What is the weather in Alta Sierra right now?

Current weather in Alta Sierra is overcast clouds.

Where can I find the hourly weather forecast for Alta Sierra?

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

Is the weather forecast for Alta Sierra updated regularly?

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

Now · 11:06 AM

Alta Sierra Weather & Hourly Forecast

United States · California · 93285

74°F

Overcast

Feels like: 70°F

💧 Humidity 31% 🌡 Pressure 29.97 inHg 💨 Wind 3 mph 👁 Visibility 27.3 mi ☁ Clouds 100% ☀️ UV index 6.9 · High 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Alta Sierra

Today

12:00 PM

Overcast

75° 💧 None 💨 4 mph H 31%29.94 inHg

3:00 PM

Mostly cloudy

75° 💧 0.002 in 💨 6 mph H 37%29.94 inHg

6:00 PM

Sunny

74° 💧 0.000 in 💨 6 mph H 31%29.91 inHg

9:00 PM

Clear night

64° 💧 None 💨 2 mph H 47%29.94 inHg

Tomorrow

12:00 AM

Clear night

60° 💧 None 💨 2 mph H 62%29.94 inHg

3:00 AM

Clear night

57° 💧 None 💨 2 mph H 69%29.94 inHg

6:00 AM

Clear night

55° 💧 None 💨 2 mph H 70%29.97 inHg

9:00 AM

Sunny

70° 💧 None 💨 0 mph H 38%30.00 inHg

12:00 PM

Sunny

83° 💧 None 💨 8 mph H 20%29.94 inHg

3:00 PM

Sunny

83° 💧 None 💨 9 mph H 23%29.91 inHg

6:00 PM

Sunny

79° 💧 None 💨 7 mph H 30%29.91 inHg

9:00 PM

Clear night

69° 💧 None 💨 2 mph H 39%29.94 inHg

Tuesday

12:00 AM

Clear night

63° 💧 None 💨 2 mph H 43%29.97 inHg

3:00 AM

Clear night

62° 💧 None 💨 2 mph H 45%30.00 inHg

6:00 AM

Mostly cloudy night

60° 💧 None 💨 1 mph H 50%30.00 inHg

9:00 AM

Mostly cloudy

74° 💧 None 💨 1 mph H 30%30.03 inHg

Today

12:00 PM

Overcast

75° 💧 None 💨 4 mph H 31%29.94 inHg

1:00 PM

Overcast

74° 💧 None 💨 5 mph H 33%29.94 inHg

2:00 PM

Overcast

74° 💧 None 💨 7 mph H 36%29.94 inHg

3:00 PM

Mostly cloudy

75° 💧 0.002 in 💨 6 mph H 37%29.94 inHg

4:00 PM

Partly cloudy

74° 💧 None 💨 5 mph H 34%29.91 inHg

5:00 PM

Mostly sunny

75° 💧 None 💨 7 mph H 30%29.91 inHg

6:00 PM

Sunny

74° 💧 None 💨 6 mph H 31%29.91 inHg

7:00 PM

Sunny

70° 💧 0.000 in 💨 4 mph H 35%29.91 inHg

8:00 PM

Clear night

66° 💧 None 💨 2 mph H 42%29.91 inHg

9:00 PM

Clear night

64° 💧 None 💨 2 mph H 47%29.94 inHg

10:00 PM

Clear night

62° 💧 None 💨 2 mph H 53%29.94 inHg

11:00 PM

Clear night

61° 💧 None 💨 2 mph H 58%29.94 inHg

Tomorrow

12:00 AM

Clear night

60° 💧 None 💨 2 mph H 62%29.94 inHg

1:00 AM

Clear night

59° 💧 None 💨 2 mph H 65%29.97 inHg

2:00 AM

Clear night

58° 💧 None 💨 2 mph H 67%29.94 inHg

3:00 AM

Clear night

57° 💧 None 💨 2 mph H 69%29.94 inHg

4:00 AM

Clear night

56° 💧 None 💨 2 mph H 69%29.97 inHg

5:00 AM

Clear night

55° 💧 None 💨 2 mph H 70%29.97 inHg

6:00 AM

Clear night

55° 💧 None 💨 2 mph H 70%29.97 inHg

7:00 AM

Sunny

55° 💧 None 💨 2 mph H 69%30.00 inHg

8:00 AM

Sunny

63° 💧 None 💨 2 mph H 52%30.00 inHg

9:00 AM

Sunny

70° 💧 None 💨 0 mph H 38%30.00 inHg

10:00 AM

Sunny

75° 💧 None 💨 2 mph H 31%29.97 inHg

11:00 AM

Sunny

80° 💧 None 💨 4 mph H 24%29.97 inHg

12:00 PM

Sunny

83° 💧 None 💨 8 mph H 20%29.94 inHg

1:00 PM

Sunny

84° 💧 None 💨 10 mph H 21%29.91 inHg

2:00 PM

Sunny

84° 💧 None 💨 10 mph H 22%29.91 inHg

3:00 PM

Sunny

83° 💧 None 💨 9 mph H 23%29.91 inHg

4:00 PM

Sunny

82° 💧 None 💨 9 mph H 25%29.88 inHg

5:00 PM

Sunny

81° 💧 None 💨 8 mph H 28%29.88 inHg

6:00 PM

Sunny

79° 💧 None 💨 7 mph H 30%29.91 inHg

7:00 PM

Sunny

75° 💧 None 💨 4 mph H 32%29.91 inHg

8:00 PM

Clear night

71° 💧 None 💨 2 mph H 37%29.91 inHg

9:00 PM

Clear night

69° 💧 None 💨 2 mph H 39%29.94 inHg

10:00 PM

Clear night

67° 💧 None 💨 2 mph H 40%29.97 inHg

11:00 PM

Clear night

65° 💧 None 💨 2 mph H 41%29.97 inHg

Tuesday

12:00 AM

Clear night

63° 💧 None 💨 2 mph H 43%29.97 inHg

1:00 AM

Clear night

63° 💧 None 💨 2 mph H 44%30.00 inHg

2:00 AM

Clear night

62° 💧 None 💨 2 mph H 45%30.00 inHg

3:00 AM

Clear night

62° 💧 None 💨 2 mph H 45%30.00 inHg

4:00 AM

Clear night

61° 💧 None 💨 2 mph H 46%30.00 inHg

5:00 AM

Clear night

60° 💧 None 💨 1 mph H 48%30.00 inHg

6:00 AM

Mostly cloudy night

60° 💧 None 💨 1 mph H 50%30.00 inHg

7:00 AM

Mostly cloudy

60° 💧 None 💨 1 mph H 50%30.00 inHg

8:00 AM

Partly cloudy

67° 💧 None 💨 1 mph H 41%30.03 inHg

9:00 AM

Mostly cloudy

74° 💧 None 💨 1 mph H 30%30.03 inHg

10:00 AM

Mostly cloudy

79° 💧 None 💨 2 mph H 26%30.00 inHg

11:00 AM

Overcast

82° 💧 None 💨 2 mph H 25%29.97 inHg

12:00 PM

Overcast

83° 💧 None 💨 3 mph H 24%29.97 inHg

1:00 PM

Overcast

82° 💧 None 💨 3 mph H 24%29.97 inHg

2:00 PM

Overcast

81° 💧 None 💨 4 mph H 23%29.97 inHg

3:00 PM

Overcast

82° 💧 None 💨 6 mph H 22%29.97 inHg

4:00 PM

Overcast

81° 💧 None 💨 4 mph H 24%29.94 inHg

5:00 PM

Overcast

80° 💧 None 💨 5 mph H 25%29.94 inHg

Wednesday

2:00 AM

Partly cloudy night

65° 💧 None 💨 2 mph H 38%30.06 inHg

5:00 AM

Clear night

64° 💧 None 💨 1 mph H 39%30.06 inHg

8:00 AM

Partly cloudy

72° 💧 None 💨 2 mph H 31%30.12 inHg

11:00 AM

Mostly sunny

86° 💧 None 💨 4 mph H 20%30.09 inHg

2:00 PM

Mostly sunny

91° 💧 None 💨 4 mph H 17%30.03 inHg

5:00 PM

Sunny

87° 💧 None 💨 6 mph H 20%30.00 inHg

8:00 PM

Clear night

75° 💧 None 💨 3 mph H 31%30.03 inHg

11:00 PM

Clear night

69° 💧 None 💨 3 mph H 38%30.09 inHg

Thursday

2:00 AM

Clear night

66° 💧 None 💨 4 mph H 43%30.09 inHg

5:00 AM

Clear night

63° 💧 None 💨 4 mph H 47%30.06 inHg

8:00 AM

Sunny

72° 💧 None 💨 4 mph H 35%30.09 inHg

11:00 AM

Sunny

86° 💧 None 💨 5 mph H 21%30.03 inHg

2:00 PM

Sunny

88° 💧 None 💨 8 mph H 18%29.97 inHg

5:00 PM

Sunny

85° 💧 None 💨 9 mph H 19%29.91 inHg

8:00 PM

Clear night

75° 💧 None 💨 4 mph H 28%29.94 inHg

11:00 PM

Clear night

69° 💧 None 💨 3 mph H 37%29.97 inHg

Friday

2:00 AM

Clear night

66° 💧 None 💨 4 mph H 43%29.97 inHg

5:00 AM

Partly cloudy night

64° 💧 None 💨 4 mph H 47%29.94 inHg

8:00 AM

Partly cloudy

70° 💧 None 💨 5 mph H 39%29.97 inHg

11:00 AM

Sunny

82° 💧 None 💨 6 mph H 28%29.91 inHg

2:00 PM

Sunny

84° 💧 None 💨 8 mph H 24%29.85 inHg

5:00 PM

Sunny

81° 💧 None 💨 9 mph H 24%29.83 inHg

8:00 PM

Clear night

70° 💧 None 💨 4 mph H 34%29.85 inHg

11:00 PM

Clear night

64° 💧 None 💨 4 mph H 40%29.88 inHg

Saturday

5:00 AM

Clear night

64° 💧 None 💨 5 mph H 28%29.85 inHg

11:00 AM

Sunny

57° 💧 None 💨 5 mph H 34%29.85 inHg

5:00 PM

Mostly sunny

75° 💧 None 💨 9 mph H 18%29.85 inHg

11:00 PM

Clear night

73° 💧 None 💨 13 mph H 15%29.77 inHg

Sunday

5:00 AM

Mostly clear night

57° 💧 None 💨 6 mph H 23%29.83 inHg

11:00 AM

Sunny

52° 💧 None 💨 4 mph H 29%29.83 inHg

5:00 PM

Mostly sunny

72° 💧 None 💨 4 mph H 19%29.85 inHg

11:00 PM

Mostly cloudy night

73° 💧 None 💨 5 mph H 22%29.80 inHg

Monday

5:00 AM

Partly cloudy night

57° 💧 None 💨 2 mph H 36%29.88 inHg

11:00 AM

Mostly cloudy

54° 💧 None 💨 1 mph H 36%29.91 inHg

5:00 PM

Sunny

78° 💧 None 💨 5 mph H 12%29.91 inHg

11:00 PM

Clear night

80° 💧 None 💨 4 mph H 12%29.83 inHg

Tuesday

5:00 AM

Clear night

60° 💧 None 💨 2 mph H 27%29.94 inHg

11:00 AM

Sunny

58° 💧 None 💨 1 mph H 28%29.97 inHg

5:00 PM

Sunny

80° 💧 None 💨 7 mph H 21%29.97 inHg

11:00 PM

Clear night

82° 💧 None 💨 5 mph H 15%29.88 inHg

Wednesday

5:00 AM

Clear night

63° 💧 None 💨 3 mph H 30%30.00 inHg

11:00 AM

Sunny

59° 💧 None 💨 2 mph H 34%30.00 inHg

5:00 PM

Sunny

82° 💧 None 💨 4 mph H 19%30.00 inHg

11:00 PM

Clear night

82° 💧 None 💨 6 mph H 17%29.91 inHg

Thursday

5:00 AM

Clear night

63° 💧 None 💨 3 mph H 31%30.00 inHg

11:00 AM

Sunny

57° 💧 None 💨 3 mph H 39%30.00 inHg

5:00 PM

Sunny

81° 💧 None 💨 3 mph H 18%29.97 inHg

11:00 PM

Clear night

82° 💧 None 💨 5 mph H 18%29.88 inHg

Friday

5:00 AM

Clear night

63° 💧 None 💨 3 mph H 33%29.94 inHg

11:00 AM

Sunny

57° 💧 None 💨 3 mph H 36%29.91 inHg

5:00 PM

Sunny

81° 💧 None 💨 3 mph H 18%29.88 inHg

11:00 PM

Clear night

83° 💧 None 💨 4 mph H 16%29.80 inHg

Saturday

5:00 AM

Clear night

64° 💧 None 💨 2 mph H 33%29.88 inHg

11:00 AM

Sunny

59° 💧 None 💨 2 mph H 35%29.88 inHg

5:00 PM

Sunny

82° 💧 None 💨 3 mph H 15%29.91 inHg

11:00 PM

Clear night

83° 💧 None 💨 4 mph H 16%29.83 inHg

Sunday

5:00 AM

Clear night

64° 💧 None 💨 2 mph H 33%29.94 inHg

11:00 AM

Sunny

60° 💧 None 💨 2 mph H 34%29.94 inHg

5:00 PM

Mostly sunny

83° 💧 None 💨 4 mph H 14%29.97 inHg

11:00 PM

Mostly clear night

83° 💧 None 💨 4 mph H 16%29.91 inHg

In Alta Sierra and, more broadly, across the state of California: The rest of the day will feature clear skies and mild to warm temperatures ranging from 70 to 84 degrees Fahrenheit. Winds will be moderate, coming from the northwest at speeds up to 14 mph, with gusts reaching 30 mph. No precipitation is expected, so outdoor plans should be comfortable and dry. As the day progresses, expect continued pleasant weather with the potential for breezy conditions due to the gusty northwest winds. Temperatures will remain steady, making it a good afternoon for outdoor activities.

15-Day Weather Outlook for Alta Sierra

TomorrowTomorrow

Mostly sunny 84°/55° 💧 None 💨 10 mph

Tuesday, Sep 8Tue Sep 8

Mostly cloudy 83°/60° 💧 None 💨 8 mph

Wednesday, Sep 9Wed Sep 9

Overcast 91°/64° 💧 None 💨 5 mph

Thursday, Sep 10Thu Sep 10

Sunny 88°/63° 💧 None 💨 8 mph

Friday, Sep 11Fri Sep 11

Partly cloudy 85°/64° 💧 None 💨 9 mph

Saturday, Sep 12Sat Sep 12

Sunny 81°/57° 💧 0.001 in 💨 9 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 75°/52° 💧 None 💨 13 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 73°/54° 💧 None 💨 5 mph

Tuesday, Sep 15Tue Sep 15

Sunny 80°/58° 💧 None 💨 5 mph

Wednesday, Sep 16Wed Sep 16

Sunny 82°/59° 💧 None 💨 7 mph

Thursday, Sep 17Thu Sep 17

Sunny 82°/57° 💧 None 💨 6 mph

Friday, Sep 18Fri Sep 18

Sunny 82°/57° 💧 None 💨 5 mph

Saturday, Sep 19Sat Sep 19

Sunny 83°/59° 💧 None 💨 4 mph

Sunday, Sep 20Sun Sep 20

Sunny 83°/60° 💧 None 💨 4 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 83°/83° 💧 None 💨 4 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Alta Sierra

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Alta Sierra

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 12:00 PM

PM2.5 Fine particles Good 6,3µg/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 Good 8,7µg/m³

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

O₃ Ozone Fair 72,1µg/m³

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

NO₂ Nitrogen dioxide Good 4,8µg/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 Alta Sierra

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 9,5Very high 🙂Fair

Tomorrow UV 9,2Very high 🙂Fair

Tuesday UV 9,9Very high 🙂Fair

Wednesday UV 9,5Very high 🙂Fair

Thursday UV 7,0High 🙂Fair

Friday UV 7,0High —Unavailable

Saturday UV 7,0High —Unavailable

Hourly UV index today

12:00 PMUV 8,9 1:00 PMUV 9,5 2:00 PMUV 8,5 3:00 PMUV 6,4 4:00 PMUV 3,9 5:00 PMUV 1,7 6:00 PMUV 0,5 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.

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 Alta Sierra

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · ALTA SIERRA, CALIFORNIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 2:00 AM–3:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 2:00 AM–3:00 AM Astronomical darkness: 8:42 PM–5:03 AM

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

☾ Moonlight 21% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 55° 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 min75%

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 Alta Sierra were last refreshed today at 11:06 AM. The current forecast period extends through 08/09/2026 at 9:00 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.