SAN YSIDRO, CA 92143 Weather Forecast & Current Conditions

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SAN DIEGO/BROWN, CA
Current Weather

2:53 PM PDT OCT 1, 2025
Clear
75°F
Feels Like: 75°F
Dewpoint: 61°F
Rel. Hum.: 62%
Visibility: 10 miles
Wind: W at 12 mph, gusts to 18
Pressure: 29.98 inches
Last 72 hours

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SAN YSIDRO, CA 92143
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly sunny. Highs 71 to 76 near the coast to 75 to 79 inland. Areas of winds north 10 mph becoming west with gusts to 25 mph this afternoon.
TONIGHT
Partly cloudy. Patchy fog overnight. Lows 56 to 61. Areas of winds northwest 10 mph in the evening becoming light.
THURSDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 70 to 75 near the coast to 74 to 78 inland. Areas of winds north to 10 mph becoming west in the afternoon.
THURSDAY NIGHT
Partly cloudy. Lows 58 to 63. Areas of winds west to 10 mph in the evening becoming light.
FRIDAY
Mostly cloudy in the morning...becoming partly cloudy. Highs 69 to 74 near the coast to 73 to 77 inland. Areas of winds southeast 10 mph becoming west in the afternoon.
FRIDAY NIGHT
Partly cloudy in the evening...becoming mostly cloudy. Lows 56 to 61.
SATURDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 71 to 76.
SATURDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows around 60.
SUNDAY
Partly cloudy. Highs 68 to 73 near the coast to 72 to 76 inland.
SUNDAY NIGHT
Partly cloudy in the evening...becoming mostly cloudy. Lows 57 to 61.
MONDAY
Mostly cloudy in the morning...becoming partly cloudy. Highs 68 to 73.
MONDAY NIGHT
Partly cloudy. Lows 55 to 60.
TUESDAY
Mostly cloudy with patchy fog in the morning... Becoming partly cloudy. Highs 68 to 73.

Visible Weather Satellite
SAN YSIDRO, CA 92143
Infrared Weather Satellite
SAN YSIDRO, CA 92143
NEXRAD Weather Radar
SAN YSIDRO, CA 92143

SAN DIEGO/BROWN, CA 3 hourly weather forecast

weather forecast created  6:00 AM MDT 10/ 1/2025
Wednesday
1 OCT 2025
SAN YSIDRO, CA 92143 weather forecast Day 1, 12 hours 11 AM 73° 73° Clear 0%

0% Thunder
( 0% severe)
WNW   8 64% 60°
High 75° SAN YSIDRO, CA 92143 weather forecast Day 1, 15 hours 2 PM 74° 74° Clear WNW   13 66% 62°
Clear



SAN YSIDRO, CA 92143 weather forecast Day 1, 18 hours 5 PM 72° 72° Clear 0%

0% Thunder
( 0% severe)
WNW   13 71% 62°
SAN YSIDRO, CA 92143 weather forecast Day 1, 21 hours 8 PM 66° 66° Clear NW   10 84% 61°
Thursday
2 OCT 2025
SAN YSIDRO, CA 92143 weather forecast Day 2, 0 hours 11 PM 64° 64° Partly Cloudy 0%

0% Thunder
( 0% severe)
NNW   8 87% 60°
Low 60° SAN YSIDRO, CA 92143 weather forecast Day 2, 3 hours 2 AM 62° 62° Partly Cloudy N   5 90% 59°
High 75° SAN YSIDRO, CA 92143 weather forecast Day 2, 6 hours 5 AM 61° 62° Partly Cloudy 0%

0% Thunder
( 0% severe)
N   3 90% 58°

Partly Cloudy



SAN YSIDRO, CA 92143 weather forecast Day 2, 9 hours 8 AM 62° 62° Partly Cloudy N   5 90% 59°
SAN YSIDRO, CA 92143 weather forecast Day 2, 12 hours 11 AM 71° 71° Partly Cloudy 0%

0% Thunder
( 0% severe)
WNW   8 66% 59°
SAN YSIDRO, CA 92143 weather forecast Day 2, 15 hours 2 PM 73° 73° Clear WNW   12 64% 60°
SAN YSIDRO, CA 92143 weather forecast Day 2, 18 hours 5 PM 71° 71° Clear 0%

0% Thunder
( 0% severe)
WNW   10 68% 60°
SAN YSIDRO, CA 92143 weather forecast Day 2, 21 hours 8 PM 65° 65° Partly Cloudy WNW   5 87% 61°
Friday
3 OCT 2025
SAN YSIDRO, CA 92143 weather forecast Day 3, 0 hours 11 PM 64° 65° Mostly Cloudy 1%

0% Thunder
( 0% severe)
NW   5 90% 61°
Low 62° SAN YSIDRO, CA 92143 weather forecast Day 3, 3 hours 2 AM 64° 65° Mostly Cloudy N   3 87% 60°
High 73° SAN YSIDRO, CA 92143 weather forecast Day 3, 6 hours 5 AM 63° 64° Mostly Cloudy 1%

0% Thunder
( 0% severe)
NE   3 90% 60°

Decreasing Clouds



SAN YSIDRO, CA 92143 weather forecast Day 3, 9 hours 8 AM 63° 64° Mostly Cloudy NNE   5 90% 60°
SAN YSIDRO, CA 92143 weather forecast Day 3, 15 hours 11 AM 71° 71° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   7 68% 60°
SAN YSIDRO, CA 92143 weather forecast Day 3, 18 hours 2 PM 72° 72° Clear W   12 66% 60°
SAN YSIDRO, CA 92143 weather forecast Day 3, 21 hours 5 PM 69° 69° Clear     W   12 73% 60°

SAN DIEGO/BROWN, CA extended weather forecast

Saturday
4 OCT 2025
Sunday
5 OCT 2025
Monday
6 OCT 2025
Tuesday
7 OCT 2025
Wednesday
8 OCT 2025
Low 56° Low 56° Low 58° Low 56° Low 57°
High 76° High 76° High 75° High 76° High 81°
SAN YSIDRO, CA 92143 weather forecast Day 4 SAN YSIDRO, CA 92143 weather forecast Day 5 SAN YSIDRO, CA 92143 weather forecast Day 6 SAN YSIDRO, CA 92143 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
8% Rain
Mostly Cloudy
9% Rain
Overcast
18% Rain
Mostly Cloudy
9% Rain
Partly Cloudy
6% Rain
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