SAN YSIDRO, CA 92143 Weather Forecast & Current Conditions

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SAN DIEGO/BROWN, CA
Current Weather

3:53 AM PST JAN 29, 2026
Clear
54°F
Feels Like: 54°F
Dewpoint: 30°F
Rel. Hum.: 40%
Visibility: 10 miles
Wind: Calm
Pressure: 30.13 inches
Last 72 hours

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SAN YSIDRO, CA 92143
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly sunny. Warmer. Highs 72 to 76 near the coast to 79 inland. Areas of winds northeast to 10 mph becoming west 10 mph this afternoon.
TONIGHT
Clear. Lows 49 to 53. Areas of winds east 10 mph.
FRIDAY
Sunny. Highs 74 to 79 near the coast to 80 to 83 inland. Areas of winds northeast 10 mph becoming northwest in the afternoon.
FRIDAY NIGHT
Mostly clear. Lows 52 to 57. Areas of winds east 10 mph.
SATURDAY
Sunny. Highs 75 to 79 near the coast to 81 to 84 inland. Areas of winds east to 10 mph becoming west 10 mph in the afternoon.
SATURDAY NIGHT
Mostly clear. Lows 51 to 54.
SUNDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 70 to 74 near the coast to 76 inland.
SUNDAY NIGHT
Partly cloudy. Lows 49 to 53.
MONDAY
Partly cloudy. Highs 68 to 73.
MONDAY NIGHT
Partly cloudy. Lows 49 to 52.
TUESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 69 to 73 near the coast to 74 to 77 inland.
TUESDAY NIGHT
Mostly clear. Lows 50 to 53.
WEDNESDAY
Mostly sunny. Highs 74 to 79 near the coast to 79 to 82 inland.

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  5:00 PM MST  1/28/2026
Thursday
29 JAN 2026
SAN YSIDRO, CA 92143 weather forecast Day 1, 0 hours 10 PM 55° 55° Mostly Cloudy 0%

0% Thunder
( 0% severe)
NE   3 53% 38°
Low 51° SAN YSIDRO, CA 92143 weather forecast Day 1, 3 hours 1 AM 54° 54° Mostly Cloudy E   3 47% 34°
High 79° SAN YSIDRO, CA 92143 weather forecast Day 1, 6 hours 4 AM 52° 52° Partly Cloudy 0%

0% Thunder
( 0% severe)
E   3 43% 30°

Partly Cloudy



SAN YSIDRO, CA 92143 weather forecast Day 1, 9 hours 7 AM 52° 51° Partly Cloudy E   5 36% 26°
SAN YSIDRO, CA 92143 weather forecast Day 1, 12 hours 10 AM 71° 71° Clear 0%

0% Thunder
( 0% severe)
E   6 20% 28°
SAN YSIDRO, CA 92143 weather forecast Day 1, 15 hours 1 PM 78° 77° Clear WNW   7 16% 28°
SAN YSIDRO, CA 92143 weather forecast Day 1, 18 hours 4 PM 75° 75° Clear 0%

0% Thunder
( 0% severe)
W   7 21% 33°
SAN YSIDRO, CA 92143 weather forecast Day 1, 21 hours 7 PM 63° 63° Clear SE   6 34% 34°
Friday
30 JAN 2026
SAN YSIDRO, CA 92143 weather forecast Day 2, 0 hours 10 PM 58° 57° Clear 0%

0% Thunder
( 0% severe)
ESE   6 33% 29°
Low 51° SAN YSIDRO, CA 92143 weather forecast Day 2, 3 hours 1 AM 55° 54° Clear ESE   6 35% 28°
High 82° SAN YSIDRO, CA 92143 weather forecast Day 2, 6 hours 4 AM 53° 51° Clear 0%

0% Thunder
( 0% severe)
ESE   6 35% 26°

Clear



SAN YSIDRO, CA 92143 weather forecast Day 2, 9 hours 7 AM 54° 53° Clear E   6 32% 25°
SAN YSIDRO, CA 92143 weather forecast Day 2, 12 hours 10 AM 73° 73° Clear 0%

0% Thunder
( 0% severe)
ENE   5 19% 28°
SAN YSIDRO, CA 92143 weather forecast Day 2, 15 hours 1 PM 79° 78° Clear N   8 17% 31°
SAN YSIDRO, CA 92143 weather forecast Day 2, 18 hours 4 PM 77° 77° Clear 0%

0% Thunder
( 0% severe)
NNE   7 22% 35°
SAN YSIDRO, CA 92143 weather forecast Day 2, 21 hours 7 PM 67° 67° Clear ENE   7 31% 35°

SAN DIEGO/BROWN, CA extended weather forecast

Saturday
31 JAN 2026
Sunday
1 FEB 2026
Monday
2 FEB 2026
Tuesday
3 FEB 2026
Wednesday
4 FEB 2026
Low 51° Low 49° Low 46° Low 49° Low 47°
High 82° High 76° High 69° High 74° High 76°
SAN YSIDRO, CA 92143 weather forecast Day 3 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
Clear
1% Rain
Partly Cloudy
1% Rain
Partly Cloudy
3% Rain
Mostly Cloudy
4% Rain
Partly Cloudy
4% Rain
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