408
FXUS66 KSTO 071927
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
1227 PM PDT Tue Apr 7 2026

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

.KEY MESSAGES...

 - Dry and warm weather expected today into early Wednesday

 - Cooler temperatures and active weather late week through the
   weekend with rain, strong to severe thunderstorms and mountain
   snow showers

&&

.DISCUSSION...

...Today through Wednesday AM...
Current GOES-West visible satellite imagery illustrates partly to
mostly sunny skies being observed across interior northern
California on this Tuesday afternoon. Temperatures are currently
trending approximately 5 to 10 degrees cooler than this time
yesterday. The upper level pattern will feature ridging that will
bring continued dry and warm weather today and into early
Wednesday. Forecast highs will reach the 70s to 80s in the Valley
and foothills and 60s to 70s in the mountains today and
Wednesday. Minor HeatRisk is forecast for the lower elevations
both days. A weak Delta breeze will help bring some minor late day
cooling to the Delta vicinity again this evening with gusts to 15
to 20 mph.

...Wednesday PM through the Weekend...
Ensemble guidance supports a pattern change to upper level
troughing for late week and over the weekend, bringing along a
renewal of cooler and active weather to the region. High
temperatures will be cooler and more seasonable for early to mid
April climatology by Friday, in the 60s to 70s in the Valley and
foothills, and the 50s to 60s in the mountains. The threat for
thunderstorms is still on track over the coming days. On Wednesday
and into the overnight the threat is mainly over the northern
Sacramento Valley and surrounding terrain, with the chances
becoming more widespread across the forecast area by Thursday and
Friday where there is potential for some severe storms. Saturday
and Sunday will also see some lingering chances. Showers are
forecast as well, along with some mountain snow showers by the
weekend as snow levels lower to below pass level. Right now there
is a 50 percent chance of snowfall greater than 6 inches above
6000 feet from Friday through Sunday. Precipitation looks to
become more showery and begin to taper off later in the weekend
into early Monday. Be sure to stay up to date with the latest
forecast information as details become more clear at weather.gov!

&&

.AVIATION...
VFR conditions are forecast to prevail over interior northern
California over most of the next 24 hours. Light precipitation
expected in the mountains and northern Sacramento Valley after 20z
Wednesday. Surface winds generally at/below 12 kt in the Valley;
locally higher speeds in the mountains.

&&

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

&&

$$