National Weather Service Forecast for: Placerville CA
Issued by: National Weather Service Sacramento, CA
Updated: 1:39 pm PDT Apr 20, 2021

Placerville
 
Tonight

Tonight: A 20 percent chance of showers and thunderstorms before 11pm.  Mostly clear, with a low around 46. East southeast wind around 5 mph becoming calm  in the evening.
Slight Chance
T-storms then
Mostly Clear
Wednesday

Wednesday: Sunny, with a high near 71. Light and variable wind becoming west southwest 5 to 7 mph in the afternoon.
Sunny

Wednesday
Night
Wednesday Night: Clear, with a low around 47. West wind around 6 mph becoming calm.
Clear

Thursday

Thursday: Sunny, with a high near 74. East wind 5 to 7 mph becoming west southwest in the afternoon.
Sunny

Thursday
Night
Thursday Night: Mostly clear, with a low around 48. Light and variable wind becoming east southeast 5 to 8 mph after midnight.
Mostly Clear

Friday

Friday: Sunny, with a high near 75.
Sunny

Friday
Night
Friday Night: Partly cloudy, with a low around 49.
Partly Cloudy

Saturday

Saturday: Partly sunny, with a high near 67.
Partly Sunny

Saturday
Night
Saturday Night: A chance of showers, mainly after 11pm.  Mostly cloudy, with a low around 45.
Chance
Showers
Lo 46 °F Hi 71 °F Lo 47 °F Hi 74 °F Lo 48 °F Hi 75 °F Lo 49 °F Hi 67 °F Lo 45 °F

 

Tonight
 
A 20 percent chance of showers and thunderstorms before 11pm. Mostly clear, with a low around 46. East southeast wind around 5 mph becoming calm in the evening.
Wednesday
 
Sunny, with a high near 71. Light and variable wind becoming west southwest 5 to 7 mph in the afternoon.
Wednesday Night
 
Clear, with a low around 47. West wind around 6 mph becoming calm.
Thursday
 
Sunny, with a high near 74. East wind 5 to 7 mph becoming west southwest in the afternoon.
Thursday Night
 
Mostly clear, with a low around 48. Light and variable wind becoming east southeast 5 to 8 mph after midnight.
Friday
 
Sunny, with a high near 75.
Friday Night
 
Partly cloudy, with a low around 49.
Saturday
 
Partly sunny, with a high near 67.
Saturday Night
 
A chance of showers, mainly after 11pm. Mostly cloudy, with a low around 45.
Sunday
 
Showers likely, mainly after 11am. Cloudy, with a high near 53.
Sunday Night
 
Showers likely. Mostly cloudy, with a low around 41.
Monday
 
A chance of showers. Partly sunny, with a high near 58.
Monday Night
 
A slight chance of showers. Partly cloudy, with a low around 42.
Tuesday
 
A slight chance of showers. Mostly sunny, with a high near 64.

 

Forecast from NOAA-NWS for Placerville CA.


NWS Local Northern CA. Outlook Discussion


000
FXUS66 KSTO 202112
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
212 PM PDT Tue Apr 20 2021

.SYNOPSIS...
Cooler today with the chance of mainly mountain showers and
thunderstorms. A few showers possible Wednesday in the Sierra
south of Tahoe. Otherwise dry and warmer weather returns through
the end of the week. Chance of precipitation returns this weekend.

&&

.DISCUSSION...
A robust short wave and vort max is begining to push into the NW
part of the state this afternoon. This vort max has brought
showers to far northern CA this morning and we are starting to see
these showers spread south. Mesoscale Analysis has generally
100-250 j/kg of uncapped CAPE from about Chico north and models
build in as much as 500+ j/kg of CAPE by the evening mainly from
Sacramento north. Showers and a few thunderstorms will be
possible even in the Valley given the CAPE as the vort max pushes
over the region but the best chances will remain over the higher
elevations. Current PWATS are between 0.20 and 0.60" and we will
see moisture continue to build into the region this evening with
PWATS reaching 0.75" in some areas. This will bring a heavy rain
threat with any convection but soundings due have an inverted V
look to them in the Valley and that should limit the heavy rain
potential for lower elevations and bring more of a gusty wind
threat. With more moist low levels over the higher elevations that
is where the heavy rain threat will be greatest. Rain rates are
expected to remain below flash flood guidance over the burn scars
but up to 0.60" of rain in an hour will be possible over portions
of the North Complex, Camp Fire Burn Scar and August Complex.
With limited low level shear storms will likely pulse up and
quickly pulse down.

Shower chances will continue to push south into the evening but
dry low levels and limited CAPE will really limit activity as it
reaches the Sacramento area. Mainly dry conditions can be
expected overnight. The upper level trough will push into NV
during the morning tomorrow and we will see some CAPE build in
over the Sierra from I-80 south. This will bring a threat of a few
showers and thunderstorms once again for tomorrow but coverage
will be very limited to I-80 south over the Sierra. Wind will be
the other impact with this system and we are seeing some breezy
northerly winds over the northern Sacramento Valley this
afternoon. These winds will calm some overnight before picking
back up tomorrow mid to late morning into the afternoon. Most of
the region is seeing onshore flow today and that is keeping
humidity levels up but that will not be the case tomorrow and
some single digit humidity reading look possible over the northern
Sacramento Valley during the afternoon. This will bring some
increased fire weather concerns given the increased wind with it.

Upper level ridging builds in on Wednesday and that will bring a
period of quiet weather into Friday with less wind. A short wave
trough will approach the northern part of the state Friday night
and we could see a few light showers develop over the Shasta
County Mountains overnight. Highs will continue to run 6-12
degrees above average this week with today being the coolest day
in the short term.

-CJM

&&

.EXTENDED DISCUSSION (Saturday THROUGH Tuesday)...
Cluster analysis has come into better agreement about an
unsettled weather pattern impacting Northern California this
Sunday into next week. We will likely see cooler temperatures as a
trough makes it way into the region. We are also forecasting
widespread precip chances across Northern California Sunday into
early next week. Best chances will be for higher elevation
locations, however Valley rain will be possible. Snow showers will
likely bring travel impacts to Sierra Passes particularly on
Sunday. Some uncertainty still exists with timing and amounts as
depicted by cluster analysis so check back for updates.

&&

.AVIATION...
Widespread VFR with MVFR possible due to passing shower activity.
Isolated thunderstorms could impact Sacramento Valley and
Sacramento Metro area TAF sites. IFR possible under any isolated
heavy showers that may develop. Locally gusty northerly winds 20
to 30 kts over Northern Sacramento Valley and Southwesterly gusts
up to 25 kts through Delta region decreasing after around 4 UTC.

&&

.STO WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$
View a Different U.S. Forecast Discussion Location
(In alphabetical order by state)


Hazardous Weather Outlook





No Hazardous Weather Is Expected At This Time



View a Different U.S. Hazardous Weather Location
(In alphabetical order by state)






Google
[Search either this Site or the Web]