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Mariposa, California 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Mariposa CA
National Weather Service Forecast for:
Mariposa CA
Issued by: National Weather Service San Joaquin Valley/Hanford, CA |
| Updated: 12:57 am PST Dec 19, 2025 |
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Overnight
Partly Cloudy
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Friday
Chance Rain
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Friday
Night
Rain Likely
and Patchy
Fog
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Saturday
Rain Likely
and Patchy
Dense Fog
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Saturday
Night
Rain and
Patchy Fog
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Sunday
Showers
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Sunday
Night
Showers
Likely
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Monday
Showers
Likely
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Monday
Night
Chance
Showers
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| Lo 47 °F |
Hi 60 °F |
Lo 51 °F |
Hi 57 °F |
Lo 51 °F |
Hi 57 °F |
Lo 50 °F |
Hi 57 °F |
Lo 48 °F |
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Overnight
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Partly cloudy, with a steady temperature around 47. Calm wind. |
Friday
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A 30 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 60. Calm wind becoming south southwest around 5 mph. |
Friday Night
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Rain likely, mainly between 10pm and 4am. Patchy fog after 2am. Otherwise, mostly cloudy, with a steady temperature around 51. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible. |
Saturday
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Rain likely, mainly after 10am. Patchy dense fog before 10am. Otherwise, mostly cloudy, with a high near 57. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible. |
Saturday Night
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Rain. Patchy fog between 11pm and 2am. Low around 51. East southeast wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible. |
Sunday
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Rain before 4pm, then showers likely and possibly a thunderstorm after 4pm. High near 57. Southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible. |
Sunday Night
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Showers likely and possibly a thunderstorm before 10pm, then rain likely after 10pm. Cloudy, with a low around 50. South southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New precipitation amounts between 1 and 2 inches possible. |
Monday
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Rain likely before 10am, then showers likely and possibly a thunderstorm after 10am. Cloudy, with a high near 57. East southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible. |
Monday Night
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A chance of showers and thunderstorms before 4am, then a chance of rain and thunderstorms after 4am. Cloudy, with a low around 48. East wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between three quarters and one inch possible. |
Tuesday
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Rain likely, mainly after 10am. Cloudy, with a high near 56. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible. |
Tuesday Night
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Rain. The rain could be heavy at times. Low around 45. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible. |
Wednesday
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Rain. The rain could be heavy at times. High near 52. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible. |
Wednesday Night
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Showers and possibly a thunderstorm. Low around 44. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible. |
Christmas Day
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Rain. High near 51. South southeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible. |
Forecast from NOAA-NWS
for Mariposa CA.
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Weather Forecast Discussion
632
FXUS66 KHNX 190644 AAA
AFDHNX
Area Forecast Discussion
National Weather Service Hanford CA
1044 PM PST Thu Dec 18 2025
.UPDATE...
Updated Key Messages.
&&
.KEY MESSAGES...
1. Low clouds and dense fog return to the San Joaquin Valley and
Sierra foothills later tonight into Friday morning.
2. A significant pattern change is expected to take place by this
weekend with precipitation likely for the Sierra Nevada and its
foothills from Fresno County northwards. Moderate to briefly heavy
precipitation is possible in these areas from Saturday evening into
Sunday.
3. A second, stronger system is expected to arrive Tuesday, with a
moderate risk for heavy precipitation throughout Central California,
and a high risk for heavy snow in the Sierra Nevada expected from
Christmas Eve through the 26th next week.
&&
.DISCUSSION...
Low clouds and fog persist this morning; some clearing will
occur once again by this afternoon. In addition, there have been
reports of dense fog over the passes in Kern County near 4,000
feet, including Tehachapi along Highway 58 and the Grapevine
along Interstate 5 near the summit of Tejon Pass. Expect fog
and low clouds to redevelop at least over the Central Valley later
tonight, while there is up to a 40 percent chance of dense fog
returning after midnight tonight.
A chance of precipitation exists for Fresno County northward
beginning Friday afternoon, with the highest chances towards our
northernmost portions, including Merced County to Yosemite NP
(60-70 percent) but lower chances southward. Additional chances
continue into Saturday and Sunday, with the best chances in our
northern portions. A slight (at least a 15-20%) chance for
precipitation exists a bit south by Sunday, but mainly north of
Kern County. Precipitation amounts will be light to moderate,
with the highest amounts projected near Yosemite for this
weekend.
More widespread precipitation is in store for next week,
including Tuesday until at least Christmas Day. Confidence
continues to increase for totals of at least two inches of
rainfall in the San Joaquin Valley and several inches for the
Sierra Nevada foothills for this period. Snow levels will be
above 8,000 feet until at least Monday and lower to about 7,000
feet for Tuesday onward. Exact timing of precipitation for next
week remains uncertain, but it appears we are in for an active
period for quite some time once it begins.
An extended period of above average precipitation continues,
based on latest information from the Climate Prediction Center.
The 6-10 day outlooks show about a 70-80 percent chance for
above average precipitation, and the latest 8-14 day outlook has
a 50-60 percent chance for much of our forecast area. Above
average temperatures are favored for the 6-10 day period (about
a 35-50 percent chance) and up to a 40 percent chance for the
8-14 day period.
&&
.AVIATION...
IFR to LIFR ceilings and visibilities are expected to prevail for
much of the San Joaquin Valley during the next 24 hours, with a 40
to 50 percent chance of VLIFR in dense fog at all terminal sites
from 09Z to 18Z Friday. IFR to LIFR conditions will also persist in
the coastal ranges, Sierra foothills, and the Kern County mountains
due to low clouds. Otherwise, VFR conditions will prevail in the
Sierra Nevada and in the Kern County mountain and desert areas over
the next 24 hours.
&&
.AIR QUALITY ISSUES...
On Friday December 19 2025, Fireplace/Wood Stove Burning Status is:
No Burning Unless Registered in Fresno, Kern, and Madera Counties.
Burning Discouraged in Kings, Merced, and Tulare Counties, and Kern
(Greater Frazier Park Area) and Sequoia National Park and Forest.
&&
.CERTAINTY...
The level of certainty for days 1 and 2 is medium.
The level of certainty for days 3 through 7 is medium.
Certainty levels include low...medium...and high. Please visit
www.weather.gov/hnx/certainty.html for additional information
and/or to provide feedback.
&&
.HNX WATCHES/WARNINGS/ADVISORIES...
Dense Fog Advisory until 10 AM PST Friday for CAZ301>303-305>307-
309>312-314-315.
&&
$$
BSO/CMolina
weather.gov/hanford
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