Vallecito, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

099
FXUS66 KSTO 042000
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
100 PM PDT Mon Aug 4 2025

.DISCUSSION...

.SYNOPSIS...
Cooler and quiet weather today ahead of a warm up expected mid to
late week with areas of Moderate HeatRisk developing late this
week into the weekend.

&&

.KEY MESSAGES...

* Monday:
 - Near to below normal temps today with upper 80s to mid 90s
   expected and breezy southwest winds in the afternoon, strongest
   across the Delta.

*Tuesday-Friday:
 - Gradual warming and drying trend expected mid to late week as
   Desert Southwest ridging amplifies.
 - Periodically breezy onshore flow looks to continue as split
   flow aloft persists over interior NorCal.
 - High temperatures trend slightly above normal by the end of the
   week, with 90s to lower triple digits through the Valley,
   Delta, and foothills resulting in areas of Moderate HeatRisk by
   Friday into the weekend.

.Changes from previous forecast...
- No major changes from previous forecast.

 &&

.AVIATION...

Generally VFR conditions expected to prevail next 24
hours across interior NorCal. Breezy onshore surface winds up to
12 kts expected through Valley and Delta with gusts 12-20 kts in
the Valley until 06Z Tuesday and up to 20-25 kts in the Delta and
vicinity area until1 12z Tuesday.

&&

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

$$