SAN YSIDRO, CA 92143 Weather Forecast & Current Conditions

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SAN DIEGO/BROWN, CA
Current Weather

10:53 AM PDT APR 29, 2026
Clear
68°F
Feels Like: 68°F
Dewpoint: 50°F
Rel. Hum.: 53%
Visibility: 10 miles
Wind: Variable at 5 mph
Pressure: 30.03 inches
Last 72 hours

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SAN YSIDRO, CA 92143
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Partly cloudy this morning...becoming mostly sunny. Highs 66 to 70 near the coast to 70 to 73 inland. Areas of winds west to 10 mph...becoming 10 to 15 mph this afternoon.
TONIGHT
Partly cloudy in the evening...becoming mostly cloudy overnight with patchy fog. Lows 50 to 55. Areas of winds west 10 mph in the evening becoming light.
THURSDAY
Mostly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs around 70. Areas of winds west to 10 mph.
THURSDAY NIGHT
Partly cloudy. Patchy fog overnight. Lows 52 to 57. Areas of winds south 10 mph in the evening becoming light.
FRIDAY
Mostly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 68 to 72 near the coast to 74 inland. Areas of winds south to 10 mph becoming west 10 mph in the afternoon.
FRIDAY NIGHT
Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 52 to 56.
SATURDAY
Patchy fog in the morning. Partly cloudy. Highs 68 to 73 near the coast to 74 to 77 inland.
SATURDAY NIGHT
Partly cloudy. Lows 54 to 58.
SUNDAY
Mostly cloudy in the morning...becoming partly cloudy. Highs 67 to 71 near the coast to 73 inland.
SUNDAY NIGHT
Partly cloudy in the evening...becoming mostly cloudy. Lows 52 to 58.
MONDAY
Mostly cloudy in the morning...becoming partly cloudy. Highs 67 to 71.
MONDAY NIGHT
Partly cloudy. Lows 51 to 57.
TUESDAY
Partly cloudy. Highs 67 to 71.

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  4/29/2026
Wednesday
29 APR 2026
SAN YSIDRO, CA 92143 weather forecast Day 1, 12 hours 11 AM 68° 68° Clear 0%

0% Thunder
( 0% severe)
W   7 53% 50°
High 70° SAN YSIDRO, CA 92143 weather forecast Day 1, 15 hours 2 PM 69° 69° Clear W   13 55% 52°
Partly Cloudy



SAN YSIDRO, CA 92143 weather forecast Day 1, 18 hours 5 PM 67° 67° Partly Cloudy 1%

0% Thunder
( 0% severe)
W   12 59% 52°
SAN YSIDRO, CA 92143 weather forecast Day 1, 21 hours 8 PM 61° 61° Partly Cloudy W   6 78% 54°
Thursday
30 APR 2026
SAN YSIDRO, CA 92143 weather forecast Day 2, 0 hours 11 PM 58° 58° Partly Cloudy 2%

0% Thunder
( 0% severe)
NW   3 87% 54°
Low 54° SAN YSIDRO, CA 92143 weather forecast Day 2, 3 hours 2 AM 56° 56° Partly Cloudy ESE   2 90% 53°
High 70° SAN YSIDRO, CA 92143 weather forecast Day 2, 6 hours 5 AM 55° 55° Mostly Cloudy 5%

0% Thunder
( 0% severe)
ESE   2 90% 52°

Decreasing Clouds



SAN YSIDRO, CA 92143 weather forecast Day 2, 9 hours 8 AM 58° 58° Mostly Cloudy N   3 83% 53°
SAN YSIDRO, CA 92143 weather forecast Day 2, 12 hours 11 AM 66° 66° Partly Cloudy 5%

0% Thunder
( 0% severe)
W   7 61% 52°
SAN YSIDRO, CA 92143 weather forecast Day 2, 15 hours 2 PM 69° 69° Clear W   13 59% 54°
SAN YSIDRO, CA 92143 weather forecast Day 2, 18 hours 5 PM 66° 66° Partly Cloudy 2%

0% Thunder
( 0% severe)
W   10 68% 55°
SAN YSIDRO, CA 92143 weather forecast Day 2, 21 hours 8 PM 61° 61° Partly Cloudy WSW   6 84% 56°
Friday
1 MAY 2026
SAN YSIDRO, CA 92143 weather forecast Day 3, 0 hours 11 PM 59° 60° Partly Cloudy 1%

0% Thunder
( 0% severe)
SSW   3 87% 55°
Low 56° SAN YSIDRO, CA 92143 weather forecast Day 3, 3 hours 2 AM 58° 59° Partly Cloudy S   2 90% 55°
High 72° SAN YSIDRO, CA 92143 weather forecast Day 3, 6 hours 5 AM 57° 58° Mostly Cloudy 2%

0% Thunder
( 0% severe)
ESE   2 90% 54°

Decreasing Clouds



SAN YSIDRO, CA 92143 weather forecast Day 3, 9 hours 8 AM 60° 61° Partly Cloudy SSE   2 84% 55°
SAN YSIDRO, CA 92143 weather forecast Day 3, 15 hours 11 AM 69° 69° Clear 1%

0% Thunder
( 0% severe)
W   6 61% 55°
SAN YSIDRO, CA 92143 weather forecast Day 3, 18 hours 2 PM 71° 71° Clear W   12 61% 57°
SAN YSIDRO, CA 92143 weather forecast Day 3, 21 hours 5 PM 68° 68° Clear     W   10 68% 57°

SAN DIEGO/BROWN, CA extended weather forecast

Saturday
2 MAY 2026
Sunday
3 MAY 2026
Monday
4 MAY 2026
Tuesday
5 MAY 2026
Wednesday
6 MAY 2026
Low 56° Low 57° Low 54° Low 54° Low 52°
High 72° High 68° High 68° High 67° High 68°
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
Overcast
8% Rain
Overcast
22% Rain
Mostly Cloudy
20% Rain
Mostly Cloudy
39% Rain
Partly Cloudy
26% Rain
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