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Current weather in Rossmoor is clear sky.

Where can I find the hourly weather forecast for Rossmoor?

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

Is the weather forecast for Rossmoor updated regularly?

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

Now · 5:14 PM

Rossmoor Weather & Hourly Forecast

United States · California · 90720

81°F

Sunny

Feels like: 84°F

💧 Humidity 59% 🌡 Pressure 29.77 inHg 💨 Wind 6 mph 👁 Visibility 21.2 mi ☁ Clouds 0% ☀️ UV index 1.5 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Rossmoor

Today

6:00 PM

Sunny

79° 💧 None 💨 5 mph H 63%29.77 inHg

9:00 PM

Clear night

74° 💧 None 💨 2 mph H 68%29.83 inHg

Tomorrow

12:00 AM

Clear night

72° 💧 None 💨 4 mph H 83%29.83 inHg

3:00 AM

Mostly cloudy night

70° 💧 None 💨 4 mph H 87%29.83 inHg

6:00 AM

Mostly clear night

70° 💧 0.000 in 💨 5 mph H 89%29.83 inHg

9:00 AM

Mostly sunny

74° 💧 0.000 in 💨 5 mph H 73%29.85 inHg

12:00 PM

Sunny

78° 💧 None 💨 7 mph H 63%29.85 inHg

3:00 PM

Sunny

79° 💧 None 💨 7 mph H 59%29.80 inHg

6:00 PM

Sunny

75° 💧 None 💨 5 mph H 65%29.77 inHg

9:00 PM

Clear night

72° 💧 None 💨 4 mph H 80%29.83 inHg

Tuesday

12:00 AM

Clear night

70° 💧 None 💨 5 mph H 83%29.85 inHg

3:00 AM

Clear night

69° 💧 None 💨 4 mph H 86%29.85 inHg

6:00 AM

Clear night

68° 💧 None 💨 5 mph H 88%29.88 inHg

9:00 AM

Sunny

73° 💧 None 💨 6 mph H 73%29.91 inHg

12:00 PM

Sunny

78° 💧 None 💨 8 mph H 60%29.94 inHg

3:00 PM

Sunny

76° 💧 None 💨 9 mph H 60%29.88 inHg

Today

6:00 PM

Sunny

79° 💧 None 💨 5 mph H 63%29.77 inHg

7:00 PM

Sunny

77° 💧 None 💨 4 mph H 65%29.80 inHg

8:00 PM

Clear night

75° 💧 None 💨 3 mph H 66%29.80 inHg

9:00 PM

Clear night

74° 💧 None 💨 2 mph H 68%29.83 inHg

10:00 PM

Clear night

74° 💧 None 💨 2 mph H 72%29.83 inHg

11:00 PM

Clear night

73° 💧 None 💨 3 mph H 78%29.83 inHg

Tomorrow

12:00 AM

Clear night

72° 💧 None 💨 4 mph H 83%29.83 inHg

1:00 AM

Clear night

71° 💧 None 💨 5 mph H 85%29.83 inHg

2:00 AM

Mostly cloudy night

71° 💧 None 💨 4 mph H 85%29.85 inHg

3:00 AM

Mostly cloudy night

70° 💧 None 💨 4 mph H 87%29.83 inHg

4:00 AM

Partly cloudy night

71° 💧 None 💨 5 mph H 88%29.83 inHg

5:00 AM

Mostly clear night

70° 💧 None 💨 5 mph H 89%29.83 inHg

6:00 AM

Mostly clear night

70° 💧 None 💨 5 mph H 89%29.83 inHg

7:00 AM

Mostly sunny

70° 💧 0.000 in 💨 5 mph H 90%29.83 inHg

8:00 AM

Mostly sunny

72° 💧 None 💨 5 mph H 82%29.85 inHg

9:00 AM

Mostly sunny

74° 💧 0.000 in 💨 5 mph H 73%29.85 inHg

10:00 AM

Partly cloudy

76° 💧 None 💨 6 mph H 65%29.85 inHg

11:00 AM

Sunny

77° 💧 None 💨 6 mph H 64%29.85 inHg

12:00 PM

Sunny

78° 💧 None 💨 7 mph H 63%29.85 inHg

1:00 PM

Sunny

78° 💧 None 💨 7 mph H 61%29.83 inHg

2:00 PM

Sunny

79° 💧 None 💨 7 mph H 59%29.83 inHg

3:00 PM

Sunny

79° 💧 None 💨 7 mph H 59%29.80 inHg

4:00 PM

Sunny

78° 💧 None 💨 7 mph H 60%29.77 inHg

5:00 PM

Sunny

77° 💧 None 💨 6 mph H 62%29.77 inHg

6:00 PM

Sunny

75° 💧 None 💨 5 mph H 65%29.77 inHg

7:00 PM

Sunny

73° 💧 None 💨 5 mph H 72%29.80 inHg

8:00 PM

Clear night

72° 💧 None 💨 4 mph H 77%29.80 inHg

9:00 PM

Clear night

72° 💧 None 💨 4 mph H 80%29.83 inHg

10:00 PM

Clear night

71° 💧 None 💨 4 mph H 81%29.85 inHg

11:00 PM

Clear night

70° 💧 None 💨 5 mph H 82%29.85 inHg

Tuesday

12:00 AM

Clear night

70° 💧 None 💨 5 mph H 83%29.85 inHg

1:00 AM

Clear night

69° 💧 None 💨 4 mph H 84%29.85 inHg

2:00 AM

Clear night

69° 💧 None 💨 4 mph H 85%29.85 inHg

3:00 AM

Clear night

69° 💧 None 💨 4 mph H 86%29.85 inHg

4:00 AM

Clear night

68° 💧 None 💨 5 mph H 86%29.85 inHg

5:00 AM

Clear night

68° 💧 None 💨 5 mph H 86%29.85 inHg

6:00 AM

Clear night

68° 💧 None 💨 5 mph H 88%29.88 inHg

7:00 AM

Sunny

68° 💧 None 💨 5 mph H 88%29.88 inHg

8:00 AM

Sunny

70° 💧 None 💨 5 mph H 81%29.91 inHg

9:00 AM

Sunny

73° 💧 None 💨 6 mph H 73%29.91 inHg

10:00 AM

Sunny

75° 💧 None 💨 6 mph H 64%29.94 inHg

11:00 AM

Sunny

77° 💧 None 💨 7 mph H 61%29.94 inHg

12:00 PM

Sunny

78° 💧 None 💨 8 mph H 60%29.94 inHg

1:00 PM

Sunny

78° 💧 None 💨 9 mph H 61%29.91 inHg

2:00 PM

Sunny

77° 💧 None 💨 9 mph H 60%29.91 inHg

3:00 PM

Sunny

76° 💧 None 💨 9 mph H 60%29.88 inHg

4:00 PM

Sunny

76° 💧 None 💨 7 mph H 61%29.88 inHg

5:00 PM

Sunny

75° 💧 None 💨 7 mph H 63%29.88 inHg

6:00 PM

Sunny

74° 💧 None 💨 6 mph H 68%29.85 inHg

7:00 PM

Clear night

73° 💧 None 💨 5 mph H 73%29.88 inHg

8:00 PM

Clear night

72° 💧 None 💨 4 mph H 76%29.88 inHg

9:00 PM

Clear night

71° 💧 None 💨 4 mph H 78%29.91 inHg

10:00 PM

Mostly clear night

71° 💧 None 💨 3 mph H 79%29.91 inHg

11:00 PM

Mostly clear night

70° 💧 None 💨 4 mph H 79%29.91 inHg

Wednesday

12:00 AM

Mostly cloudy night

70° 💧 0.000 in 💨 4 mph H 80%29.91 inHg

1:00 AM

Mostly clear night

70° 💧 None 💨 4 mph H 81%29.94 inHg

2:00 AM

Clear night

69° 💧 None 💨 3 mph H 82%29.94 inHg

3:00 AM

Clear night

68° 💧 None 💨 2 mph H 83%29.94 inHg

4:00 AM

Mostly clear night

68° 💧 None 💨 2 mph H 84%29.94 inHg

5:00 AM

Mostly clear night

67° 💧 None 💨 4 mph H 85%29.94 inHg

8:00 AM

Mostly sunny

70° 💧 None 💨 6 mph H 78%30.00 inHg

11:00 AM

Mostly sunny

76° 💧 None 💨 6 mph H 57%30.00 inHg

2:00 PM

Sunny

77° 💧 None 💨 8 mph H 56%29.94 inHg

5:00 PM

Sunny

74° 💧 None 💨 8 mph H 68%29.91 inHg

8:00 PM

Clear night

72° 💧 None 💨 6 mph H 76%29.97 inHg

11:00 PM

Mostly clear night

71° 💧 None 💨 3 mph H 74%30.00 inHg

Thursday

2:00 AM

Clear night

70° 💧 None 💨 2 mph H 77%30.00 inHg

5:00 AM

Mostly clear night

68° 💧 None 💨 2 mph H 80%30.00 inHg

8:00 AM

Mostly sunny

69° 💧 None 💨 1 mph H 76%30.03 inHg

11:00 AM

Sunny

75° 💧 None 💨 5 mph H 59%30.03 inHg

2:00 PM

Sunny

77° 💧 None 💨 10 mph H 60%30.00 inHg

5:00 PM

Sunny

76° 💧 None 💨 9 mph H 63%29.97 inHg

8:00 PM

Clear night

72° 💧 None 💨 5 mph H 69%30.00 inHg

11:00 PM

Clear night

70° 💧 None 💨 1 mph H 77%30.03 inHg

Friday

2:00 AM

Clear night

68° 💧 None 💨 2 mph H 79%30.03 inHg

5:00 AM

Clear night

66° 💧 None 💨 3 mph H 81%30.00 inHg

8:00 AM

Sunny

67° 💧 None 💨 2 mph H 77%30.00 inHg

11:00 AM

Sunny

75° 💧 None 💨 4 mph H 61%30.00 inHg

2:00 PM

Sunny

78° 💧 None 💨 8 mph H 55%29.94 inHg

5:00 PM

Sunny

78° 💧 None 💨 7 mph H 54%29.88 inHg

8:00 PM

Clear night

74° 💧 None 💨 3 mph H 69%29.91 inHg

11:00 PM

Clear night

71° 💧 None 💨 2 mph H 80%29.91 inHg

Saturday

2:00 AM

Partly cloudy night

69° 💧 None 💨 3 mph H 89%29.91 inHg

5:00 AM

Mostly cloudy night

67° 💧 None 💨 4 mph H 91%29.88 inHg

11:00 AM

Sunny

76° 💧 None 💨 4 mph H 64%29.91 inHg

5:00 PM

Sunny

77° 💧 None 💨 7 mph H 63%29.80 inHg

11:00 PM

Mostly clear night

71° 💧 None 💨 3 mph H 87%29.85 inHg

Sunday

5:00 AM

Mostly clear night

67° 💧 None 💨 3 mph H 89%29.85 inHg

11:00 AM

Mostly sunny

76° 💧 None 💨 4 mph H 64%29.88 inHg

5:00 PM

Sunny

76° 💧 None 💨 7 mph H 63%29.80 inHg

11:00 PM

Clear night

71° 💧 None 💨 4 mph H 79%29.88 inHg

Monday

5:00 AM

Mostly cloudy night

67° 💧 None 💨 4 mph H 88%29.88 inHg

11:00 AM

Mostly cloudy

76° 💧 None 💨 6 mph H 62%29.94 inHg

5:00 PM

Overcast

74° 💧 None 💨 8 mph H 66%29.88 inHg

11:00 PM

Partly cloudy night

71° 💧 None 💨 3 mph H 76%29.91 inHg

Tuesday

5:00 AM

Mostly clear night

68° 💧 None 💨 2 mph H 85%29.88 inHg

11:00 AM

Overcast

73° 💧 None 💨 4 mph H 67%29.94 inHg

5:00 PM

Mostly cloudy

74° 💧 None 💨 8 mph H 65%29.83 inHg

11:00 PM

Mostly clear night

70° 💧 None 💨 1 mph H 75%29.85 inHg

Wednesday

5:00 AM

Overcast night

67° 💧 None 💨 3 mph H 81%29.85 inHg

11:00 AM

Overcast

73° 💧 None 💨 5 mph H 68%29.91 inHg

5:00 PM

Mostly sunny

74° 💧 None 💨 7 mph H 61%29.83 inHg

11:00 PM

Mostly clear night

70° 💧 None 💨 2 mph H 74%29.88 inHg

Thursday

5:00 AM

Mostly clear night

66° 💧 None 💨 3 mph H 82%29.88 inHg

11:00 AM

Mostly cloudy

75° 💧 None 💨 2 mph H 57%29.97 inHg

5:00 PM

Sunny

75° 💧 None 💨 8 mph H 58%29.88 inHg

11:00 PM

Clear night

70° 💧 None 💨 1 mph H 79%29.94 inHg

Friday

5:00 AM

Clear night

65° 💧 None 💨 2 mph H 86%29.94 inHg

11:00 AM

Sunny

76° 💧 None 💨 3 mph H 58%29.97 inHg

5:00 PM

Sunny

80° 💧 None 💨 7 mph H 49%29.88 inHg

11:00 PM

Clear night

70° 💧 None 💨 1 mph H 77%29.91 inHg

Saturday

5:00 AM

Clear night

66° 💧 None 💨 1 mph H 86%29.88 inHg

11:00 AM

Sunny

79° 💧 None 💨 3 mph H 50%29.91 inHg

5:00 PM

Sunny

85° 💧 None 💨 7 mph H 43%29.83 inHg

11:00 PM

Mostly clear night

73° 💧 None 💨 1 mph H 76%29.91 inHg

Sunday

5:00 AM

Clear night

70° 💧 None 💨 1 mph H 86%29.88 inHg

11:00 AM

Sunny

86° 💧 None 💨 3 mph H 39%29.91 inHg

5:00 PM

Sunny

93° 💧 None 💨 7 mph H 29%29.80 inHg

11:00 PM

Clear night

79° 💧 None 💨 3 mph H 57%29.85 inHg

Monday

5:00 AM

Clear night

75° 💧 None 💨 3 mph H 77%29.83 inHg

In Rossmoor and, more broadly, across the state of California: As the afternoon winds down, skies remain clear, providing a peaceful evening setting. Temperatures will stay mild to warm, ranging from the low 66s to the upper 70s. Winds will shift to a northwest direction, reaching up to 15 mph with gusts potentially hitting 28 mph. The calm and dry conditions are expected to continue into the night, making for a comfortable evening. No rain is anticipated, so outdoor plans should proceed without concern for precipitation. It's a good evening to enjoy the clear skies and gentle breezes.

15-Day Weather Outlook for Rossmoor

TomorrowTomorrow

Mostly cloudy 79°/70° 💧 None 💨 7 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 78°/68° 💧 None 💨 9 mph

Wednesday, Sep 16Wed Sep 16

Mostly cloudy 77°/67° 💧 0.001 in 💨 8 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 77°/68° 💧 None 💨 10 mph

Friday, Sep 18Fri Sep 18

Sunny 78°/66° 💧 None 💨 8 mph

Saturday, Sep 19Sat Sep 19

Partly cloudy 77°/67° 💧 None 💨 7 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 76°/67° 💧 None 💨 7 mph

Monday, Sep 21Mon Sep 21

Mostly cloudy 76°/67° 💧 0.001 in 💨 8 mph

Tuesday, Sep 22Tue Sep 22

Overcast 74°/68° 💧 0.004 in 💨 8 mph

Wednesday, Sep 23Wed Sep 23

Overcast 74°/67° 💧 0.009 in 💨 7 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 75°/66° 💧 None 💨 8 mph

Friday, Sep 25Fri Sep 25

Sunny 80°/65° 💧 None 💨 7 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 85°/66° 💧 None 💨 7 mph

Sunday, Sep 27Sun Sep 27

Sunny 93°/70° 💧 None 💨 7 mph

Monday, Sep 28Mon Sep 28

Sunny 75°/75° 💧 None 💨 3 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Rossmoor

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Rossmoor

Hourly forecast · Updated every 2 hours

Moderate

Nearest forecast value 6:00 PM

PM2.5 Fine particles Good 6,6µg/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 27,9µg/m³

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

O₃ Ozone Moderate 100,3µg/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.

Sensitive people should reduce strenuous and prolonged outdoor exertion.

UV & HEALTH

UV, Sun & Health Outlook in Rossmoor

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 9,0Very high 😐Moderate

Tomorrow UV 8,7Very high 😐Moderate

Tuesday UV 8,6Very high 🙂Fair

Wednesday UV 8,4Very high 🙂Fair

Thursday UV 6,0High 🙂Fair

Friday UV 6,0High —Unavailable

Saturday UV 6,0High —Unavailable

Hourly UV index today

6:00 PMUV 0,4 7:00 PMUV 0,0

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.

Caution for sensitive people

People with respiratory or cardiovascular conditions should reduce prolonged outdoor exertion.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

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 Rossmoor

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · ROSSMOOR, CALIFORNIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 10:00 PM–11:00 PM.

100/100Best-hour score

BEST TIME TONIGHT 10:00 PM–11:00 PM Astronomical darkness: 8:25 PM–5:11 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 6% Waxing Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 16° 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 min36%

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.

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Forecast data for Rossmoor were last refreshed today at 5:14 PM. The current forecast period extends through 15/09/2026 at 3:00 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.