506
FXUS66 KSTO 261848
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
1148 AM PDT Sun Apr 26 2026

.KEY MESSAGES...

 - Light mountain showers and isolated thunderstorms continue
   today into Tuesday, with some potential into the foothills and
   portions of the Valley today.

 - Cooler than normal temperatures today, followed by drier
   weather and a gradual warm up throughout the week.

&&

.DISCUSSION...

...Today-Tuesday...
Latest radar imagery depicts scattered light showers over the
mountains, with isolated light showers across portions of the
Valley. Chances for mountain showers and isolated thunderstorms
persist through early this week as a trough pattern prevails
across interior northern California. Latest WPC guidance indicates
additional precipitation amounts ranging from 0.25-0.50" over the
mountains, with up to 0.75" over the Coast Range. Additional
light snow accumulations of 1 to 3 inches are expected across
northern Sierra passes and the southern Cascades above 5500-6000
feet through Monday evening. Travel impacts should be limited,
with slippery roads at times. In addition, locally breezy south to
southwest wind gusts up to 15-25 MPH continue today, strongest
across the mountains.

Hi-Res guidance shows the potential for isolated thunderstorms to
develop early this afternoon and linger into the overnight hours.
Main thunderstorm hazards include lightning, small hail, gusty
winds, and brief heavy rain so exercise caution if commuting and
find the latest road conditions at quickmap.ca.dot.gov. Lingering
afternoon mountain showers and isolated thunderstorms (10-15%
probability) continue on Monday and Tuesday.

Elsewhere, dry conditions will prevail. Highs will warm into the
upper 60s to 70s in the Valley and foothills, with 40s to low 60s
across higher elevations.

...Mid to Late Week...
Drier and warmer weather is likely across the area as ridging
builds in from the eastern Pacific. Above normal high temperatures
are expected, with mid 70s to mid 80s across the Valley and
foothills and over the mountains.

Ensembles hint at another trough approaching the region late week
into next weekend that may bring unsettled weather and slightly
cooler temperatures.

&&

.AVIATION...

MVFR to VFR conditions into 09z Monday from scattered showers and
isolated thunderstorms with best chances for the Coastal Range
and northern Sac. Valley. Breezy south winds with gusts up to
15-20 kts in the Valley and up to 20-30 kts over the mountains
before lowering to light winds after 10z Monday.

&&

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

$$