Smiley Park, California 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Running Springs CA
National Weather Service Forecast for:
Running Springs CA
Issued by: National Weather Service San Diego, CA |
Updated: 4:13 pm PDT Jul 25, 2025 |
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Tonight
 Clear
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Saturday
 Sunny
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Saturday Night
 Mostly Clear
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Sunday
 Sunny
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Sunday Night
 Clear
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Monday
 Sunny
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Monday Night
 Clear
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Tuesday
 Sunny
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Tuesday Night
 Clear
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Lo 51 °F |
Hi 69 °F |
Lo 54 °F |
Hi 73 °F |
Lo 58 °F |
Hi 77 °F |
Lo 60 °F |
Hi 79 °F |
Lo 60 °F |
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Tonight
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Clear, with a low around 51. Southeast wind around 5 mph. |
Saturday
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Sunny, with a high near 69. South wind around 5 mph. |
Saturday Night
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Mostly clear, with a low around 54. Calm wind. |
Sunday
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Sunny, with a high near 73. Calm wind becoming southwest around 5 mph in the afternoon. |
Sunday Night
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Clear, with a low around 58. Calm wind. |
Monday
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Sunny, with a high near 77. |
Monday Night
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Clear, with a low around 60. |
Tuesday
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Sunny, with a high near 79. |
Tuesday Night
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Clear, with a low around 60. |
Wednesday
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Sunny, with a high near 79. |
Wednesday Night
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Mostly clear, with a low around 60. |
Thursday
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Sunny, with a high near 78. |
Thursday Night
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Mostly clear, with a low around 61. |
Friday
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Sunny, with a high near 78. |
Forecast from NOAA-NWS
for Running Springs CA.
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Weather Forecast Discussion
091
FXUS66 KSGX 260406
AFDSGX
Area Forecast Discussion
National Weather Service San Diego CA
906 PM PDT Fri Jul 25 2025
.SYNOPSIS...
A trough of low pressure will continue cooler than normal weather
through the weekend. High pressure will have greater influence on
the area from the east, leading to near average temperatures by
next week. Breezy west winds will continue this weekend across
mountains and deserts, while the marine layer covers areas west of
the mountains with low clouds each evening into the morning
hours.
&&
.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
Evening update...
Marine layer low clouds have redeveloped along the coast with
clear skies elsewhere. The marine layer inversion was based near
1900 ft MSL on the 00Z KNKX sounding, down from about 2300 ft MSL
this morning. A weak trough moving inland across California into
Saturday will help deepen the marine layer with low clouds
spreading into the inland valleys by sunrise Saturday. Otherwise
breezy west winds will continue in the mountains and deserts through
late tonight, then strengthening again Saturday afternoon and
evening. Wind gusts will generally be around 25-35 mph, locally
around 50 mph through the San Gorgonio Pass. High temperatures
Saturday will be as much as 10-15 degrees below normal away from
the coast, and around 4-7 degrees below normal near the coast.
Even the inland valleys will barely reach the mid 80s. Only other
thing to note this evening is that ensembles have dried out for
the middle to latter part of next week, with only a few members of
each global ensemble showing an uptick in precipitable water. At
this point chances of monsoon moisture returning are extremely
minimal with southwest flow aloft dominating the pattern.
Previous discussion...
The low will weaken and combine with the mean flow aloft by
Sunday and Monday as a large area of low pressure moves closer to
the Pacific Northwest. As this occurs, high pressure over the
Southern Plains of Texas will expand westward into the Desert
Southwest. This will bring a warming trend to our region by the
early part of next week. By Tuesday into the latter part of next
week, temperatures will plateau near average across the region.
Widespread 90s will return to the Inland Empire/High Desert, near
110 degrees in the lower deserts, with 70s/80s for the mountains,
coastal valleys and beaches. Ensemble models show the weak
troughing pattern continuing into later next week keeping
temperatures near normal. Model differences become more apparent
by the following weekend, some showing higher pressure moving into
the area which would lead to a slow warming trend.
&&
.AVIATION...
260300Z....Coasts/Valleys...Low clouds based at 1500-2000 feet MSL
will move ashore this evening and inland overnight, eventually
filling most of the coastal basin. Areas of reduced vis 1-5SM in the
inland valleys. Low clouds to scatter out Saturday 15-18Z. Low
clouds Saturday evening should develop a little later (after 04Z)
and a little lower (1000-1500 feet MSL) and not extend as far inland
Sunday morning.
Mountains/Deserts...Mostly clear with VFR conditions through
Saturday.
&&
.MARINE...
No hazardous marine conditions are expected through Wednesday.
&&
.SKYWARN...
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.
&&
.SGX WATCHES/WARNINGS/ADVISORIES...
CA...None.
PZ...None.
&&
$$
PUBLIC...SS/APR
AVIATION/MARINE...MM
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