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Current weather in Signal Hill is few clouds.

Where can I find the hourly weather forecast for Signal Hill?

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

Is the weather forecast for Signal Hill updated regularly?

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

Now · 7:40 PM

Signal Hill Weather & Hourly Forecast

United States · California · 90755

75°F

Mostly sunny

Feels like: 75°F

💧 Humidity 59% 🌡 Pressure 29.88 inHg 💨 Wind 5 mph 👁 Visibility 20.2 mi ☁ Clouds 14% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Signal Hill

Today

8:00 PM

Mostly clear night

75° 💧 None 💨 5 mph H 59%29.88 inHg

11:00 PM

Clear night

73° 💧 None 💨 3 mph H 68%29.91 inHg

Tomorrow

2:00 AM

Overcast night

72° 💧 None 💨 2 mph H 69%29.88 inHg

5:00 AM

Light rain

71° 💧 0.088 in 💨 3 mph H 82%29.91 inHg

8:00 AM

Overcast

72° 💧 0.063 in 💨 3 mph H 75%29.94 inHg

11:00 AM

Light rain

72° 💧 0.078 in 💨 1 mph H 82%29.94 inHg

2:00 PM

Light rain

74° 💧 0.060 in 💨 2 mph H 78%29.91 inHg

5:00 PM

Mostly cloudy

76° 💧 0.011 in 💨 3 mph H 76%29.85 inHg

8:00 PM

Light rain

71° 💧 0.082 in 💨 5 mph H 91%29.85 inHg

11:00 PM

Light rain

70° 💧 0.009 in 💨 3 mph H 94%29.88 inHg

Monday

2:00 AM

Partly cloudy night

69° 💧 None 💨 3 mph H 92%29.88 inHg

5:00 AM

Partly cloudy night

69° 💧 None 💨 3 mph H 91%29.85 inHg

8:00 AM

Sunny

71° 💧 None 💨 3 mph H 91%29.88 inHg

11:00 AM

Sunny

83° 💧 None 💨 1 mph H 65%29.91 inHg

2:00 PM

Sunny

87° 💧 None 💨 6 mph H 56%29.85 inHg

5:00 PM

Partly cloudy

82° 💧 None 💨 6 mph H 51%29.83 inHg

Today

8:00 PM

Mostly clear night

75° 💧 None 💨 5 mph H 59%29.88 inHg

9:00 PM

Clear night

74° 💧 None 💨 4 mph H 65%29.91 inHg

10:00 PM

Clear night

73° 💧 None 💨 3 mph H 67%29.91 inHg

11:00 PM

Clear night

73° 💧 None 💨 3 mph H 68%29.91 inHg

Tomorrow

12:00 AM

Clear night

73° 💧 None 💨 3 mph H 68%29.91 inHg

1:00 AM

Mostly cloudy night

72° 💧 None 💨 3 mph H 69%29.91 inHg

2:00 AM

Overcast night

72° 💧 None 💨 2 mph H 69%29.88 inHg

3:00 AM

Overcast night

72° 💧 None 💨 1 mph H 69%29.88 inHg

4:00 AM

Overcast night

73° 💧 None 💨 2 mph H 68%29.88 inHg

5:00 AM

Light rain

71° 💧 0.041 in 💨 3 mph H 82%29.91 inHg

6:00 AM

Light rain

70° 💧 0.042 in 💨 4 mph H 90%29.91 inHg

7:00 AM

Light rain

70° 💧 0.005 in 💨 4 mph H 85%29.91 inHg

8:00 AM

Overcast

72° 💧 None 💨 3 mph H 75%29.94 inHg

9:00 AM

Light rain

73° 💧 0.023 in 💨 2 mph H 71%29.94 inHg

10:00 AM

Light rain

71° 💧 0.040 in 💨 1 mph H 81%29.94 inHg

11:00 AM

Light rain

72° 💧 0.040 in 💨 1 mph H 82%29.94 inHg

12:00 PM

Light rain

73° 💧 0.021 in 💨 2 mph H 77%29.94 inHg

1:00 PM

Light rain

74° 💧 0.017 in 💨 2 mph H 76%29.94 inHg

2:00 PM

Light rain

74° 💧 0.024 in 💨 2 mph H 78%29.91 inHg

3:00 PM

Light rain

74° 💧 0.030 in 💨 2 mph H 81%29.91 inHg

4:00 PM

Light rain

74° 💧 0.006 in 💨 4 mph H 81%29.88 inHg

5:00 PM

Mostly cloudy

76° 💧 None 💨 3 mph H 76%29.85 inHg

6:00 PM

Mostly cloudy

77° 💧 0.001 in 💨 4 mph H 75%29.85 inHg

7:00 PM

Light rain

74° 💧 0.010 in 💨 4 mph H 83%29.85 inHg

8:00 PM

Light rain

71° 💧 0.027 in 💨 5 mph H 91%29.85 inHg

9:00 PM

Light rain

71° 💧 0.033 in 💨 6 mph H 94%29.88 inHg

10:00 PM

Light rain

71° 💧 0.022 in 💨 4 mph H 94%29.88 inHg

11:00 PM

Light rain

70° 💧 0.008 in 💨 3 mph H 94%29.88 inHg

Monday

12:00 AM

Clear night

70° 💧 0.000 in 💨 4 mph H 93%29.88 inHg

1:00 AM

Mostly clear night

69° 💧 None 💨 3 mph H 92%29.88 inHg

2:00 AM

Partly cloudy night

69° 💧 None 💨 3 mph H 92%29.88 inHg

3:00 AM

Mostly cloudy night

69° 💧 None 💨 4 mph H 92%29.85 inHg

4:00 AM

Partly cloudy night

69° 💧 None 💨 3 mph H 92%29.85 inHg

5:00 AM

Partly cloudy night

69° 💧 None 💨 3 mph H 91%29.85 inHg

6:00 AM

Mostly clear night

69° 💧 None 💨 3 mph H 91%29.85 inHg

7:00 AM

Sunny

69° 💧 None 💨 3 mph H 93%29.88 inHg

8:00 AM

Sunny

71° 💧 None 💨 3 mph H 91%29.88 inHg

9:00 AM

Sunny

75° 💧 None 💨 2 mph H 83%29.91 inHg

10:00 AM

Sunny

80° 💧 None 💨 2 mph H 72%29.91 inHg

11:00 AM

Sunny

83° 💧 None 💨 1 mph H 65%29.91 inHg

12:00 PM

Sunny

86° 💧 None 💨 2 mph H 60%29.91 inHg

1:00 PM

Sunny

87° 💧 None 💨 4 mph H 58%29.88 inHg

2:00 PM

Sunny

87° 💧 None 💨 6 mph H 56%29.85 inHg

3:00 PM

Mostly sunny

86° 💧 None 💨 6 mph H 52%29.85 inHg

4:00 PM

Mostly sunny

84° 💧 None 💨 6 mph H 51%29.85 inHg

5:00 PM

Partly cloudy

82° 💧 None 💨 6 mph H 51%29.83 inHg

6:00 PM

Mostly cloudy

79° 💧 None 💨 5 mph H 55%29.83 inHg

7:00 PM

Mostly cloudy

76° 💧 None 💨 5 mph H 60%29.83 inHg

8:00 PM

Mostly cloudy night

74° 💧 None 💨 5 mph H 61%29.85 inHg

9:00 PM

Mostly clear night

74° 💧 None 💨 5 mph H 61%29.85 inHg

10:00 PM

Clear night

73° 💧 None 💨 4 mph H 62%29.88 inHg

11:00 PM

Clear night

72° 💧 None 💨 2 mph H 65%29.88 inHg

Tuesday

12:00 AM

Clear night

72° 💧 None 💨 2 mph H 65%29.88 inHg

1:00 AM

Partly cloudy night

71° 💧 None 💨 2 mph H 69%29.88 inHg

2:00 AM

Mostly cloudy night

71° 💧 None 💨 3 mph H 73%29.88 inHg

3:00 AM

Mostly cloudy night

70° 💧 None 💨 3 mph H 79%29.88 inHg

4:00 AM

Mostly cloudy night

69° 💧 None 💨 2 mph H 84%29.88 inHg

5:00 AM

Mostly cloudy night

68° 💧 None 💨 2 mph H 87%29.88 inHg

2:00 PM

Sunny

82° 💧 None 💨 8 mph H 58%29.88 inHg

5:00 PM

Sunny

79° 💧 None 💨 10 mph H 54%29.83 inHg

8:00 PM

Clear night

75° 💧 None 💨 9 mph H 61%29.83 inHg

11:00 PM

Overcast night

74° 💧 None 💨 5 mph H 71%29.88 inHg

Wednesday

2:00 AM

Mostly clear night

72° 💧 None 💨 5 mph H 76%29.88 inHg

5:00 AM

Mostly clear night

72° 💧 None 💨 2 mph H 80%29.88 inHg

8:00 AM

Sunny

75° 💧 None 💨 3 mph H 73%29.94 inHg

11:00 AM

Sunny

84° 💧 None 💨 3 mph H 60%29.94 inHg

2:00 PM

Sunny

85° 💧 None 💨 9 mph H 57%29.91 inHg

5:00 PM

Mostly sunny

83° 💧 None 💨 9 mph H 53%29.88 inHg

8:00 PM

Clear night

80° 💧 None 💨 12 mph H 56%29.88 inHg

11:00 PM

Mostly clear night

77° 💧 None 💨 5 mph H 66%29.94 inHg

Thursday

2:00 AM

Clear night

75° 💧 None 💨 0 mph H 77%29.94 inHg

5:00 AM

Clear night

72° 💧 None 💨 4 mph H 87%29.91 inHg

8:00 AM

Sunny

74° 💧 None 💨 5 mph H 81%29.94 inHg

11:00 AM

Sunny

79° 💧 None 💨 6 mph H 68%29.94 inHg

2:00 PM

Mostly sunny

81° 💧 None 💨 5 mph H 64%29.88 inHg

5:00 PM

Sunny

81° 💧 None 💨 6 mph H 61%29.83 inHg

8:00 PM

Clear night

76° 💧 None 💨 2 mph H 71%29.83 inHg

11:00 PM

Clear night

74° 💧 None 💨 6 mph H 84%29.85 inHg

Friday

2:00 AM

Clear night

72° 💧 None 💨 7 mph H 89%29.85 inHg

5:00 AM

Clear night

71° 💧 None 💨 6 mph H 87%29.83 inHg

8:00 AM

Sunny

73° 💧 None 💨 8 mph H 77%29.85 inHg

11:00 AM

Sunny

77° 💧 None 💨 7 mph H 69%29.85 inHg

5:00 PM

Sunny

77° 💧 None 💨 7 mph H 69%29.88 inHg

11:00 PM

Mostly clear night

78° 💧 None 💨 6 mph H 68%29.80 inHg

Saturday

5:00 AM

Clear night

72° 💧 None 💨 6 mph H 86%29.83 inHg

11:00 AM

Partly cloudy

71° 💧 None 💨 9 mph H 89%29.83 inHg

5:00 PM

Mostly sunny

74° 💧 None 💨 7 mph H 77%29.85 inHg

11:00 PM

Mostly clear night

76° 💧 None 💨 6 mph H 73%29.77 inHg

Sunday

5:00 AM

Mostly clear night

71° 💧 None 💨 3 mph H 83%29.80 inHg

11:00 AM

Overcast

69° 💧 None 💨 5 mph H 95%29.80 inHg

5:00 PM

Mostly sunny

76° 💧 None 💨 4 mph H 74%29.85 inHg

11:00 PM

Mostly clear night

77° 💧 None 💨 9 mph H 64%29.77 inHg

Monday

5:00 AM

Mostly clear night

71° 💧 None 💨 5 mph H 85%29.85 inHg

11:00 AM

Sunny

69° 💧 None 💨 4 mph H 90%29.85 inHg

5:00 PM

Sunny

74° 💧 None 💨 7 mph H 76%29.91 inHg

11:00 PM

Mostly clear night

74° 💧 None 💨 6 mph H 77%29.83 inHg

Tuesday

5:00 AM

Clear night

71° 💧 None 💨 3 mph H 84%29.88 inHg

11:00 AM

Mostly sunny

68° 💧 None 💨 4 mph H 95%29.88 inHg

5:00 PM

Sunny

75° 💧 None 💨 4 mph H 75%29.91 inHg

11:00 PM

Clear night

77° 💧 None 💨 7 mph H 71%29.83 inHg

Wednesday

5:00 AM

Mostly clear night

70° 💧 None 💨 3 mph H 93%29.91 inHg

11:00 AM

Sunny

69° 💧 None 💨 4 mph H 94%29.91 inHg

5:00 PM

Mostly sunny

76° 💧 None 💨 4 mph H 72%29.97 inHg

11:00 PM

Clear night

76° 💧 None 💨 7 mph H 74%29.91 inHg

Thursday

5:00 AM

Mostly clear night

71° 💧 None 💨 3 mph H 90%30.00 inHg

11:00 AM

Partly cloudy

69° 💧 None 💨 2 mph H 94%29.97 inHg

5:00 PM

Overcast

78° 💧 None 💨 4 mph H 66%30.00 inHg

11:00 PM

Mostly clear night

79° 💧 None 💨 7 mph H 64%29.94 inHg

Friday

5:00 AM

Clear night

74° 💧 None 💨 2 mph H 87%29.97 inHg

11:00 AM

Sunny

71° 💧 None 💨 2 mph H 96%29.94 inHg

5:00 PM

Mostly sunny

79° 💧 None 💨 4 mph H 67%29.94 inHg

11:00 PM

Mostly clear night

80° 💧 None 💨 7 mph H 58%29.85 inHg

Saturday

5:00 AM

Clear night

73° 💧 None 💨 2 mph H 86%29.88 inHg

11:00 AM

Sunny

70° 💧 None 💨 1 mph H 97%29.85 inHg

5:00 PM

Sunny

79° 💧 None 💨 3 mph H 67%29.88 inHg

11:00 PM

Clear night

79° 💧 None 💨 7 mph H 64%29.77 inHg

Sunday

5:00 AM

Clear night

73° 💧 None 💨 2 mph H 87%29.85 inHg

11:00 AM

Partly cloudy

70° 💧 None 💨 3 mph H 97%29.85 inHg

In Signal Hill and, more broadly, across the state of California: Clear skies will continue through the evening, with temperatures remaining mild to warm, ranging from 77 to 84 degrees Fahrenheit. Winds will be coming from the north at around 10 to 14 mph, with gusts reaching up to 29 mph. No precipitation is expected overnight, so conditions will be dry. It will be a pleasant evening with comfortable temperatures and moderate breezes.

15-Day Weather Outlook for Signal Hill

TomorrowTomorrow

Mostly sunny 82°/70° 💧 None 💨 6 mph

Monday, Sep 7Mon Sep 7

Mostly cloudy 87°/69° 💧 None 💨 6 mph

Tuesday, Sep 8Tue Sep 8

Partly cloudy 82°/68° 💧 0.366 in 💨 7 mph

Wednesday, Sep 9Wed Sep 9

Mostly sunny 85°/71° 💧 0.001 in 💨 11 mph

Thursday, Sep 10Thu Sep 10

Mostly sunny 85°/74° 💧 None 💨 9 mph

Friday, Sep 11Fri Sep 11

Sunny 80°/71° 💧 None 💨 8 mph

Saturday, Sep 12Sat Sep 12

Partly cloudy 78°/71° 💧 0.003 in 💨 9 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 76°/69° 💧 0.001 in 💨 6 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 77°/69° 💧 None 💨 9 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 75°/68° 💧 None 💨 6 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 77°/69° 💧 None 💨 7 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 78°/69° 💧 0.001 in 💨 7 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 79°/71° 💧 None 💨 7 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 80°/70° 💧 None 💨 7 mph

Sunday, Sep 20Sun Sep 20

Partly cloudy 79°/70° 💧 None 💨 7 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Signal Hill

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Signal Hill

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 8:00 PM

PM2.5 Fine particles Good 4,4µg/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 Good 10,3µg/m³

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

O₃ Ozone Fair 89,9µg/m³

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

NO₂ Nitrogen dioxide Good 0,4µg/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 Signal Hill

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 9,3Very high 🙂Fair

Tomorrow UV 3,3Moderate 🙂Fair

Monday UV 9,3Very high 🙂Fair

Tuesday UV 9,5Very high 😐Moderate

Wednesday UV 9,2Very high 🙂Fair

Thursday UV 7,0High —Unavailable

Friday UV 7,0High —Unavailable

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 Signal Hill

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · SIGNAL HILL, CALIFORNIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 11:00 PM–12:00 AM.

98/100Best-hour score

BEST TIME TONIGHT 11:00 PM–12:00 AM Astronomical darkness: 8:38 PM–5:04 AM

☁ Cloud cover 3% Real hourly forecast for the best viewing hour.

☾ Moonlight 32% Last Quarter · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 20° high at the best hour.

✦ Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min44%

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

AUG 28–SEP 5

AurigidsStart AUG 28 · Peak SEP 1 · End SEP 5 · ZHR 6 · 80% Moon at peak

ACTIVE NOW

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

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.

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Forecast data for Signal Hill were last refreshed today at 7:40 PM. The current forecast period extends through 07/09/2026 at 5:00 PM. 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.