National Weather Service Forecast for: Placerville CA
Issued by: National Weather Service Sacramento, CA
Updated: 12:41 pm PDT Mar 28, 2024

Placerville
 
Overnight

Overnight: Mostly cloudy, with a low around 40. Calm wind.
Mostly Cloudy

Friday

Friday: Showers likely, mainly after 1pm.  Mostly cloudy, with a high near 50. Light and variable wind becoming south southeast 10 to 15 mph in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers then
Showers
Likely
Friday
Night
Friday Night: Showers.  Low around 41. Southeast wind 11 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Showers

Saturday

Saturday: Showers, with thunderstorms also possible after noon.  High near 53. East southeast wind 5 to 8 mph becoming west southwest in the afternoon.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers

Saturday
Night
Saturday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 40. North wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 40%.
Chance
Showers

Sunday

Sunday: A 30 percent chance of showers, mainly after noon.  Partly sunny, with a high near 55.
Chance
Showers

Sunday
Night
Sunday Night: Mostly clear, with a low around 38.
Mostly Clear

Monday

Monday: Sunny, with a high near 64.
Sunny

Monday
Night
Monday Night: Clear, with a low around 43.
Clear

Lo 40 °F Hi 50 °F Lo 41 °F Hi 53 °F Lo 40 °F Hi 55 °F Lo 38 °F Hi 64 °F Lo 43 °F

 

Overnight
 
Mostly cloudy, with a low around 40. Calm wind.
Friday
 
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 50. Light and variable wind becoming south southeast 10 to 15 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
 
Showers. Low around 41. Southeast wind 11 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
 
Showers, with thunderstorms also possible after noon. High near 53. East southeast wind 5 to 8 mph becoming west southwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 40. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.
Sunday
 
A 30 percent chance of showers, mainly after noon. Partly sunny, with a high near 55.
Sunday Night
 
Mostly clear, with a low around 38.
Monday
 
Sunny, with a high near 64.
Monday Night
 
Clear, with a low around 43.
Tuesday
 
Sunny, with a high near 68.
Tuesday Night
 
Clear, with a low around 46.
Wednesday
 
Sunny, with a high near 70.
Wednesday Night
 
Mostly clear, with a low around 46.
Thursday
 
Mostly sunny, with a high near 63.

 

Forecast from NOAA-NWS for Placerville CA.


NWS Local Northern CA. Outlook Discussion


000
FXUS66 KSTO 282027
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
127 PM PDT Thu Mar 28 2024

.Synopsis...
Periods of moderate to heavy mountain snow, rain showers, breezy
southerly winds, and isolated thunderstorms will be possible into
the weekend. Dry weather and a return to near to above normal
temperatures is then anticipated early to mid next week.

&&

.Discussion...
Afternoon radar imagery shows shower activity across portions of
the northern Sacramento Valley, Coastal Range, and the northern
Sierra. Light snowfall accumulations are expected the rest of
today with snow levels 3500-4500 ft and minimal impacts. HREF
depicts the potential for isolated thunderstorms (10-20%
probability) across portions of the Sacramento Valley and
foothills from I-80 northward this afternoon and evening. Main
storm threats include brief heavy rain, small hail, lightning, and
gusty winds.

Ensembles and clusters show an upper level low deepening along
the West Coast through the end of the week and into the weekend.
This system will bring breezy winds, widespread rain, and
moderate to heavy mountain snow Friday into Saturday. WPC guidance
indicates 0.5-1" of precipitation in the Valley and foothills and
0.50-1.5+" over the mountains through early Sunday morning. In
addition, gusty southerly winds develop Friday afternoon and
evening, generally along I-80 southward. The National Blend of
Models (NBM) indicates a 50-70% probability of southerly wind
gusts of at least 35 mph. Wind gusts up to 30-35 mph will be
possible.

Snow levels will range from 3500 to 4500 ft with this system. NBM
depicts a 30-65% probability of 12 inches of snow above 5000 ft
Friday morning through Sunday morning. Heaviest snowfall, with
rates up to 1 inch per hour at times, is expected to occur from
I-80 southward Friday afternoon into Saturday afternoon. A Winter
Storm Warning has been issued for the northern Sierra and southern
Cascades for elevations above 4000 feet from Friday morning
through Sunday afternoon, and for the Coastal Range from Friday
morning through Saturday afternoon above 4000 feet. Moderate to
heavy mountain snow is expected during this time period, with
snow totals from 4 to 8 inches above 4000 feet, 8 to 20 inches
above 5000 feet, and up to 30 inches at the peaks. As a result,
holiday mountain travel impacts are anticipated with periods of
snow covered roads, travel delays, and chain controls.

The NBM projects a 20-30% probability of thunderstorm development
Saturday afternoon and evening, primarily across foothills and
Valley locations from I-80 southward. Small hail, lightning,
brief heavy rain and gusty winds are possible with any
thunderstorms that develop.

Lingering light showers are anticipated on Sunday, mainly over
the Sierra foothills and mountains with little to no impacts.
Otherwise, dry conditions are expected with afternoon high
temperatures rising into the mid 60s in the Valley.

&&

.EXTENDED DISCUSSION (Monday THROUGH Thursday)...
Dry and warm weather expected over the area as upper level
ridging develops in the PacNW. Above normal temperatures are
anticipated Monday through Wednesday, with areas in the northern
Sacramento Valley approaching 80 for afternoon high temperatures.
As we move throughout Wednesday, ridging is expected to break down
and move off towards the east as a deepening shortwave trough
approaches the area Wednesday night and into Thursday. There is
disagreement amongst Clusters regarding the timing of when the
shortwave trough will impact the area, but there is agreement of a
pattern change near the end of the extended period. The National
Blend of Models (NBM) suggests precipitation chances return
Thursday in far northern Shasta and Lassen Counties, then
spreading mainly over the Sierra as we move through the day.

&&

.AVIATION...
Locally MVFR/IFR possible from showers the next 24 hours,
otherwise mostly VFR conditions prevail. Isolated thunderstorms
will be possible through the afternoon/evening hours, mainly at
the northern Sac Valley sites. Surface winds up to 20 knots until
03Z Friday, then lowering to below 12 knots. In
foothills/mountains, local surface wind gusts of 35 knots or more
over higher terrains, snow levels remain around 3500-4500 feet.

&&

.STO WATCHES/WARNINGS/ADVISORIES...
Winter Storm Warning from 8 AM Friday to 5 PM PDT Saturday for
Mountains Southwestern Shasta County to Western Colusa County-
Shasta Lake Area / Northern Shasta County.

Winter Storm Warning from 8 AM Friday to 5 PM PDT Sunday for
West Slope Northern Sierra Nevada-Western Plumas County/Lassen
Park.

&&

$$
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