph H 78%30.06 inHg

10:00 AM

Sunny

63° 💧 None 💨 11 mph H 73%30.06 inHg

11:00 AM

Sunny

64° 💧 None 💨 12 mph H 69%30.06 inHg

12:00 PM

Sunny

65° 💧 None 💨 13 mph H 67%30.06 inHg

1:00 PM

Sunny

66° 💧 None 💨 14 mph H 66%30.06 inHg

2:00 PM

Sunny

66° 💧 None 💨 15 mph H 65%30.03 inHg

3:00 PM

Sunny

66° 💧 None 💨 15 mph H 67%30.03 inHg

4:00 PM

Mostly sunny

65° 💧 None 💨 15 mph H 70%30.00 inHg

5:00 PM

Mostly sunny

64° 💧 None 💨 14 mph H 74%30.00 inHg

6:00 PM

Sunny

62° 💧 None 💨 14 mph H 79%29.97 inHg

7:00 PM

Sunny

60° 💧 None 💨 13 mph H 84%29.97 inHg

8:00 PM

Clear night

60° 💧 None 💨 13 mph H 85%29.97 inHg

9:00 PM

Clear night

59° 💧 None 💨 11 mph H 86%30.00 inHg

10:00 PM

Clear night

59° 💧 None 💨 8 mph H 88%30.00 inHg

11:00 PM

Clear night

58° 💧 None 💨 7 mph H 90%30.00 inHg

Monday

12:00 AM

Mostly clear night

57° 💧 None 💨 6 mph H 92%29.97 inHg

1:00 AM

Mostly cloudy night

57° 💧 None 💨 4 mph H 94%29.97 inHg

2:00 AM

Mostly cloudy night

56° 💧 None 💨 3 mph H 95%29.97 inHg

3:00 AM

Partly cloudy night

55° 💧 None 💨 3 mph H 96%29.97 inHg

4:00 AM

Mostly cloudy night

55° 💧 None 💨 2 mph H 97%29.94 inHg

5:00 AM

Mostly clear night

54° 💧 None 💨 2 mph H 98%29.94 inHg

6:00 AM

Mostly clear night

54° 💧 None 💨 3 mph H 99%29.94 inHg

7:00 AM

Mist

53° 💧 None 💨 3 mph H 99%29.94 inHg

8:00 AM

Mist

55° 💧 None 💨 3 mph H 98%29.97 inHg

9:00 AM

Sunny

60° 💧 None 💨 2 mph H 87%29.97 inHg

10:00 AM

Sunny

64° 💧 None 💨 2 mph H 71%29.97 inHg

11:00 AM

Sunny

68° 💧 None 💨 3 mph H 59%29.97 inHg

12:00 PM

Sunny

70° 💧 None 💨 5 mph H 54%29.94 inHg

1:00 PM

Sunny

70° 💧 None 💨 8 mph H 55%29.94 inHg

2:00 PM

Sunny

68° 💧 None 💨 9 mph H 58%29.91 inHg

3:00 PM

Mostly sunny

68° 💧 None 💨 10 mph H 62%29.91 inHg

4:00 PM

Mostly sunny

66° 💧 None 💨 11 mph H 66%29.91 inHg

5:00 PM

Sunny

65° 💧 None 💨 10 mph H 70%29.88 inHg

Tuesday

2:00 AM

Mostly clear night

55° 💧 None 💨 5 mph H 95%29.88 inHg

5:00 AM

Mostly cloudy night

54° 💧 None 💨 5 mph H 97%29.88 inHg

8:00 AM

Partly cloudy

57° 💧 None 💨 4 mph H 91%29.91 inHg

11:00 AM

Mostly sunny

67° 💧 None 💨 2 mph H 65%29.94 inHg

2:00 PM

Sunny

71° 💧 None 💨 7 mph H 56%29.91 inHg

5:00 PM

Mostly sunny

68° 💧 None 💨 7 mph H 62%29.88 inHg

8:00 PM

Mostly clear night

60° 💧 None 💨 4 mph H 82%29.91 inHg

11:00 PM

Mostly clear night

57° 💧 None 💨 3 mph H 96%29.91 inHg

Wednesday

2:00 AM

Partly cloudy night

55° 💧 None 💨 3 mph H 96%29.91 inHg

5:00 AM

Partly cloudy night

55° 💧 None 💨 3 mph H 95%29.91 inHg

8:00 AM

Partly cloudy

58° 💧 None 💨 4 mph H 88%29.94 inHg

11:00 AM

Mostly sunny

66° 💧 None 💨 6 mph H 66%29.97 inHg

2:00 PM

Mostly sunny

70° 💧 None 💨 9 mph H 58%29.94 inHg

5:00 PM

Mostly sunny

67° 💧 None 💨 9 mph H 64%29.94 inHg

8:00 PM

Mostly clear night

60° 💧 None 💨 6 mph H 83%29.97 inHg

11:00 PM

Partly cloudy night

58° 💧 None 💨 2 mph H 94%30.00 inHg

Thursday

2:00 AM

Mostly clear night

56° 💧 None 💨 2 mph H 96%30.00 inHg

5:00 AM

Partly cloudy night

55° 💧 None 💨 2 mph H 99%30.00 inHg

8:00 AM

Partly cloudy

56° 💧 None 💨 2 mph H 95%30.06 inHg

11:00 AM

Mostly sunny

64° 💧 None 💨 2 mph H 69%30.06 inHg

2:00 PM

Sunny

71° 💧 None 💨 5 mph H 56%30.03 inHg

5:00 PM

Sunny

70° 💧 None 💨 7 mph H 58%30.03 inHg

8:00 PM

Clear night

61° 💧 None 💨 4 mph H 80%30.06 inHg

11:00 PM

Clear night

57° 💧 None 💨 2 mph H 94%30.09 inHg

Friday

5:00 AM

Clear night

57° 💧 None 💨 3 mph H 95%30.09 inHg

11:00 AM

Overcast

55° 💧 None 💨 2 mph H 98%30.09 inHg

5:00 PM

Mostly sunny

66° 💧 None 💨 3 mph H 68%30.09 inHg

11:00 PM

Mostly clear night

68° 💧 None 💨 8 mph H 62%30.03 inHg

Saturday

5:00 AM

Mostly clear night

58° 💧 None 💨 4 mph H 94%30.06 inHg

11:00 AM

Mostly cloudy

56° 💧 None 💨 4 mph H 97%30.03 inHg

5:00 PM

Mostly sunny

67° 💧 None 💨 4 mph H 65%30.03 inHg

11:00 PM

Partly cloudy night

68° 💧 None 💨 7 mph H 59%29.97 inHg

Sunday

5:00 AM

Clear night

58° 💧 None 💨 4 mph H 91%29.97 inHg

11:00 AM

Mostly cloudy

55° 💧 None 💨 3 mph H 95%29.94 inHg

5:00 PM

Mostly sunny

71° 💧 None 💨 2 mph H 56%29.94 inHg

11:00 PM

Partly cloudy night

72° 💧 None 💨 7 mph H 51%29.88 inHg

Monday

5:00 AM

Mostly clear night

62° 💧 None 💨 4 mph H 77%29.91 inHg

11:00 AM

Sunny

57° 💧 None 💨 2 mph H 95%29.88 inHg

5:00 PM

Partly cloudy

70° 💧 None 💨 6 mph H 57%29.94 inHg

11:00 PM

Clear night

68° 💧 None 💨 9 mph H 61%29.91 inHg

Tuesday

5:00 AM

Partly cloudy night

59° 💧 None 💨 4 mph H 92%29.94 inHg

11:00 AM

Overcast

59° 💧 None 💨 3 mph H 91%29.94 inHg

5:00 PM

Mostly cloudy

65° 💧 None 💨 3 mph H 70%29.97 inHg

11:00 PM

Mostly clear night

66° 💧 None 💨 6 mph H 67%29.94 inHg

Wednesday

5:00 AM

Partly cloudy night

58° 💧 None 💨 3 mph H 95%29.97 inHg

11:00 AM

Mostly cloudy

57° 💧 None 💨 2 mph H 96%29.94 inHg

5:00 PM

Mostly sunny

66° 💧 None 💨 2 mph H 72%29.97 inHg

11:00 PM

Clear night

69° 💧 None 💨 7 mph H 66%29.91 inHg

Thursday

5:00 AM

Mostly clear night

58° 💧 None 💨 2 mph H 97%29.94 inHg

11:00 AM

Mostly cloudy

55° 💧 None 💨 1 mph H 97%29.94 inHg

5:00 PM

Mostly sunny

68° 💧 None 💨 3 mph H 67%29.97 inHg

11:00 PM

Clear night

74° 💧 None 💨 6 mph H 55%29.94 inHg

Friday

5:00 AM

Mostly clear night

60° 💧 None 💨 1 mph H 92%30.00 inHg

11:00 AM

Mostly sunny

57° 💧 None 💨 1 mph H 96%30.00 inHg

5:00 PM

Mostly sunny

69° 💧 None 💨 3 mph H 65%30.03 inHg

11:00 PM

Clear night

75° 💧 None 💨 6 mph H 51%29.97 inHg

Saturday

5:00 AM

Mostly clear night

60° 💧 None 💨 2 mph H 91%30.00 inHg

11:00 AM

Mostly sunny

58° 💧 None 💨 2 mph H 94%29.97 inHg

5:00 PM

Sunny

68° 💧 None 💨 3 mph H 62%30.00 inHg

11:00 PM

Clear night

73° 💧 None 💨 6 mph H 56%29.94 inHg

In Hillsborough and, more broadly, across the state of California: This morning, clear skies will bring very hot conditions, with temperatures starting around 64 degrees and rising to near 95 degrees by afternoon. The day will be characterized by a noticeable northwest wind, which could reach speeds of up to 20 mph, with gusts potentially hitting 40 mph. The wind may bring brief breezes but is unlikely to significantly affect outdoor activities. No precipitation is expected throughout the day, so dry weather will persist. As the temperature climbs into the mid-90s, it’s important to stay hydrated and take precautions against heat exhaustion if spending extended periods outdoors. The strong northwest winds could cause some minor debris to blow around, so caution is advised when driving or walking in exposed areas. Overall, expect a hot, breezy day with clear skies and dry conditions.

15-Day Weather Outlook for Hillsborough

TomorrowTomorrow

Mostly sunny 66°/58° 💧 None 💨 15 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 70°/53° 💧 None 💨 14 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 71°/54° 💧 None 💨 10 mph

Wednesday, Sep 16Wed Sep 16

Partly cloudy 70°/55° 💧 0.000 in 💨 9 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 71°/55° 💧 0.000 in 💨 9 mph

Friday, Sep 18Fri Sep 18

Overcast 70°/55° 💧 None 💨 7 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 68°/56° 💧 None 💨 8 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 68°/55° 💧 None 💨 7 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 72°/57° 💧 None 💨 7 mph

Tuesday, Sep 22Tue Sep 22

Overcast 70°/59° 💧 0.074 in 💨 9 mph

Wednesday, Sep 23Wed Sep 23

Mostly cloudy 66°/57° 💧 0.010 in 💨 6 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 69°/55° 💧 None 💨 7 mph

Friday, Sep 25Fri Sep 25

Mostly sunny 74°/57° 💧 None 💨 6 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 75°/58° 💧 None 💨 6 mph

Sunday, Sep 27Sun Sep 27

Sunny 73°/68° 💧 0.001 in 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Hillsborough

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Hillsborough

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 7:00 AM

PM2.5 Fine particles Good 5,3µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Fair 20,9µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 95,5µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,6µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Hillsborough

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 8,1Very high 🙂Fair

Tomorrow UV 7,4High 🙂Fair

Monday UV 7,0High 🙂Fair

Tuesday UV 6,0High 🙂Fair

Wednesday UV 6,0High 🙂Fair

Thursday UV 6,0High —Unavailable

Friday UV 6,0High —Unavailable

Hourly UV index today

7:00 AMUV 0,0 8:00 AMUV 0,4 9:00 AMUV 1,4 10:00 AMUV 3,3 11:00 AMUV 5,4 12:00 PMUV 7,3 1:00 PMUV 8,1 2:00 PMUV 7,8 3:00 PMUV 6,1 4:00 PMUV 4,0 5:00 PMUV 1,9 6:00 PMUV 0,6

Today's weather health advice Open today's recommendations.

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Hillsborough

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · HILLSBOROUGH, CALIFORNIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 1:00 AM–2:00 AM.

99/100Best-hour score

BEST TIME TONIGHT 1:00 AM–2:00 AM Astronomical darkness: 8:50 PM–5:21 AM

☁ Cloud cover 2% Real hourly forecast for the best viewing hour.

☾ Moonlight 2% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 46° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min69%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Hillsborough were last refreshed today at 6:59 AM. The current forecast period extends through 14/09/2026 at 4:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.