New York, NY 23° Los Angeles, CA 32° Chicago, IL 25° Houston, TX 26° Miami, FL 27° Phoenix, AZ 46° Seattle, WA 24° Denver, CO 31° Toronto, ON 23° Vancouver, BC 21°
WeatherLive › California › Alta Sierra

Alta Sierra, CA Weather

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherAlta Sierra · 5:52 PM PDT
37° | 24°
36°C
Feels like 33°
Mostly cloudy
WindW 8 mph · Gusts 11 mph
Precip7% · –
Humidity16% · Dew point 7°
UV index10 Very high
Air Quality75 Moderate
Pressure29.94 inHg
Visibility6 mi
Sunrise / Sunset6:22 AM · 7:28 PM · 13h 6m

Weather map — Alta Sierra

Full radar →
Now
36°
9%
8 mph
18:00
34°
9%
7 mph
19:00
32°
9%
5 mph
20:00
31°
9%
2 mph
21:00
29°
7%
3 mph
22:00
25°
6%
2 mph
23:00
24°
11%
3 mph
00:00
24°
11%
3 mph
01:00
24°
9%
2 mph
02:00
23°
3%
2 mph
03:00
23°
3%
2 mph
04:00
22°
3%
2 mph
05:00
22°
3%
2 mph
06:00
22°
3%
3 mph
07:00
24°
10%
1 mph
08:00
20°
10%
2 mph
09:00
23°
9%
5 mph
10:00
24°
8%
6 mph
11:00
26°
8%
8 mph
12:00
27°
8%
10 mph
13:00
27°
9%
10 mph
14:00
27°
5%
11 mph
15:00
27°
9%
10 mph
16:00
26°
2%
9 mph

Today · Thu 8/27

High 37°
7% / –

Mostly cloudy. Winds W at 10 mph.

Tonight · Thu 8/27

Low 20°
7% / –

Mostly cloudy. Winds W at 3 mph.

Tomorrow · Fri 8/28

27° | 20°
4% / –

Sunny. Winds W at 11 mph.

7-day trend

Alta Sierra · temperature + precipitation

10-day forecast

Updated 5:52 PM

Details & indices

Wind
8 mph W
Gusts 11 mph
Humidity
16%
Dew point 7°
Pressure
29.94 inHg
Rising
UV index
10 — Very high
High today
Air Quality
Moderate
AQI 75 · US EPA
Allergy
Very high
Grass
Visibility
6 mi
Clear view
Allergy — Alta Sierra

🌿 Conditions right now

View all →
Birch
None
Grass
High
Oak
None
Alder
None
Hazel
None
Mugwort
High
Ragweed
Low

Sun & moon

Sunrise6:22 AM
Sunset7:28 PM
Length of day13h 6m
Moonrise7:20 PM
Moonset5:48 AM
Moon phase🌕 Full Moon · 100%
Next full moonAug 27 Sturgeon Moon
Latitude35.7313°N
Longitude-118.5539°E

Water temps nearby

View all →
No beaches within 50 miles
🌧️Rain now — should taper off around 6:00 PM (8 min)
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Great
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Great
Dinner outdoors
Nearby places in {{REGION}}
Los Angeles
Mostly cloudy
32°
San Diego
Mostly cloudy
26°
San Jose
Mostly cloudy
28°
San Francisco
Mostly cloudy
24°
Fresno
Mostly cloudy
38°
Sacramento
Mostly cloudy
37°
Data sources · Thursday, August 27
Where the Alta Sierra forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 35.7313°N, -118.5539°.
NBM + global weather models
Updated: 5:52 PM
Weather in Alta Sierra
The 10-day span for Alta Sierra runs from a high near 37° on Thursday down to 10° overnight on Saturday. The gauge should stay near zero — no meaningful precipitation is expected. No active NWS alerts at the moment — quiet on the hazards front. Right now Alta Sierra is running about 69° warmer than Santa Clarita. Longer view: Mediterranean pattern — nearly all rain lands November through March.
Alta Sierra, CA · Elev 5,719 ft · 35.73°N, 118.55°W · California · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 5:52 PM