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Mendota, California 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Mendota CA
National Weather Service Forecast for:
Mendota CA
Issued by: National Weather Service San Joaquin Valley/Hanford, CA |
| Updated: 6:57 am PST Dec 19, 2025 |
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Today
Areas Dense
Fog then
Mostly Cloudy
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Tonight
Patchy Fog
then Slight
Chance Rain
and Patchy
Dense Fog
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Saturday
Chance Rain
and Patchy
Dense Fog
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Saturday
Night
Chance Rain
and Patchy
Fog
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Sunday
Chance Rain
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Sunday
Night
Chance
Showers
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Monday
Chance
Showers
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Monday
Night
Chance Rain
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Tuesday
Chance Rain
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| Hi 54 °F |
Lo 49 °F |
Hi 56 °F |
Lo 52 °F |
Hi 61 °F |
Lo 53 °F |
Hi 59 °F |
Lo 52 °F |
Hi 58 °F |
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Dense Fog Advisory
Today
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Areas of dense fog before 11am. Otherwise, mostly cloudy, with a high near 54. Calm wind becoming north around 5 mph. |
Tonight
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A 10 percent chance of rain after 4am. Patchy dense fog. Otherwise, mostly cloudy, with a low around 49. Calm wind becoming east southeast around 5 mph. |
Saturday
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A 30 percent chance of rain, mainly after 10am. Patchy dense fog before 10am. Otherwise, mostly cloudy, with a high near 56. Southeast wind around 5 mph. |
Saturday Night
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A 30 percent chance of rain. Patchy fog between midnight and 2am. Otherwise, cloudy, with a low around 52. Southeast wind around 5 mph. |
Sunday
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A 50 percent chance of rain. Cloudy, with a high near 61. Southeast wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible. |
Sunday Night
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A chance of showers and thunderstorms before 10pm, then a chance of rain after 10pm. Cloudy, with a low around 53. Southeast wind around 5 mph. Chance of precipitation is 40%. |
Monday
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A chance of rain before 10am, then a chance of showers and thunderstorms after 10am. Cloudy, with a high near 59. East southeast wind around 5 mph. Chance of precipitation is 40%. |
Monday Night
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A 40 percent chance of rain. Cloudy, with a low around 52. South southeast wind around 5 mph. |
Tuesday
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A 50 percent chance of rain. Cloudy, with a high near 58. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. New precipitation amounts between a tenth and quarter of an inch possible. |
Tuesday Night
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Rain. Low around 51. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible. |
Wednesday
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Rain. High near 54. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible. |
Wednesday Night
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Rain. Low around 52. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible. |
Christmas Day
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Rain. High near 54. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible. |
Forecast from NOAA-NWS
for Mendota CA.
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Weather Forecast Discussion
603
FXUS66 KHNX 191149 AAA
AFDHNX
Area Forecast Discussion
National Weather Service Hanford CA
349 AM PST Fri Dec 19 2025
.UPDATE...
Updated Aviation section.
&&
.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
through 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/McCoy
weather.gov/hanford
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