What is the weather in Newcastle right now?

Current weather in Newcastle is clear sky.

Where can I find the hourly weather forecast for Newcastle?

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

Is the weather forecast for Newcastle updated regularly?

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

Now · 8:16 PM

Newcastle Weather & Hourly Forecast

United States · California · 95658

70°F

Clear night

Feels like: 66°F

💧 Humidity 39% 🌡 Pressure 29.91 inHg 💨 Wind 4 mph 👁 Visibility 20.7 mi ☁ Clouds 0% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Newcastle

Today

9:00 PM

Clear night

68° 💧 None 💨 4 mph H 42%29.91 inHg

Tomorrow

12:00 AM

Partly cloudy night

60° 💧 None 💨 3 mph H 64%29.94 inHg

3:00 AM

Clear night

56° 💧 None 💨 5 mph H 75%29.91 inHg

6:00 AM

Clear night

56° 💧 None 💨 6 mph H 74%29.91 inHg

9:00 AM

Sunny

66° 💧 None 💨 8 mph H 44%29.94 inHg

12:00 PM

Sunny

74° 💧 None 💨 9 mph H 29%29.94 inHg

3:00 PM

Sunny

79° 💧 None 💨 8 mph H 23%29.91 inHg

6:00 PM

Sunny

77° 💧 None 💨 7 mph H 21%29.88 inHg

9:00 PM

Clear night

66° 💧 None 💨 3 mph H 39%29.91 inHg

Monday

12:00 AM

Clear night

59° 💧 None 💨 5 mph H 54%29.94 inHg

3:00 AM

Clear night

55° 💧 None 💨 6 mph H 62%29.94 inHg

6:00 AM

Clear night

53° 💧 None 💨 5 mph H 64%29.94 inHg

9:00 AM

Sunny

68° 💧 None 💨 3 mph H 41%29.97 inHg

12:00 PM

Sunny

80° 💧 None 💨 7 mph H 27%29.94 inHg

3:00 PM

Sunny

85° 💧 None 💨 6 mph H 19%29.88 inHg

6:00 PM

Sunny

83° 💧 None 💨 5 mph H 19%29.85 inHg

Today

9:00 PM

Clear night

68° 💧 None 💨 4 mph H 42%29.91 inHg

10:00 PM

Partly cloudy night

66° 💧 None 💨 2 mph H 46%29.94 inHg

11:00 PM

Partly cloudy night

63° 💧 None 💨 2 mph H 53%29.94 inHg

Tomorrow

12:00 AM

Partly cloudy night

60° 💧 None 💨 3 mph H 64%29.94 inHg

1:00 AM

Partly cloudy night

57° 💧 None 💨 4 mph H 72%29.94 inHg

2:00 AM

Mostly clear night

57° 💧 None 💨 5 mph H 73%29.91 inHg

3:00 AM

Clear night

56° 💧 None 💨 5 mph H 75%29.91 inHg

4:00 AM

Clear night

56° 💧 None 💨 5 mph H 76%29.91 inHg

5:00 AM

Clear night

56° 💧 None 💨 5 mph H 76%29.91 inHg

6:00 AM

Clear night

56° 💧 None 💨 6 mph H 74%29.91 inHg

7:00 AM

Sunny

56° 💧 None 💨 7 mph H 71%29.94 inHg

8:00 AM

Sunny

61° 💧 None 💨 8 mph H 58%29.94 inHg

9:00 AM

Sunny

66° 💧 None 💨 8 mph H 44%29.94 inHg

10:00 AM

Sunny

69° 💧 None 💨 9 mph H 37%29.94 inHg

11:00 AM

Sunny

72° 💧 None 💨 9 mph H 34%29.94 inHg

12:00 PM

Sunny

74° 💧 None 💨 9 mph H 29%29.94 inHg

1:00 PM

Sunny

76° 💧 None 💨 9 mph H 26%29.91 inHg

2:00 PM

Sunny

78° 💧 None 💨 8 mph H 25%29.91 inHg

3:00 PM

Sunny

79° 💧 None 💨 8 mph H 23%29.91 inHg

4:00 PM

Sunny

79° 💧 None 💨 8 mph H 21%29.88 inHg

5:00 PM

Sunny

79° 💧 None 💨 8 mph H 20%29.88 inHg

6:00 PM

Sunny

77° 💧 None 💨 7 mph H 21%29.88 inHg

7:00 PM

Sunny

74° 💧 None 💨 4 mph H 27%29.88 inHg

8:00 PM

Clear night

69° 💧 None 💨 4 mph H 34%29.88 inHg

9:00 PM

Clear night

66° 💧 None 💨 3 mph H 39%29.91 inHg

10:00 PM

Clear night

63° 💧 None 💨 5 mph H 46%29.94 inHg

11:00 PM

Clear night

61° 💧 None 💨 5 mph H 50%29.94 inHg

Monday

12:00 AM

Clear night

59° 💧 None 💨 5 mph H 54%29.94 inHg

1:00 AM

Clear night

57° 💧 None 💨 6 mph H 57%29.94 inHg

2:00 AM

Clear night

56° 💧 None 💨 6 mph H 59%29.94 inHg

3:00 AM

Clear night

55° 💧 None 💨 6 mph H 62%29.94 inHg

4:00 AM

Clear night

55° 💧 None 💨 5 mph H 61%29.94 inHg

5:00 AM

Clear night

54° 💧 None 💨 5 mph H 62%29.94 inHg

6:00 AM

Clear night

53° 💧 None 💨 5 mph H 64%29.94 inHg

7:00 AM

Sunny

53° 💧 None 💨 6 mph H 64%29.94 inHg

8:00 AM

Sunny

59° 💧 None 💨 5 mph H 54%29.94 inHg

9:00 AM

Sunny

68° 💧 None 💨 3 mph H 41%29.97 inHg

10:00 AM

Sunny

73° 💧 None 💨 4 mph H 33%29.97 inHg

11:00 AM

Sunny

77° 💧 None 💨 6 mph H 31%29.97 inHg

12:00 PM

Sunny

80° 💧 None 💨 7 mph H 27%29.94 inHg

1:00 PM

Sunny

83° 💧 None 💨 7 mph H 24%29.94 inHg

2:00 PM

Sunny

85° 💧 None 💨 6 mph H 21%29.91 inHg

3:00 PM

Sunny

85° 💧 None 💨 6 mph H 19%29.88 inHg

4:00 PM

Sunny

86° 💧 None 💨 6 mph H 18%29.88 inHg

5:00 PM

Sunny

85° 💧 None 💨 5 mph H 18%29.85 inHg

6:00 PM

Sunny

83° 💧 None 💨 5 mph H 19%29.85 inHg

7:00 PM

Sunny

78° 💧 None 💨 3 mph H 29%29.85 inHg

8:00 PM

Clear night

74° 💧 None 💨 1 mph H 30%29.85 inHg

9:00 PM

Clear night

71° 💧 None 💨 2 mph H 32%29.88 inHg

10:00 PM

Clear night

65° 💧 None 💨 5 mph H 44%29.88 inHg

11:00 PM

Clear night

64° 💧 None 💨 6 mph H 46%29.88 inHg

Tuesday

12:00 AM

Clear night

63° 💧 None 💨 6 mph H 47%29.88 inHg

1:00 AM

Clear night

62° 💧 None 💨 7 mph H 51%29.88 inHg

2:00 AM

Clear night

61° 💧 None 💨 7 mph H 55%29.88 inHg

3:00 AM

Clear night

60° 💧 None 💨 7 mph H 58%29.88 inHg

4:00 AM

Mostly clear night

59° 💧 None 💨 7 mph H 59%29.88 inHg

5:00 AM

Partly cloudy night

59° 💧 None 💨 7 mph H 59%29.91 inHg

2:00 PM

Mostly sunny

93° 💧 None 💨 4 mph H 14%29.91 inHg

5:00 PM

Overcast

94° 💧 None 💨 2 mph H 12%29.88 inHg

8:00 PM

Overcast night

85° 💧 None 💨 4 mph H 19%29.91 inHg

11:00 PM

Mostly cloudy night

79° 💧 None 💨 5 mph H 26%29.94 inHg

Wednesday

2:00 AM

Overcast night

77° 💧 None 💨 2 mph H 32%29.94 inHg

5:00 AM

Overcast night

75° 💧 None 💨 3 mph H 36%30.00 inHg

8:00 AM

Overcast

76° 💧 None 💨 3 mph H 38%30.03 inHg

11:00 AM

Partly cloudy

87° 💧 None 💨 4 mph H 24%30.03 inHg

2:00 PM

Sunny

97° 💧 None 💨 6 mph H 13%29.97 inHg

5:00 PM

Sunny

99° 💧 None 💨 7 mph H 13%29.91 inHg

8:00 PM

Clear night

91° 💧 None 💨 3 mph H 19%29.91 inHg

11:00 PM

Clear night

84° 💧 None 💨 3 mph H 27%29.97 inHg

Thursday

2:00 AM

Clear night

78° 💧 None 💨 3 mph H 38%29.97 inHg

5:00 AM

Clear night

75° 💧 None 💨 3 mph H 45%29.97 inHg

8:00 AM

Sunny

77° 💧 None 💨 3 mph H 43%29.97 inHg

11:00 AM

Sunny

92° 💧 None 💨 2 mph H 22%29.97 inHg

2:00 PM

Sunny

101° 💧 None 💨 4 mph H 17%29.91 inHg

5:00 PM

Sunny

101° 💧 None 💨 3 mph H 17%29.85 inHg

8:00 PM

Partly cloudy night

92° 💧 None 💨 6 mph H 20%29.85 inHg

11:00 PM

Mostly clear night

84° 💧 None 💨 8 mph H 26%29.88 inHg

Friday

2:00 AM

Mostly clear night

77° 💧 None 💨 8 mph H 36%29.88 inHg

5:00 AM

Mostly clear night

72° 💧 None 💨 8 mph H 43%29.85 inHg

8:00 AM

Sunny

72° 💧 None 💨 7 mph H 43%29.88 inHg

11:00 AM

Sunny

83° 💧 None 💨 6 mph H 32%29.88 inHg

5:00 PM

Sunny

83° 💧 None 💨 6 mph H 30%29.91 inHg

11:00 PM

Mostly clear night

96° 💧 None 💨 4 mph H 17%29.80 inHg

Saturday

5:00 AM

Mostly clear night

75° 💧 None 💨 9 mph H 37%29.83 inHg

11:00 AM

Sunny

67° 💧 None 💨 6 mph H 54%29.83 inHg

5:00 PM

Sunny

78° 💧 None 💨 4 mph H 41%29.88 inHg

11:00 PM

Clear night

93° 💧 None 💨 2 mph H 20%29.77 inHg

Sunday

5:00 AM

Clear night

70° 💧 None 💨 8 mph H 52%29.85 inHg

11:00 AM

Mostly sunny

60° 💧 None 💨 7 mph H 76%29.85 inHg

5:00 PM

Sunny

70° 💧 None 💨 6 mph H 55%29.91 inHg

11:00 PM

Overcast night

82° 💧 None 💨 6 mph H 30%29.85 inHg

Monday

5:00 AM

Overcast night

64° 💧 None 💨 8 mph H 70%29.94 inHg

11:00 AM

Sunny

58° 💧 None 💨 6 mph H 87%29.94 inHg

5:00 PM

Mostly sunny

68° 💧 None 💨 4 mph H 58%30.00 inHg

11:00 PM

Partly cloudy night

83° 💧 None 💨 3 mph H 34%29.88 inHg

Tuesday

5:00 AM

Clear night

67° 💧 None 💨 6 mph H 59%29.94 inHg

11:00 AM

Sunny

59° 💧 None 💨 6 mph H 79%29.97 inHg

5:00 PM

Sunny

71° 💧 None 💨 4 mph H 50%30.00 inHg

11:00 PM

Clear night

86° 💧 None 💨 2 mph H 23%29.88 inHg

Wednesday

5:00 AM

Mostly clear night

71° 💧 None 💨 6 mph H 46%29.91 inHg

11:00 AM

Mostly sunny

62° 💧 None 💨 6 mph H 63%29.94 inHg

5:00 PM

Sunny

74° 💧 None 💨 4 mph H 43%30.03 inHg

11:00 PM

Clear night

89° 💧 None 💨 2 mph H 20%29.94 inHg

Thursday

5:00 AM

Clear night

74° 💧 None 💨 6 mph H 37%30.00 inHg

11:00 AM

Sunny

65° 💧 None 💨 5 mph H 50%30.03 inHg

5:00 PM

Mostly sunny

78° 💧 None 💨 3 mph H 35%30.06 inHg

11:00 PM

Clear night

91° 💧 None 💨 2 mph H 16%29.97 inHg

Friday

5:00 AM

Clear night

74° 💧 None 💨 6 mph H 37%30.00 inHg

11:00 AM

Sunny

64° 💧 None 💨 4 mph H 61%30.00 inHg

5:00 PM

Sunny

78° 💧 None 💨 2 mph H 38%30.00 inHg

11:00 PM

Clear night

93° 💧 None 💨 3 mph H 15%29.88 inHg

Saturday

5:00 AM

Clear night

74° 💧 None 💨 6 mph H 46%29.91 inHg

11:00 AM

Sunny

63° 💧 None 💨 6 mph H 68%29.88 inHg

5:00 PM

Sunny

74° 💧 None 💨 4 mph H 48%29.91 inHg

11:00 PM

Mostly clear night

88° 💧 None 💨 4 mph H 25%29.80 inHg

Sunday

5:00 AM

Mostly clear night

68° 💧 None 💨 8 mph H 61%29.85 inHg

11:00 AM

Partly cloudy

61° 💧 None 💨 5 mph H 75%29.85 inHg

In Newcastle 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 Newcastle

Monday, Sep 7Mon Sep 7

Sunny 86°/53° 💧 None 💨 8 mph

Tuesday, Sep 8Tue Sep 8

Mostly sunny 93°/59° 💧 None 💨 7 mph

Wednesday, Sep 9Wed Sep 9

Overcast 97°/75° 💧 0.000 in 💨 6 mph

Thursday, Sep 10Thu Sep 10

Sunny 101°/75° 💧 None 💨 7 mph

Friday, Sep 11Fri Sep 11

Partly cloudy 101°/72° 💧 None 💨 8 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 96°/67° 💧 0.011 in 💨 9 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 93°/60° 💧 None 💨 8 mph

Monday, Sep 14Mon Sep 14

Overcast 82°/58° 💧 None 💨 8 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 83°/59° 💧 None 💨 6 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 86°/62° 💧 None 💨 6 mph

Thursday, Sep 17Thu Sep 17

Sunny 89°/65° 💧 None 💨 6 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 91°/64° 💧 None 💨 6 mph

Saturday, Sep 19Sat Sep 19

Sunny 93°/63° 💧 None 💨 6 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 88°/61° 💧 None 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Newcastle

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Newcastle

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 9:00 PM

PM2.5 Fine particles Good 2,5µg/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 5,8µg/m³

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

O₃ Ozone Fair 70,2µg/m³

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

NO₂ Nitrogen dioxide Good 12,2µg/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 Newcastle

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 7,1High 🙂Fair

Tomorrow UV 7,0High 😐Moderate

Monday UV 7,2High 😐Moderate

Tuesday UV 7,2High ⚠️Very poor

Wednesday UV 8,2Very high ⚠️Very poor

Thursday UV 9,0Very high —Unavailable

Friday UV 8,0Very high —Unavailable

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

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

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.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Newcastle

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · NEWCASTLE, CALIFORNIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 4:00 AM–5:00 AM.

98/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 9:01 PM–5:06 AM

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

☾ Moonlight 29% Waning Crescent · Moon about 27° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 76° 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 min74%

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.

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

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Forecast data for Newcastle were last refreshed today at 8:16 PM. The current forecast period extends through 07/09/2026 at 6:00 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.