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Chester, California 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Chester CA
National Weather Service Forecast for: Chester CA
Issued by: National Weather Service Sacramento, CA
Updated: 5:21 pm PDT Jun 11, 2025
 
Tonight

Tonight: Clear, with a low around 46. Light and variable wind.
Clear
Thursday

Thursday: Sunny, with a high near 81. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Sunny
Thursday
Night
Thursday Night: Clear, with a low around 44. West southwest wind 5 to 7 mph becoming calm  in the evening.
Clear
Friday

Friday: Sunny, with a high near 77. Calm wind becoming southwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Sunny
Friday
Night
Friday Night: Mostly clear, with a low around 42. Southwest wind 5 to 8 mph becoming calm  in the evening. Winds could gust as high as 20 mph.
Mostly Clear
Saturday

Saturday: Sunny, with a high near 79.
Sunny
Saturday
Night
Saturday Night: Partly cloudy, with a low around 44.
Partly Cloudy
Sunday

Sunday: Mostly sunny, with a high near 83.
Mostly Sunny
Sunday
Night
Sunday Night: Partly cloudy, with a low around 46.
Partly Cloudy
Lo 46 °F Hi 81 °F Lo 44 °F Hi 77 °F Lo 42 °F Hi 79 °F Lo 44 °F Hi 83 °F Lo 46 °F

 

Tonight
 
Clear, with a low around 46. Light and variable wind.
Thursday
 
Sunny, with a high near 81. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Thursday Night
 
Clear, with a low around 44. West southwest wind 5 to 7 mph becoming calm in the evening.
Friday
 
Sunny, with a high near 77. Calm wind becoming southwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Friday Night
 
Mostly clear, with a low around 42. Southwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Saturday
 
Sunny, with a high near 79.
Saturday Night
 
Partly cloudy, with a low around 44.
Sunday
 
Mostly sunny, with a high near 83.
Sunday Night
 
Partly cloudy, with a low around 46.
Monday
 
Sunny, with a high near 82.
Monday Night
 
Mostly clear, with a low around 46.
Tuesday
 
Sunny, with a high near 88.
Tuesday Night
 
Clear, with a low around 50.
Wednesday
 
Sunny, with a high near 90.

 

Forecast from NOAA-NWS for Chester CA.

Weather Forecast Discussion
860
FXUS66 KSTO 112001
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
101 PM PDT Wed Jun 11 2025

.DISCUSSION...

.SYNOPSIS...
Broad zonal flow across NorCal for the next few days, leading to
seasonable temperatures and breezy onshore flow. Ensembles
continue to depict weak troughing arriving this weekend, leading
to slightly lower heights and cooler highs over the weekend. Early
next week, troughing moves into the Four Corners region and on
Tuesday areas of breezy north winds may develop, especially in the
northern/central Sacramento Valley with continued onshore flow in
the Delta and vicinity. Warming high temperatures by Tuesday will
also introduce areas of Moderate HeatRisk in the northern
Sacramento Valley, followed by widespread Moderate HeatRisk for
the rest of the area on Wednesday. &&

.KEY MESSAGES...

* Today:

 -Slightly cooler high temperatures across the region today.

 --Probability of Valley High Temperatures > 90F:
  ---Northern/Central Sacramento Valley: 50-80%
  ---Delta, S. Sacramento Valley, N. San Joaquin Valley: 10-40%

 -Breezy onshore flow, strongest in the Delta and vicinity during
  the afternoon and evening.

* Thursday-Next Monday:

 -Gradual cooling trend expected through the remainder of the
  week. Primarily Minor HeatRisk as temperatures become more
  seasonable.

 -Probability of Valley High Temperatures > 90F:
  --Northern/Central Sacramento Valley: 60-90% Thu, 30-60% Fri-
   Mon
  --Delta, S. Sacramento Valley, N. San Joaquin Valley: 50-80% Thu,
   20-40% Fri-Mon

 -Onshore flow expected to persist with periods of breezy winds,
  mainly in the afternoons and evenings and strongest across the
  Delta and vicinity.

* Tuesday:

 - Temperatures begin to warm with triple digit heat in the
   northern Sacramento Valley; low to mid 90s in other Valley
   locations.

 - Periods of breezy north winds possible, mainly in the northern
   Sacramento Valley Tuesday morning/early afternoon as trough is
   expected to translate eastward.

 - Still some ensemble inconsistencies regarding trough`s
   location/strength early next week.

.Changes from previous forecast...
 -No notable forecast changes since last update.

&&

.AVIATION...

VFR conditions expected at Valley TAF sites next 24 hours.
Surface winds generally below 12 kts, although gusts 15-20 kts
expected through Delta and vicinity 21z today through 12z
Thursday.
&&

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

$$
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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