Alta Sierra 7 Day Weather Forecast with Current Weather Conditions for , CA." />

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Alta Sierra, California 7 Day Weather Forecast

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NWS Forecast for Alta Sierra CA

National Weather Service Forecast for: Alta Sierra CA
Issued by: National Weather Service Sacramento, CA

Updated: 9:51 pm PDT Apr 24, 2025

Overnight Mostly Cloudy	Friday Mostly Cloudy then Slight Chance Showers	Friday Night Chance Showers	Saturday Showers Likely	Saturday Night Showers Likely	Sunday Chance Showers then Partly Sunny	Sunday Night Partly Cloudy	Monday Sunny	Monday Night Clear
Lo 43 °F	Hi 58 °F	Lo 41 °F	Hi 53 °F	Lo 42 °F	Hi 55 °F	Lo 41 °F	Hi 69 °F	Lo 48 °F

Overnight	Mostly cloudy, with a low around 43. Calm wind.
Friday	A slight chance of showers between 2pm and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 58. Calm wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 20%.
Friday Night	A 40 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 41. South wind around 6 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Saturday	Showers likely, mainly after 11am. Mostly cloudy, with a high near 53. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night	Showers likely, mainly after 11pm. Mostly cloudy, with a low around 42. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Sunday	A 30 percent chance of showers before 11am. Mostly cloudy, with a high near 55.
Sunday Night	Partly cloudy, with a low around 41.
Monday	Sunny, with a high near 69.
Monday Night	Clear, with a low around 48.
Tuesday	Sunny, with a high near 73.
Tuesday Night	Partly cloudy, with a low around 52.
Wednesday	Sunny, with a high near 76.
Wednesday Night	Mostly clear, with a low around 52.
Thursday	Sunny, with a high near 76.

Forecast from NOAA-NWS for Alta Sierra CA.

Weather Forecast Discussion

492
FXUS66 KSTO 242023
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
123 PM PDT Thu Apr 24 2025

For additional details on weather and expected impacts over the next 7 days,
please visit weather.gov/sto/briefing.

.Discussion...

.Synopsis...
Chances for afternoon and evening showers are in store for
interior NorCal into the early weekend, with Friday-Saturday as
the best days for widespread precipitation and thunderstorm
development. A cooling trend with mountain snow on Saturday is
expected with minor travel impacts; A Winter Weather Advisory has
been issued for locations above 6000 ft from Friday evening to
Sunday morning.

&&

.Key Messages...

* Today: Cooling trend with breezy to gusty onshore winds

-Probability of high temperatures 75 degrees F or higher: 45-80%
     in the central and northern Sacramento Valley

-10-25% chance of isolated showers or thunderstorms this
     afternoon and evening across northern Sacramento Valley and
     surrounding terrain.


* Friday-Weekend:

-Cooling trend with breezy to gusty onshore winds continues

-More widespread showers and thunderstorms (10-20%) starting
     Friday evening and continuing through the weekend.

-Snow expected above 6000 feet late Friday through early Sunday
-40-75% probability of 4 inches or more of snowfall above 6000 feet
     along Sierra/southern Cascades, 30-50% of 6 inches or more.

* Monday-Wednesday:

-Warming trend begins along with drier weather

.Changes from previous forecast...

* Winter Weather Advisory issued from 5pm Friday to 10am Sunday

* Snow probabilities increased for Friday evening into early
  Sunday morning

&&

.AVIATION...
VFR conditions across interior NorCal next 24 hours. South to
west winds up to 12 to 14 kt, with gusts up to around 20 kts for
TAF sites. Marine stratus could bring local MVFR ceilings over the
Sacramento metro area 14-18Z Friday. &&

.STO WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory from 5 PM Friday to 11 AM PDT Sunday for
West Slope Northern Sierra Nevada-Western Plumas County/Lassen
Park.

&&

$$

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Forecast Discussion from: NOAA-NWS

Script developed by: El Dorado Weather

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