Mill Creek, California 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for 15 Miles W Chester CA
National Weather Service Forecast for:
15 Miles W Chester CA
Issued by: National Weather Service Sacramento, CA |
Updated: 12:11 pm PDT Aug 1, 2025 |
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This Afternoon
 Sunny
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Tonight
 Mostly Clear
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Saturday
 Sunny
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Saturday Night
 Clear
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Sunday
 Sunny
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Sunday Night
 Mostly Clear
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Monday
 Sunny
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Monday Night
 Clear
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Tuesday
 Sunny
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Hi 82 °F |
Lo 48 °F |
Hi 81 °F |
Lo 48 °F |
Hi 79 °F |
Lo 44 °F |
Hi 75 °F |
Lo 45 °F |
Hi 81 °F |
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This Afternoon
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Sunny, with a high near 82. West southwest wind 6 to 8 mph. |
Tonight
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Mostly clear, with a low around 48. West southwest wind around 5 mph becoming calm in the evening. |
Saturday
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Sunny, with a high near 81. Calm wind becoming west 5 to 8 mph in the afternoon. |
Saturday Night
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Clear, with a low around 48. West southwest wind 5 to 7 mph becoming calm in the evening. |
Sunday
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Sunny, with a high near 79. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph. |
Sunday Night
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Mostly clear, with a low around 44. |
Monday
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Sunny, with a high near 75. |
Monday Night
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Clear, with a low around 45. |
Tuesday
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Sunny, with a high near 81. |
Tuesday Night
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Clear, with a low around 47. |
Wednesday
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Sunny, with a high near 83. |
Wednesday Night
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Mostly clear, with a low around 50. |
Thursday
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Sunny, with a high near 87. |
Forecast from NOAA-NWS
for 15 Miles W Chester CA.
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Weather Forecast Discussion
047
FXUS66 KSTO 011934
AFDSTO
Area Forecast Discussion
National Weather Service Sacramento CA
1234 PM PDT Fri Aug 1 2025
.DISCUSSION...
.SYNOPSIS...
Chances for afternoon and evening thunderstorms continue through
the weekend primarily across the Coast Range and Shasta County
mountains. Near to slightly below normal temperatures are expected
into the weekend and early next week as periodically breezy
onshore winds continue. A warming and drying trend is then
anticipated from mid week onward with areas of Moderate HeatRisk
returning by late next week.
&&
.KEY MESSAGES...
* Today - Sunday:
- Thunderstorm chances around 10-25% across the Coast Range and
Shasta County mountains in the afternoon/evening. Highest
chances today and Sunday.
- Main storm hazards include lightning, brief heavy rain, gusty
winds, small hail, and possible fire starts. Short term model
trends indicate best thunderstorm chances from 3-8 PM.
- Elevated fire weather conditions are expected in the mountains
due to the lightning and gusty outflow wind threat and any
strikes outside the main precipitation cores will pose the
threat for fire starts.
- Afternoon highs in the 90s throughout the Valley as high
temperatures remain seasonable through the weekend.
- Periodically breezy onshore flow expected during the afternoons
and evenings.
- Probability of south to west wind gusts across the Delta and
adjacent Valley > 30 mph on Sunday: 60-90%
* Next Week:
- Slight cool down on Monday as a quick moving system on Sunday
exits the region.
- Gradual warming and drying trend expected mid to late week as
Desert Southwest ridging amplifies.
- Periodically breezy onshore flow looks to continue as split
flow aloft persists over interior NorCal.
- High temperatures trend slightly above normal by the end of the
week, with 90s to lower triple digits through the Valley,
Delta, and foothills resulting in areas of Moderate HeatRisk.
.Changes from previous forecast...
- Slight chances for isolated mountain thunderstorms across the
Coast Range and Shasta County mountains continues through the
weekend.
- Warming trend expected from midweek onward with Moderate
HeatRisk by late next week.
&&
.AVIATION...
Generally VFR conditions expected to prevail next 24 hours across
interior NorCal. MVFR/IFR possible in isolated mountain
showers/thunderstorms across Shasta County terrain today until
around 04z Sat. Otherwise, breezy onshore surface winds up to 12
kts expected through Valley and Delta, with lighter terrain driven
winds at higher elevations. Gusts 20-25 kts in Delta and vicinity
area from until 09z Saturday, decreasing through the early
morning.
&&
.STO WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
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