787
FXUS66 KSTO 271919
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
1219 PM PDT Fri Mar 27 2026

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

.KEY MESSAGES...

 - Well above normal temperatures continue through the weekend
   with Minor HeatRisk and dry conditions

 - Significant pattern change next week brings rain and mountain
   snow chances, thunderstorms, breezy winds and cooler
   temperatures back to the region

&&

.DISCUSSION...

...Through Sunday...
Current GOES-West visible satellite imagery depicts partly to
mostly sunny skies with some mid to high level clouds spreading
across interior northern California on this Friday afternoon.
Temperatures are currently trending approximately 5 to 10 degrees
warmer than this time yesterday. Widespread Minor HeatRisk is
expected for much of the forecast area the next few days, with
high temperatures of 70s to 80s in the Valley and foothills, and
60s to 80s in the mountains. Dry weather prevails through Sunday.
Individuals should continue to practice heat safety and use
caution and life jackets near cold area waterways.

...Next Week...
Ensemble guidance and cluster analysis continue to support a
significant pattern change next week as a Spring storm impacts
northern California. This will bring along chances for light rain,
thunderstorms, mountain snow, breezy winds and cooler temperatures.
Highs during this time are forecast to be in the 60s to 70s in
the Valley, 50s to 60s in the foothills, and 30s to 50s over the
mountains by Tuesday. These temperatures will be trending closer
to the climatological normal for late March and early April. Right
now the National Blend of Models offers a 10 to 15 percent chance
of thunderstorms Tuesday and Wednesday and potentially lingering
into Thursday, including the overnight periods. We will be
monitoring for the potential for a Shasta Convergence Zone. The
latest precipitation and snow forecast has trended slightly lower,
however an overall wetter and cooler pattern is favored for much
of next week. Plan ahead by viewing your local weather forecast
information at weather.gov and check back frequently for details
as we get closer!

&&

.AVIATION...
VFR conditions expected across interior NorCal sites next 24
hours. Breezy north winds up to 12 kts possible through 00z
Saturday at RDD and RBL, otherwise light winds expected elsewhere
across the forecast period.

&&

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

&&

$$