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Solana Beach, California 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Donner Summit CA
National Weather Service Forecast for: Donner Summit CA
Issued by: National Weather Service Sacramento, CA
Updated: 10:21 am PDT Jul 8, 2025
 
Today

Today: Sunny, with a high near 73. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.
Sunny
Tonight

Tonight: Clear, with a low around 46. West southwest wind around 6 mph becoming calm  in the evening.
Clear
Wednesday

Wednesday: Sunny, with a high near 70. West southwest wind 3 to 8 mph. Winds could gust as high as 20 mph.
Sunny
Wednesday
Night
Wednesday Night: Clear, with a low around 47. West wind around 6 mph becoming calm  in the evening.
Clear
Thursday

Thursday: Sunny, with a high near 78. Light and variable wind becoming west southwest around 6 mph in the afternoon.
Sunny
Thursday
Night
Thursday Night: Clear, with a low around 52.
Clear
Friday

Friday: Sunny, with a high near 82.
Sunny
Friday
Night
Friday Night: Clear, with a low around 53.
Clear
Saturday

Saturday: Sunny, with a high near 82.
Sunny
Hi 73 °F Lo 46 °F Hi 70 °F Lo 47 °F Hi 78 °F Lo 52 °F Hi 82 °F Lo 53 °F Hi 82 °F

 

Today
 
Sunny, with a high near 73. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.
Tonight
 
Clear, with a low around 46. West southwest wind around 6 mph becoming calm in the evening.
Wednesday
 
Sunny, with a high near 70. West southwest wind 3 to 8 mph. Winds could gust as high as 20 mph.
Wednesday Night
 
Clear, with a low around 47. West wind around 6 mph becoming calm in the evening.
Thursday
 
Sunny, with a high near 78. Light and variable wind becoming west southwest around 6 mph in the afternoon.
Thursday Night
 
Clear, with a low around 52.
Friday
 
Sunny, with a high near 82.
Friday Night
 
Clear, with a low around 53.
Saturday
 
Sunny, with a high near 82.
Saturday Night
 
Clear, with a low around 53.
Sunday
 
Sunny, with a high near 83.
Sunday Night
 
Clear, with a low around 54.
Monday
 
Sunny, with a high near 83.

 

Forecast from NOAA-NWS for Donner Summit CA.

Weather Forecast Discussion
243
FXUS66 KSTO 072004
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
104 PM PDT Mon Jul 7 2025

.DISCUSSION...

.SYNOPSIS...
Mostly dry with seasonable high temperatures today in the Valley.
Triple-digit highs in portions of the northern Sacramento Valley.
Elevated fire weather conditions from breezy southerly winds and
low daytime humidity values today for portions of the northern
Sacramento Valley. Non-zero chance for an afternoon/evening
shower/t-storm in the mountains of Shasta County today. Slight
cooldown on Tuesday, then warming trend Wednesday through the
weekend, with widespread Moderate HeatRisk Thursday - Sunday.
&&

.KEY MESSAGES...

*  Today-Wednesday:

 - Smoke from the Green wildfire visible on satellite, southerly
   winds helping move plume north of Redding this afternoon
 - Offshore low promoting periods of breezy southerly winds across
   the area today. Low daytime humidity values (15-20%) in
   portions of the northern Sacramento Valley with breezy winds
   (15-25 mph gusts) promote elevated fire weather concerns today.
   Highest threat area: Corning to Shasta Dam, along and west of
   I-5.
 - Non-zero chance (less than 5%) for an afternoon shower/t-storm
   developing in the mountains of Shasta County today. Latest high
   resolution models continue to keep the activity north of our
   area, with better chances around the Mt. Shasta region and into
   Siskiyou, Trinity, and Modoc counties as low moves inland this
   evening. RAP model soundings showing some elevated instability
   with modest CIN, so confidence on development for our area
   remains very low.
 - Brief cooldown on Tuesday, with continued dry and mostly clear
   weather. Bounce back to seasonable temperatures on Wednesday as
   high pressure begins to build in the Desert SW/Four Corners
   region.

*  Thursday - Sunday:
 - On Thursday, trough exits the area, ridge continues to build in
   the Desert SW, promotes a period of northerly winds. Current
   upper level heights/pressure gradient force not indicating an
   overly strong northerly wind setup. NBM forecast winds around
   15-25 mph, strongest in the typical wind prone areas of the
   northern Sacramento Valley.
 - Continued warming, with Moderate HeatRisk in the forecast for
   interior NorCal. Triple-digit highs in the northern and central
   Sacramento Valley and northern San Joaquin Valley Thursday-
   Sunday.
 - Cluster Analysis reveals good agreement of upper level ridging
   dominating our pattern into next week

.Changes from previous forecast...
 - No significant changes to the forecast

&&

.AVIATION...

VFR conditions across interior NorCal next 24 hours. Periods of
breezy onshore winds with gusts up to 15-25 knots in the Delta
vicinity. Breezy southerly/southwesterly wind gusts in the
Sacramento Valley and northwesterly wind gusts in the northern San
Joaquin Valley up to 15-20 kts until 06z Tuesday, and again after
18z Tuesday. Local MVFR conditions possible at times in HZ/FU
vicinity of Shasta County wildfire, including KRDD.

&&

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

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








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