Solana Beach, California 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Donner Summit CA
National Weather Service Forecast for:
Donner Summit CA
Issued by: National Weather Service Sacramento, CA |
Updated: 12:41 pm PDT May 14, 2025 |
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Tonight
 Mostly Clear
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Thursday
 Mostly Sunny
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Thursday Night
 Mostly Cloudy
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Friday
 Partly Sunny
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Friday Night
 Mostly Cloudy
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Saturday
 Chance Showers
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Saturday Night
 Chance Rain/Snow
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Sunday
 Slight Chance Snow Showers then Mostly Sunny
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Sunday Night
 Mostly Clear
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Lo 32 °F |
Hi 59 °F |
Lo 38 °F |
Hi 60 °F |
Lo 39 °F |
Hi 48 °F |
Lo 32 °F |
Hi 50 °F |
Lo 33 °F |
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Tonight
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Mostly clear, with a low around 32. West wind around 6 mph becoming calm in the evening. |
Thursday
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Mostly sunny, with a high near 59. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph. |
Thursday Night
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Mostly cloudy, with a low around 38. West wind 5 to 10 mph becoming light west southwest in the evening. Winds could gust as high as 20 mph. |
Friday
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Partly sunny, with a high near 60. Calm wind becoming west 5 to 7 mph in the afternoon. |
Friday Night
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Mostly cloudy, with a low around 39. West wind 5 to 7 mph becoming calm in the evening. |
Saturday
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A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 48. Chance of precipitation is 50%. |
Saturday Night
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A chance of rain showers before 8pm, then a chance of rain and snow showers between 8pm and 2am, then a chance of snow showers after 2am. Mostly cloudy, with a low around 32. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible. |
Sunday
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A slight chance of snow showers before 11am. Mostly sunny, with a high near 50. |
Sunday Night
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Mostly clear, with a low around 33. |
Monday
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Sunny, with a high near 62. |
Monday Night
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Clear, with a low around 38. |
Tuesday
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Sunny, with a high near 65. |
Tuesday Night
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Clear, with a low around 39. |
Wednesday
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Sunny, with a high near 69. |
Forecast from NOAA-NWS
for Donner Summit CA.
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Weather Forecast Discussion
525
FXUS66 KSTO 141952
AFDSTO
Area Forecast Discussion
National Weather Service Sacramento CA
1252 PM PDT Wed May 14 2025
.Discussion...
.Synopsis...
Drier and warmer weather persist through Friday, with
occasionally breezy winds through the end of the week. The next
weather system then looks to arrive by the weekend, bringing
mountain/foothills thunderstorm chances Saturday, followed by
gusty and drying north winds Sunday into next week. Resultant
elevated fire weather conditions are anticipated Sunday and
Monday, potentially lingering into Tuesday, throughout the Valley
due to the gusty winds and expected low relative humidity.
&&
.Key Messages...
* Today-Friday:
-Dry weather and warm temperatures persist with areas of Minor
HeatRisk in the Valley.
-Occasionally breezy winds, with some north-northwest gusts in
the northern/central Sacramento Valley Thursday evening.
--Probability of wind gusts > 30 mph late Thursday-early Friday:
20-50% along and west of Interstate 5.
* Saturday:
-Weather system begins to drop southward from Pacific NW.
-15-35% probability of isolated thunderstorms, highest chances
across the northern Sacramento Valley and along the
Sierra/southern Cascades and adjacent foothills from Interstate
80 northward.
-Slight chance of light snowfall above 6000 feet late Saturday-
Sunday morning. Probability of snowfall > 1": 10-30% along
Sierra/southern Cascades.
-Temperatures cooling to near normal, with breezy winds
throughout the day.
* Sunday - Tuesday:
-Current ensemble trends indicate the expected weather system
following an inside slider trajectory through the region.
-Gusty north to east winds expected to develop Sunday and Monday
as this system progresses, with lingering breezy winds into
Tuesday.
-Probability of gusts 40 mph or higher:
--Sunday: 40-70%, highest along and west of I-5 in the Sacramento
Valley.
--Monday & Tuesday: 20-50% across the northern/central
Sacramento Valley and Delta.
-Elevated fire weather conditions expected Sunday and Monday,
potentially lingering into Tuesday, due to the combination of
gusty northerly winds and low relative humidity in the
Sacramento Valley.
-Warming trend expected early to mid next week, with areas of
Moderate HeatRisk across the Valley.
.Changes from previous forecast...
-Shower and thunderstorm chances shifting primarily to Interstate
80 northward on Saturday.
-Slight chance of light snow along Sierra/southern Cascades above
6000 feet.
-Elevated fire weather conditions potentially continue into
Tuesday.
-Areas of Moderate HeatRisk for the Valley expected Monday-
Tuesday of next week.
&&
.AVIATION...
VFR conditions expected to prevail at TAF sites next 24 hours.
North-northwest winds remain breezy through the day, then becoming
lighter after 06z. Winds generally expected to remain 12 kts or
less, although some southwesterly gusts to 20 kts possible with
Delta breeze influence 00z - 06z.
&&
.STO WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
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